Get Checking and filling Guide for Volkswagen Tiguan 4 Door 2023

Checking and ﬁlling

In the engine compartment

Safety precautions for working in the engine compartment

The engine compartment is a potentially dangerous area in the vehicle. Only perform work in the engine compartment if you are familiar with the necessary activitie

and the general safety precautions, and if the correct operating equipment, ﬂuids and suitable tools are available. Work performed incorrectly can result in serious

injuries ⇒

. Have all work performed by suitably qualiﬁed professionals if necessary. Volkswagen recommends contacting an authorized Volkswagen dealer or

authorized Volkswagen Service Facility.

WARNING

The engine compartment is a dangerous area. Any work in the engine compartment could lead to accidents and serious or fatal injuries.

Always work as cautiously and carefully as possible.

Only perform work in the engine compartment if you are familiar with the required activities.

If you are not sure how to do the work in the engine compartment, go to an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Before working in the engine compartment, apply the electronic parking brake and move the selector lever to the

into the neutral position.

position or move the gearshift lever

Switch off the ignition and store the vehicle key securely and far enough away from the vehicle to ensure that the engine cannot be started accidentally.

Never touch hot components in the engine.

Do not leave any items, such as cleaning cloths or tools, in the engine compartment.

Always keep children away from the engine compartment and never leave them unattended.

WARNING

The engine compartment contains moving components. When working in the engine compartment, particularly when starting the vehicle or if the engine is

running, contact with moving parts, e.g. fan blades in the radiator fan, may cause serious or fatal injuries.

Never reach into the radiator fan or into the area near the radiator fan, even if the engine is switched off or the ignition is switched off. The ventilator is

temperature-controlled and may switch on by itself.

To reduce the risk of anything becoming caught in engine components, always remove any jewelry and/or ties, tie back long hair, and avoid wearing

loose-ﬁtting clothing when performing work.

Always press the accelerator pedal extremely carefully and never press it without paying close attention. The vehicle could begin moving, even if the

electronic parking brake is set.

WARNING

Escaping hot steam or hot coolant and hot components may cause serious burns.

Never open or close the hood if steam or engine coolant is escaping.

Always wait until you can no longer see or hear steam or engine coolant escaping from the engine compartment.

WARNING

The engine cooling system is under pressure when the engine is hot. If the cover is opened carelessly, coolant may spray out and cause serious burns or fatal

injuries.

Never open the cap on the coolant expansion tank when the engine is hot.

Always protect your face, hands and arms from hot coolant or steam with a large, thick cloth if you have to open the cover of the coolant tank.

Slowly and very carefully turn the cap on the coolant expansion tank counterclockwise while pressing down lightly on the cap.

WARNING

Additional insulation, such as covers in the engine compartment or discarded items such as cleaning cloths or tools, can cause malfunctions, damage to the

engine, or ﬁres. This could result in serious or fatal injuries.

Never cover the engine with blankets or other insulating materials.

Never leave items in the engine compartment.

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Always make sure the vehicle is parked on a solid and level surface before performing any work in the engine compartment

⇒

.

WARNING

If the vehicle is not secured against rolling away during maintenance procedures, the vehicle may move unintentionally. This could result in accidents and

serious or fatal injuries.

Manually deactivate the start-stop system.

Never work under the vehicle if it is not correctly secured against rolling away.

If working under the vehicle with the wheels touching the ﬂoor, ensure the vehicle is on a level surface and the wheels are secured.

If you are working underneath the vehicle, additionally support the vehicle securely with suitable stands. The vehicle jack is not sufﬁcient for this purpose

and may collapse.

WARNING

The high voltage in the electrical system may cause electric shocks and burns. This could result in serious or fatal injuries.

Never short-circuit the electrical system. The 12 V vehicle battery may explode.

Never touch the electrical wires and connections of the gas discharge lamps.

Preparing the vehicle for work in the engine compartment

Always perform the following activities in the speciﬁed sequence before all work in the engine compartment ⇒

:

1. Park the vehicle safely on level and stable ground ⇒ Parking.

2. If necessary, remove the vehicle key from the vehicle and store it outside of the vehicle so that the vehicle does not start accidentally.

3. Let the engine cool down sufﬁciently.

4. Always keep other people away from the engine compartment.

5. Secure the vehicle against rolling away.

WARNING

If the steps described for working in the engine compartment are ignored, accidents may occur. Serious injuries may result.

Always follow the described tasks and the general safety precautions.

Opening and closing the hood

Fig. 201 In the driver's side footwell: Release lever for the hood (general example).

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Fig. 202 Above the radiator grille: Opening lever for the hood.

Opening the hood

1. Open the driver door and pull the release lever in the direction of the arrow ﬁg. 201 . The hood will pop open from the locking mechanism in the lock carrier

⇒

.

2. To open the hood fully, slightly lift the hood while pushing the actuating lever in the direction of the arrow ﬁg. 202.

The hood is held open by the gas-pressure strut.

Closing the hood

1. Push the hood down until you override the force of the gas-pressure strut.

2. Let the hood fall into the lock carrier catch from a height of approximately 20 cm (8 inches); do not press it down. When the hood is closed correctly, it will be

ﬂush with the surrounding sections of the vehicle body ⇒

.

If the hood is not closed correctly, lift the hood up and try to close it again.

If the hood is not correctly closed, an indicator will appear in the display of the Volkswagen Digital Cockpit. Once the hood is correctly closed, the indicator will turn

off.

WARNING

If the hood is not closed correctly, it could open suddenly while driving and block the view through the windshield. Accidents and serious or fatal injuries could

result.

After closing the hood, check that the catch is engaged correctly in the lock carrier.

If you realize when driving that the hood is not closed properly, park the vehicle safely and close the hood.

WARNING

Failing to take care when opening and closing the hood can result in serious injuries.

Do not open or close the hood if any persons are in the closing range of the hood.

NOTICE

Opening and closing the hood incorrectly can cause damage to the hood or wiper arms.

Only open the hood when wiper mode is switched off and with the windshield wipers folded in.

Always fold the wiper arms against the windshield before driving.

Display

An image in the instrument cluster display indicates if the hood is open or has not closed correctly

⇒

.

Do not continue driving!

1. Stop the vehicle as soon as it is safe to do so.

2. If necessary, lift the hood and close it again.

The image is also displayed when the ignition is switched off, and it disappears several seconds after the doors are closed and the vehicle is locked.

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WARNING

Disregarding warning notiﬁcations could lead to breakdowns while driving, accidents and serious or fatal injuries.

Never ignore warning notiﬁcations.

Stop the vehicle as soon as it is safe to do so.

Do not continue driving and seek professional assistance if the warning light does not go out.

Operating ﬂuids and operating equipment

All ﬂuids and operating equipment, such as engine coolant, engine oils and vehicle batteries, are continuously being developed. Have ﬂuids and operating

equipment replaced by suitably qualiﬁed professionals. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service

Facility.

WARNING

Carrying out work on the fuel system may cause ﬁres and serious or fatal injuries due to electrical discharge and ﬂying sparks.

Always disconnect the 12 V vehicle battery.

Always have a fully-functioning, checked ﬁre extinguisher nearby.

Make sure that the vehicle is unlocked when the 12 V vehicle battery is disconnected. Otherwise, the anti-theft alarm system will be activated.

WARNING

Fluids may be poisonous. Improper use and storage may cause serious or fatal injuries.

Only store ﬂuids in their sealed original containers.

Never use empty food cans, bottles, or other containers to store ﬂuids, because someone could drink the ﬂuids by mistake.

Keep children away from all ﬂuids and operating equipment.

Always read and heed the information and warnings on the packaging for the ﬂuids.

When using products that emit harmful vapors, always work outdoors or in a well-ventilated area.

WARNING

Fluids and some materials in the engine compartment are highly ﬂammable and may ignite on contact with hot surfaces, sparks or naked ﬂames. This can lead

to a ﬁre and cause accidents and serious or fatal injuries.

Never smoke near the engine compartment.

Never work near open ﬂames or sparks.

Never perform work near sources of heat, boilers, or other open ﬂames.

Never pour or spill ﬂuids on the engine.

Always have a fully-functioning, checked ﬁre extinguisher nearby.

NOTICE

The use of incorrect ﬂuids can cause serious malfunctions and damage to the engine.

When ﬁlling or changing ﬂuids, make sure the correct ﬂuids are added to the corresponding reservoirs.

Fluids leaking from the vehicle can cause environmental damage. Always check the ground under the vehicle for leaking ﬂuids. If you see spots of ﬂuid on the

ground under the vehicle, have the vehicle checked by an authorized Volkswagen dealer or authorized Volkswagen Service Facility. Dispose of leaking ﬂuids

correctly. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Washer ﬂuid

General information

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Fig. 203 In the engine compartment: Cap on the washer fluid reservoir (general example).

The windshield washer ﬂuid reservoir is located in the engine compartment. The washer ﬂuid reservoir is identiﬁed with the

Check the washer ﬂuid level regularly and ﬁll if necessary.

symbol on the cap ﬁg. 203.

Preparations

1. Prepare the vehicle for work in the engine compartment ⇒ In the engine compartment.

2. Open the hood → page , Opening and closing the hood.

Checking and reﬁlling

1. Check if there is enough washer ﬂuid in the reservoir.

2. To top it up, mix clean water with a suitable alcohol-based windshield cleaner. Follow the mixing instructions on the packaging of the windshield cleaner

. There is a screen in the ﬁller tube in the windshield washer ﬂuid reservoir. The screen keeps large particles of contaminants from entering the washer

nozzles when you reﬁll the washer ﬂuid ⇒

⇒

.

3. When the outside temperatures are cold, an anti-freeze agent should be added to the water so that it does not freeze. Follow the mixing instructions on the

packaging of the anti-freeze agent.

Do not use distilled water to fill the windshield washer fluid tank.

WARNING

Unsuitable additives in the windshield washer ﬂuid can create an oily ﬁlm on the vehicle windshield. This may reduce visibility and increase the risk of accidents

and serious or fatal injuries.

Never add coolant additive or similar unsuitable additives to the windshield washer ﬂuid.

NOTICE

Using a cleaning agent that contains acid may result in damage and cause the spray nozzles to malfunction.

Never top up the windshield washer ﬂuid tank using a cleaning agent that contains acid, e.g. vinegar-based cleaners.

NOTICE

Mixing different windshield cleaners can cause the components to ﬂocculate and the spray nozzles to clog.

Only use suitable alcohol-based windshield cleaners.

Never mix different windshield cleaners together.

NOTICE

When you top up the windshield washer ﬂuid, if you use a damaged screen or do not use a screen at all, dirt particles may get into the windshield washer ﬂuid

tank. The spray nozzles may become clogged.

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Take the screen out only to clean it.

Replace a damaged or missing screen.

Engine oil

Introduction

The engine oils are determined based on the requirements of the engines, emissions control systems, and the fuel quality. On all combustion engines, the engine o

comes into contact with combustion residue and fuel, which affects the aging of the engine oil. Using the correct engine oil is essential for the function and service

life of the engine. The vehicle is ﬁlled at the factory with a special multi-purpose, low-viscosity oil that can generally be used year-round.

The vehicle can consume engine oil. The engine oil consumption can vary and can change throughout the service life of the vehicle. Depending on the driving style

and the usage conditions, the engine oil consumption can be up to 1 l (1 quart) per 2000 kilometers (1200 miles); it can also be higher within the ﬁrst

5000 kilometers (3100 miles) on new vehicles. Because of this, the engine oil level must be checked regularly and it is best to check the level before long drives.

WARNING

Engine oil gets extremely hot when the engine is running. Failure to take care when handling hot engine oil can cause serious bodily burns. This could result in

serious or fatal injuries.

Always allow the engine to cool down before starting work with the engine oil.

WARNING

Engine oil is poisonous. Contact with engine oil, especially swallowing engine oil, may result in serious or fatal injuries.

If you swallow engine oil, seek urgent medical help.

If you have health problems after working with engine oil, seek medical help.

Always store engine oil out of the reach of children and only in the sealed original container. This also applies to used oil until it is disposed.

Never use empty food cans, bottles, or other containers to store engine oil, because someone could drink the engine oil by mistake.

Avoid regular contact with engine oil to prevent damage to your skin.

Protect your skin, face and particularly your eyes when working with engine oil.

Do not eat, drink or smoke when working with engine oil.

Wash your skin with soap and water after working with engine oil.

Engine oil that has dripped and spilled can pollute the environment. Catch any leaking operating ﬂuids and dispose of them correctly according to

environmental regulations.

Engine oil standards

Please read the introductory information and heed the Warnings and Notice ⇒

Safety precautions for working in the engine compartment .

Utilized engine oil

There is a label on the lock carrier that shows which engine oil should be added. Please follow the note and if possible only add the indicated engine oil

⇒

.

If this is not possible, get professional assistance to ﬁnd out which engine oil is suitable for your vehicle. Volkswagen recommends contacting an authorized

Volkswagen dealer or authorized Volkswagen Service Facility.

If the engine oil recommended by an authorized Volkswagen dealer or authorized Volkswagen Service Facility qualiﬁed in this respect is not available, a different

engine oil can be used in an emergency. To reduce the risk of damaging the engine, a maximum of 0.5 liters (0.5 qt) of the following engine oils may be added until

the next oil change:

Gasoline engines: ACEA C3, ACEA C4, API SP, or ILSAC GF-6A standard. All viscosity classes in these standards are permitted.

NOTICE

Using engine oils that have not been approved in accordance with the respective VW standard can cause damage to the engine.

When reﬁlling, only use engine oils that comply with the quality requirements of the respectively applicable VW standard.

Only if you absolutely must, add max. 0.5 l (0.5 qt) of engine oil that does not comply with the speciﬁed engine oil standards.

Volkswagen recommends Volkswagen Genuine oil.

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Changing the engine oil

Please read the introductory information and heed the Warnings and Notice ⇒

Safety precautions for working in the engine compartment .

The engine oil must be changed regularly in accordance with the instructions in the warranty and maintenance. Your service schedule is supplied with your Manual.

Service schedule.

Additives in the engine oil can make new engine oil appear dark after a brief engine run time. This is normal and is no reason to change the engine oil more

frequently.

WARNING

If care is not taken when changing engine oil, the oil can cause environmental damage, serious burns, or ﬁre. This could result in serious or fatal injuries.

Always allow the engine to cool down completely before the engine oil change.

Always wear eye protection for the engine oil change.

Keep your arms horizontal when using your ﬁngers to unscrew the oil drain plug, so that the draining oil does not drip down your arm.

Use a container suitable for collecting used oil that can hold at least the entire quantity of oil in the engine.

WARNING

Engine oil is poisonous. Contact with engine oil, especially swallowing engine oil, may result in serious or fatal injuries.

If you swallow engine oil, seek urgent medical help.

If you have health problems after working with engine oil, seek medical help.

Always store engine oil in the sealed original container and keep it out of the reach of children. This also applies to used oil until it is disposed.

Never use empty food cans, bottles, or other containers to store engine oil, because someone could drink the engine oil by mistake.

Avoid regular contact with engine oil to prevent damage to your skin.

Protect your skin, face and particularly your eyes when working with engine oil.

Do not eat, drink or smoke when working with engine oil.

Wash your skin with soap and water after working with engine oil.

NOTICE

Engine oil and ﬁlter changes require special tools, technical knowledge and the correct disposal of the used oil. Failing to act properly may cause damage to the

vehicle.

For this reason, always have the engine oil and ﬁlters changed by an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Dispose of the engine oil in a way that will not harm the environment and only at a collection point for used oil, e.g. a recycling center or specialist retailer.

Checking the engine oil level and adding oil

Please read the introductory information and heed the Warnings and Notice ⇒

Safety precautions for working in the engine compartment .

Preparations

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Fig. 204 In the engine compartment: engine oil filler cap (general example).

To avoid an incorrect oil level reading, perform the following steps:

1. Park vehicles with an engine at operating temperature on a level surface.

2. Wait at least ﬁve minutes for the engine oil to ﬂow back into the oil pan.

3. Open the hood.

4. Find the engine oil ﬁller and the dipstick.

You can identify these by the

ﬁg. 204 symbol on the engine oil ﬁller cap and the colored handle on the oil dipstick.

Checking the engine oil level

Fig. 205 Engine oil level markings on the oil dipstick (versions).

The engine oil level is too high.

Oil level in the normal range.

The engine oil level is too low.

1. Remove the dipstick from the guide tube and wipe the dipstick off using a clean cloth.

2. Reinsert the dipstick into the guide tube and push it all the way in. If there is an alignment tab on the top of the engine oil dipstick, make sure it lines up with the

notch in the guide tube, and that the dipstick goes all the way in.

3. Remove the dipstick again and read the oil level on the dipstick as described below ﬁg. 205:

The engine oil level is too high. If necessary, follow the messages in the instrument cluster display or contact an authorized Volkswagen dealer or authorize

Volkswagen Service Facility ⇒

.

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Oil level in the normal range. Engine oil can be added up to the upper edge of this area, for example if there is heavy engine load.

The engine oil level is too low. Add engine oil immediately.

4. After reading the oil level, reinsert the dipstick back into the guide tube and push it all the way in.

For high vehicle loads, for example when driving long distances on highways in the summer or when driving through high mountains, the engine oil level should be

the upper section of the permitted area.

Adding engine oil

WARNING

When you top up the engine oil, it could spill or overﬂow and ignite on contact with hot engine components. This may cause burns or a ﬁre. This could result in

serious or fatal injuries.

Always make sure that the engine oil cap is installed securely on the engine ﬁller opening after adding oil and that the oil dipstick is inserted correctly in

the guide tube.

Always ensure that engine oil does not spill onto cold components in the engine.

Only perform these activities in the speciﬁed order ⇒

1. Remove the cap on the engine oil ﬁller ﬁg. 204.

⇒

:

2. Top up the engine oil gradually in small quantities, not more than 0.5 l (0.5 quart), or follow the recommendation in the display of the Volkswagen Digital Cockpi

Volkswagen recommends using the approved engine oils in accordance with the respective VW standard.

3. To avoid overﬁlling, you must wait at least one minute each time you add engine oil so that the engine oil can ﬂow into the oil pan up to the marking on the oil

dipstick.

4. Read the oil level on the dipstick again before adding a little more. Never add too much oil.

When you are done adding oil, the oil level should be in the center of area ﬁg. 205

. The engine oil level must not be in the area ﬁg. 205

.

5. If you accidentally add too much engine oil and the engine oil level is in area ﬁg. 205

, do not start the engine ⇒ . Contact an authorized Volkswagen

dealer or authorized Volkswagen Service Facility for assistance.

6. Close the cap on the engine oil ﬁller when you are done adding engine oil.

7. Insert the oil dipstick all the way into the guide tube. If there is an alignment tab on the top of the engine oil dipstick, make sure it lines up with the notch in the

guide tube, and that the dipstick goes all the way in.

8. Close the hood.

CAUTION

Starting the engine with the engine oil level too high after reﬁlling can cause engine damage.

Do not start the engine, and seek professional assistance.

NOTICE

Using incorrect ﬂuids can result in malfunctions and engine damage.

When topping up ﬂuids, make sure the correct ﬂuids are added to the correct reservoirs.

Volkswagen recommends using the approved engine oils in accordance with the respective VW standard.

If you are not sure where the cap and the oil dipstick are located, contact an authorized Volkswagen dealer or authorized Volkswagen Service Facility for

assistance. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Troubleshooting

Please read the introductory information and heed the Warnings and Notice ⇒

Safety precautions for working in the engine compartment .

Engine oil pressure too low

The red warning light blinks. A message is shown in the instrument cluster display.

Do not continue driving! Engine damage could result.

1. Stop the vehicle as soon as it is safe to do so ⇒ Parking.

2. Stop the engine.

3. Check the engine oil level ⇒ Checking the engine oil level and adding oil .

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4. If the warning light ﬂashes, do not continue driving or let the engine run, even if the oil is at the correct level. Engine damage could result. Contact an authorized

Volkswagen dealer or authorized Volkswagen Service Facility for assistance.

Engine oil level very low

The red warning light blinks. A message is shown in the instrument cluster display.

Do not continue driving! Engine damage could result.

1. Stop the vehicle as soon as it is safe to do so ⇒ Parking.

2. Stop the engine.

3. Check the engine oil level ⇒ Checking the engine oil level and adding oil .

4. If necessary, top up the engine oil gradually in small quantities (not more than 0.5 l (0.5 qt) in total) or observe the top-up recommendation in the display of the

Volkswagen Digital Cockpit.

5. If the warning light lights up, do not continue driving or let the engine run, even if the oil is at the correct level. Engine damage could result. Contact an

authorized Volkswagen dealer or authorized Volkswagen Service Facility for assistance.

Engine oil level too low

The yellow indicator light turns on. A message is shown in the instrument cluster display.

1. Stop the vehicle as soon as it is safe to do so ⇒ Parking.

2. Stop the engine.

3. Check the engine oil level ⇒ Checking the engine oil level and adding oil .

4. If necessary, top up the engine oil gradually in small quantities (not more than 0.5 l (0.5 qt) in total) or observe the top-up recommendation in the display of the

Volkswagen Digital Cockpit.

5. If the indicator light comes on, do not continue driving or let the engine run, even if the oil is at the correct level. Engine damage could result. Contact an

authorized Volkswagen dealer or authorized Volkswagen Service Facility for assistance.

Engine oil level too high

The yellow indicator light turns on. A message is shown in the instrument cluster display.

1. Stop the vehicle as soon as it is safe to do so ⇒ Parking.

2. Stop the engine.

3. Check the engine oil level ⇒ Checking the engine oil level and adding oil .

4. If the engine oil level is too high, do not drive any further or leave the engine running. Engine damage could result. Contact an authorized Volkswagen dealer or

authorized Volkswagen Service Facility for assistance.

or

Engine oil system malfunction

The indicator light ﬂashes yellow. A message is shown in the instrument cluster display.

1. Contact a suitably qualiﬁed professional. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Engine coolant

Introduction

Only perform work on the engine cooling system if you are familiar with the necessary activities and the general safety precautions, and if the correct operating

equipment, ﬂuids and suitable tools are available. Work performed incorrectly can result in serious injuries ⇒

. Have all work performed by suitably qualiﬁed

professionals if necessary. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Information about warning and indicator lights can be found in the troubleshooting section at the end of the chapter ⇒ Troubleshooting.

WARNING

Engine coolant is poisonous. Contact with coolant, especially swallowing coolant, may result in serious or fatal injuries.

If you swallow coolant, seek urgent medical help.

If you have health problems after working with coolant, seek medical help.

Always store engine coolant out of the reach of children and only within the sealed original container.

Never use empty food cans, bottles, or other containers to store engine coolant, because someone could drink the engine coolant by mistake.

Avoid regular contact with coolant to prevent damage to your skin.

Protect your skin, face, and particularly your eyes when working with coolant.

Do not eat, drink, or smoke when working with coolant.

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Wash your skin with soap and water after working with coolant.

WARNING

In extremely low temperatures, the coolant can freeze and the vehicle could break down. This can cause the heating to stop working in the vehicle. Vehicle

occupants could die of exposure if they do not have sufﬁcient warm clothing.

Make sure the coolant additive is always adjusted according to the ambient temperature.

Only use coolant additive approved by the manufacturer.

Coolant and coolant additives can pollute the environment. Catch any leaking operating ﬂuids and dispose of them correctly according to environmental

regulations.

Engine coolant speciﬁcations

Please read the introductory information and heed the Warnings and Notice ⇒

Safety precautions for working in the engine compartment .

The cooling system is ﬁlled at the factory with a mixture of specially prepared water and at least 40% coolant additive G12evo (TL 744-L).

To protect the engine cooling system, there must always be at least a 40% proportion of coolant additive. If greater freeze protection is needed due to the climate,

the proportion of coolant additive can be increased. However, the proportion of coolant additive must not exceed 55 %, because otherwise the freeze protection will

be reduced and the cooling effect will be decreased.

The engine coolant additive can be recognized by its violet color. The mixture of water and coolant additive provides freeze protection down to -25 °C (-13 °F),

protects the aluminum alloy parts of the cooling system from corrosion, prevents limescale deposits, and increases the boiling point of the coolant.

If the engine coolant is being topped up, a blend of distilled water and at least 40% of the G12evo engine coolant additive must be used to ensure optimum

corrosion protection ⇒

.

CAUTION

In extremely low temperatures, the coolant can freeze and the vehicle could break down. This can cause the heating to stop working in the vehicle. Vehicle

occupants could die of exposure if they do not have sufﬁcient warm clothing.

Make sure the coolant additive is always adjusted according to the ambient temperature.

Only use coolant additive approved by the manufacturer.

NOTICE

The coloring of the engine coolant results from the mixture of the purple coolant additive and distilled water. If the ﬂuid in the coolant expansion tank is not

purple, but for example brown, the engine coolant has been mixed with another non-suitable coolant. Serious malfunctions or damage to the engine and cooling

system could occur.

Only use coolant additive approved by the manufacturer.

If the coolant turns brown, have it changed immediately by an authorized Volkswagen dealer or authorized Volkswagen Service Facility. Volkswagen

recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Never mix original Volkswagen coolant additives with coolant additives that are not approved by Volkswagen when topping up.

Engine coolant and coolant additives can harm the environment. Catch any leaking operating ﬂuids and dispose of them correctly according to environmental

regulations.

Checking and ﬁlling engine coolant

Please read the introductory information and heed the Warnings and Notice ⇒

Safety precautions for working in the engine compartment .

Preparations

1. Parking the vehicle on a level, secure surface.

2. Allow the engine to cool ⇒

.

3. Open the hood.

The coolant expansion tank is identiﬁed with the

red symbol on the cap ﬁg. 206.

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Fig. 206 In the engine compartment: cap on the engine coolant expansion tank.

WARNING

Escaping hot steam or hot coolant and hot components may cause serious burns.

Never open the engine hood if you can see or hear steam or coolant escaping from the engine compartment.

Always wait until you can no longer see or hear steam or engine coolant escaping from the engine compartment.

WARNING

The engine cooling system is under pressure when the engine is hot. If the cover is opened carelessly, coolant may spray out and cause serious burns or fatal

injuries.

Never open the cap on the coolant expansion tank when the engine is hot.

Always protect your face, hands and arms from hot coolant or steam with a large, thick cloth if you need to open the cover of the coolant tank.

Slowly and very carefully turn the cap on the coolant expansion tank counterclockwise while pressing down lightly on the cap.

Checking the coolant level

Fig. 207 In the engine compartment: markings on the engine coolant expansion tank.

When new vehicles are delivered or after repairs to the cooling system, the coolant level may be above the marked area. This is normal. The coolant does not need

to be extracted.

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The coolant level cannot be checked exactly for every model, because the view of the ﬂuid level in the coolant expansion tank may be obstructed. If you cannot rea

off the engine coolant level accurately, contact a suitably qualiﬁed professional. Volkswagen recommends contacting an authorized Volkswagen dealer or

authorized Volkswagen Service Facility.

1. When the engine is cold, check the coolant level using the markings on the side of the engine coolant expansion tank ﬁg. 207. The coolant level must be

between the markings.

2. If the ﬂuid level in the coolant expansion tank is below the minimum mark (“min”), have coolant added. When the engine is warm, the engine coolant level may

be slightly above the upper marking.

3. If no coolant is visible in the coolant expansion tank, do not add coolant

⇒

.

Filling the coolant

1. Carefully unscrew the cap ⇒

.

2. Only add new coolant that conforms to the Volkswagen speciﬁcation ⇒ Engine coolant speciﬁcations.

If there is no engine coolant available that conforms to the required speciﬁcation, initially only top up with distilled water. Then have the correct mixture ratio

using the speciﬁed coolant additive restored as soon as possible by an authorized Volkswagen dealer or authorized Volkswagen Service Facility. Volkswagen

recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility ⇒

.

3. Top up the engine coolant to the upper ﬁll level marker. After topping up the engine coolant, the coolant level must be between the markings on the coolant

expansion tank ﬁg. 207.

4. Install the cap securely.

5. Check the coolant level after one day. If the level of the engine coolant tank drops below the “min” minimum marking again, contact an authorized Volkswagen

dealer or authorized Volkswagen Service Facility and have the cooling system checked. Volkswagen recommends contacting an authorized Volkswagen dealer

or authorized Volkswagen Service Facility.

6. If there is no engine coolant available that conforms to the speciﬁcation, do not use any other engine coolant additive in an emergency

⇒

.

NOTICE

Coolant expands when it heats up. If coolant is topped up above the marked level, excess coolant may leak out and cause damage to the vehicle.

Do not reﬁll the system with engine coolant above the upper edge of the marked area of the engine coolant tank.

NOTICE

If there is no more engine coolant in the coolant expansion tank, air can get into the cooling system. This could result in damage to the engine.

Do not continue driving.

Do not top up the coolant.

See an authorized Volkswagen dealer or authorized Volkswagen Service Facility for assistance.

NOTICE

The chemical components contained in water that is not distilled can cause considerable corrosion damage in the engine. This can cause engine malfunctions.

Only use distilled water for reﬁlling the system!

If you have added water that is not distilled, have the ﬂuid in the cooling system changed completely by an authorized Volkswagen dealer or authorized

Volkswagen Service Facility. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

NOTICE

The use of incorrect ﬂuids can cause serious malfunctions and damage to the engine.

When ﬁlling or changing ﬂuids, make sure the correct ﬂuids are added to the corresponding reservoirs.

Troubleshooting

Please read the introductory information and heed the Warnings and Notice ⇒

Safety precautions for working in the engine compartment .

Engine coolant

The red warning light blinks. The coolant temperature is too high or the coolant level is too low.

Do not continue driving! Engine damage could result.

1. Stop the vehicle as soon as it is safe to do so ⇒ Parking.

2. Stop the engine.

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3. Allow the engine to cool.

4. Check the engine coolant level on the Coolant expansion tank ⇒ Checking and ﬁlling engine coolant .

5. If the warning light does not turn off, do not continue driving or let the engine run, even if the engine coolant is at the correct level.

6. Contact an authorized Volkswagen dealer or authorized Volkswagen Service Facility for assistance.

Brake ﬂuid

Introduction

Brake ﬂuid absorbs moisture from the air over the course of time. Too much water in the brake ﬂuid causes damage to the brake system. Water lowers the boiling

point of the brake ﬂuid. If the water content in the brake ﬂuid is too high, vapor lock may form in the brake system during heavy braking and full braking. Vapor lock

reduces the braking efﬁciency, increases the braking distance considerably, and can lead to a total failure of the brake system. Your own safety and the safety of

others on the road depends on your brake system functioning correctly at all times.

WARNING

Brake ﬂuid is poisonous. Contact with brake ﬂuid, especially swallowing brake ﬂuid, may result in serious or fatal injuries.

If you swallow brake ﬂuid, seek urgent medical help.

If you have health problems after working with brake ﬂuid, seek medical help.

Always store brake ﬂuid out of the reach of children and only within the sealed original container.

Never use empty food cans, bottles, or other containers to store brake ﬂuid, because someone could drink the brake ﬂuid by mistake.

Avoid regular contact with brake ﬂuid to prevent damage to your skin.

Protect your skin, face, and particularly your eyes when working with brake ﬂuid.

Do not eat, drink, or smoke when working with brake ﬂuid.

Wash your skin with soap and water after working with brake ﬂuid.

NOTICE

Spilled or leaking brake ﬂuid will damage the vehicle's surfaces. The vehicle's paint, plastic parts, and tires may be damaged.

Immediately wipe up any spilled or leaking brake ﬂuid that comes into contact with vehicle components.

Then rinse all vehicle parts with plenty of water.

Brake ﬂuid can pollute the environment. Collect spilled brake ﬂuid and dispose of it correctly.

Brake ﬂuid speciﬁcations

Please read the introductory information and heed the Warnings and Notice ⇒

Safety precautions for working in the engine compartment .

Volkswagen has developed a special brake ﬂuid that is optimized for the vehicle's brake system. For optimum performance of the brake system, Volkswagen

recommends only using brake ﬂuid that complies with the VW standard 501 14.

Before using brake ﬂuid, check that the brake ﬂuid speciﬁcation on the bottle matches the vehicle requirements.

Brake ﬂuid that complies with the VW standard 501 14 can be obtained from an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

If brake ﬂuid that meets this speciﬁcation is not available and another high-quality brake ﬂuid must therefore be used, brake ﬂuid that complies with the speciﬁcation

DIN ISO 4925 or the US Standard FMVSS 116 DOT 4 CLASS 6 can be used.

Not all brake ﬂuids that comply with the requirements of DIN ISO 4925 or US Standard FMVSS 116 DOT 4 CLASS 6 have the same chemical composition. Some

of these brake ﬂuids can contain chemicals that can destroy or damage components of the vehicle brake system over time.

To help ensure that the brake system functions correctly over the long term, Volkswagen recommends using a brake ﬂuid that expressly conforms to the

VW standard 501 14.

Brake ﬂuid that complies with the VW standard 501 14 meets the requirements of DIN ISO 4925 or the US Standard FMVSS 116 DOT 4 CLASS 6.

Checking the Brake Fluid

Please read the introductory information and heed the Warnings and Notice ⇒

Safety precautions for working in the engine compartment .

Preparations

1. Parking the vehicle on a level, secure surface.

2. Open the hood.

Checking the Brake Fluid Level

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Fig. 208 In the engine compartment: cap on the brake fluid reservoir.

The brake ﬂuid reservoir can be recognized by its cap ﬁg. 208.

The brake ﬂuid level cannot be checked precisely on all models because the hood or engine components may obstruct the view of the ﬂuid level in the reservoir. If

you cannot read the brake ﬂuid level clearly, see an authorized Volkswagen dealer or authorized Volkswagen Service Facility for assistance. Volkswagen

recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

The brake ﬂuid level must always be between the MIN and MAX markings on the brake ﬂuid reservoir

⇒

.

The brake ﬂuid level decreases slightly when the vehicle is being used as the brake pads wear and the brakes automatically adjust themselves.

WARNING

A low brake ﬂuid level or unsuitable brake ﬂuid may cause the brakes to fail or may reduce braking efﬁciency. Accidents and serious or fatal injuries could result.

Have the brake system and brake ﬂuid level checked regularly.

Be sure to use the correct brake ﬂuid.

Only use brake ﬂuid that expressly complies with the VW standard 501 14.

If brake ﬂuid that complies with the VW standard 501 14 is not available, in exceptions only use a high-quality brake ﬂuid that complies with

DIN ISO 4925 CLASS 6 or US standard FMVSS 116 DOT 4.

Changing brake ﬂuid

Have the brake ﬂuid changed regularly. An authorized Volkswagen dealer or authorized Volkswagen Service Facility can provide information about the interval for

changing the vehicle brake ﬂuid. Only have brake ﬂuid added that meets the required speciﬁcations. Volkswagen recommends contacting an authorized

Volkswagen dealer or authorized Volkswagen Service Facility.

WARNING

Vapor lock may occur in old brake ﬂuid due to absorbed moisture during hard braking, reducing braking efﬁciency and potentially causing total brake failure.

Accidents and serious or fatal injuries could result.

Have the brake ﬂuid changed regularly.

Only have new brake ﬂuid added.

Troubleshooting

Please read the introductory information and heed the Warnings and Notice ⇒

Safety precautions for working in the engine compartment .

Brake ﬂuid level

The red warning light turns on. The brake ﬂuid level is too low.

Do not continue driving! This could result in the brake failing.

1. Stop the vehicle immediately as soon as it is safe to do so ⇒ Parking.

2. Check the brake ﬂuid level.

338

3. If the brake ﬂuid level is too low, contact an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

12 V vehicle battery

Introduction

The 12-volt vehicle battery is a component of the electrical system and serves to supply energy to the vehicle. During maintenance procedures, the 12 V vehicle

battery is checked and replaced if necessary.

You may only perform procedures on the electrical system yourself if you are familiar with the necessary activities and the general safety precautions, and if the

correct operating equipment and ﬂuids and suitable tools are available. Work performed incorrectly can result in serious injuries ⇒

. Have all work performed by

suitably qualiﬁed professionals. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Information about warning and indicator lights can be found in the troubleshooting section at the end of the chapter ⇒ Troubleshooting.

Battery switch-off in an accident with triggering of the airbag

In vehicles with a 12 V vehicle battery in their vehicle interior or luggage compartment, the electrical connection to the 12 V vehicle battery is pyrotechnically

disconnected in an accident with airbag deployment. This prevents a short circuit. For more information on the installation location of the vehicle battery, refer to

section → page , Checking the 12 V vehicle battery acid level .

Detailed warnings for the 12 V vehicle battery

Always wear eye protection.

are forbidden. A highly explosive mixture of gases forms when charging the 12 V vehicle battery.

V vehicle battery. Always heed the Owner's Manual.

Battery acid is highly corrosive. Always wear protective gloves and eye protection.

Fire, sparks, open flame, and smoking

Always keep children away from battery acid and the 12

WARNING

Performing work on the 12 V vehicle battery and the electrical system can cause serious injuries, ﬁres, or electric shocks. This could result in serious injuries.

Always read and follow the warning information on the 12 V vehicle battery.

Before performing any work on the 12 V vehicle battery, switch off the ignition and all electrical equipment and disconnect the 12 V battery negative

cable.

Always keep children away from battery electrolyte and the 12 V vehicle battery.

When handling 12 V vehicle batteries, always protect your hands, arms, and face from spraying battery acid.

Always wear eye protection and safety gloves.

Never short circuit the battery terminals.

WARNING

When work is carried out on the 12 V vehicle battery, a highly explosive, ﬂammable gas mixture builds up. Sparks could form and ignite the ﬂammable gas that

is released by the 12 V vehicle battery. This can result in serious injury or death.

Always keep ﬁres, sparks, open ﬂames, and lit cigarettes far away from the 12 V vehicle battery.

Avoid creating sparks when working with wires and electrical equipment or when discharging static electricity.

WARNING

A drained 12 V vehicle battery can freeze at temperatures around 0 °C (+32 °F). Acid may leak out of 12 V vehicle batteries that have frozen and thawed again

and cause damage to the vehicle in the long run.

Never charge a frozen or thawed 12 V vehicle battery.

Always replace the 12 V vehicle battery if it freezes.

WARNING

California Proposition 65 Warning.

This product can expose you to chemicals including lead and lead components, which are known to the State of California to cause cancer and birth

defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov.

NOTICE

UV rays can damage the battery housing.

Do not expose the 12 V vehicle battery to direct sunlight for a long period of time.

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NOTICE

The 12 V vehicle battery could freeze and be destroyed.

Protect the 12 V vehicle battery against freezing temperatures if the vehicle is parked for long periods of time.

After starting the engine when the 12-volt vehicle battery is severely drained or when it has been replaced or jump-started, the system settings (time, date,

personal convenience settings, and programming) and user profiles may be changed or erased. Check and correct the settings after the 12 V vehicle battery is

sufficiently recharged.

Checking the 12 V vehicle battery acid level

Please read the introductory information and heed the Warnings and Notice ⇒

Safety precautions for working in the engine compartment .

Check the acid level of the 12 V vehicle battery regularly if mileage is high, in countries with warm climates, or if the 12 V vehicle battery is old. Otherwise, the 12 V

vehicle battery is maintenance-free.

12 V vehicle battery location

The 12 V vehicle battery is located in the engine compartment.

Preparations

1. Prepare the vehicle for work in the engine compartment.

2. Wear suitable eye protection and safety gloves.

3. Open the hood.

Checking the battery acid level

WARNING

Battery acid is corrosive. Contact with battery acid, especially swallowing battery acid, can result in serious burns.

Never open a 12 V vehicle battery.

Never tilt the 12 V vehicle battery. Acid can leak out of the vent openings.

Protect your skin, face, and particularly your eyes when working with the 12 V vehicle battery.

Do not eat, drink, or smoke when working on the 12 V vehicle battery.

Wash your skin with soap and water after working on the 12 V vehicle battery.

If acid comes into contact with your skin or hair, remove all soiled or wet clothing and wash your skin and hair with water. Consult a doctor.

If acid comes into contact with your eyes, rinse the affected area carefully with water for several minutes. Then consult a doctor immediately.

If you swallow battery acid, immediately drink plenty of water and swallow activated charcoal. Consult a doctor immediately.

If you have inhaled acid vapors, leave the hazard area and breathe in fresh air. Consult a doctor immediately.

WARNING

When work is carried out on the 12 V vehicle battery, a highly explosive, ﬂammable gas mixture builds up. Sparks could form and ignite the ﬂammable gas that

is released by the 12 V vehicle battery. This can result in serious injury or death.

Always keep ﬁres, sparks, open ﬂames, and lit cigarettes far away from the 12 V vehicle battery.

Avoid creating sparks when working with wires and electrical equipment or when discharging static electricity.

Depending on the vehicle equipment, an additional bracket must be removed to see the viewing window. An additional tool that is not available in the vehicle tool ki

is required to do this. Always have the acid level of the 12 V vehicle battery checked by an authorized Volkswagen dealer or authorized Volkswagen Service Facility

Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

340

Fig. 209 On the top of the 12 V vehicle battery: Window (general example).

Make sure there is enough lighting to clearly see the color indicator in the circular window on the top of the 12 V vehicle battery ﬁg. 209.

The color indicator in the circular window changes depending on the acid level in the 12 V vehicle battery.

Light yellow or colorless The 12 V vehicle battery acid level is too low. Have the 12 V vehicle battery replaced by an authorized Volkswagen dealer or authorized

Volkswagen Service Facility. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Black

The 12 V vehicle battery acid level is OK.

The acid level of 12 V vehicle batteries labeled AGM cannot be checked for technical reasons. Suitably qualiﬁed professionals can inspect the battery. Volkswagen

recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Charging, replacing, disconnecting, or connecting the 12 V vehicle battery

Please read the introductory information and heed the Warnings and Notice ⇒

Safety precautions for working in the engine compartment .

If you suspect that the 12 V vehicle battery is damaged or malfunctioning, see suitably qualiﬁed professionals to have the 12 V vehicle battery checked. Volkswagen

recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Charging the 12 V vehicle battery

The 12 V vehicle battery should be charged by suitably qualiﬁed professionals because the 12 V vehicle battery that is installed at the factory requires a charging

process where the voltage is limited ⇒

. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Replacing the 12 V vehicle battery

The 12 V vehicle battery is designed to ﬁt the location where it is installed and is equipped with safety features. If a 12 V vehicle battery needs to be replaced, have

the replacement part ﬁtted by qualiﬁed professionals. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service

Facility. Check with qualiﬁed professionals to ﬁnd out the component information regarding size and the required maintenance, performance, and safety features.

They must possess the necessary technical documentation and equipment. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized

Volkswagen Service Facility. The vent opening on the 12 V vehicle battery must always be located on the negative terminal side. The vent opening on the positive

terminal side must always be sealed ⇒

.

Only use a maintenance-free 12 V vehicle battery that conforms to the TL 825 06 and VW 7 50 73 standards. These standards must be from October 2014 or later.

Always have the 12 V vehicle battery replaced by qualiﬁed professionals because the vehicle electronics must be adapted as part of the replacement. Only qualiﬁed

professionals have the necessary equipment to perform the adaptation and have access to the correct replacement batteries.

Disconnecting the 12 V vehicle battery

If the 12 V vehicle battery must be disconnected from the vehicle electrical system, note the following:

1. Switch off all electrical consumers.

2. Unlock the vehicle before disconnecting the battery. Otherwise, the anti-theft alarm system will be triggered.

3. Disconnect the negative cable ﬁrst, and then the positive cable ⇒

.

Connecting the 12 V vehicle battery

If the 12 V vehicle battery must be connected to the vehicle electrical system, note the following:

1. Switch off all electrical consumers.

2. Connect the positive cable ﬁrst, and then the negative cable ⇒

.

341

Various indicator lights may turn on after connecting the 12 V vehicle battery and switching the ignition on. They will turn off after driving a short distance at a speed

of approx. 15 to 20 km/h (approx. 10 to 12 mph). If the indicator lights light up and remain on, contact an authorized Volkswagen dealer or authorized Volkswagen

Service Facility and have the vehicle checked. Volkswagen recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

If the 12 V vehicle battery was disconnected for a long period of time, the next scheduled maintenance may not display correctly or it may not be calculated correctl

⇒ Service interval display. Follow the maximum permissible maintenance interval ⇒ Maintenance.

Vehicles with a starter button: If the ignition cannot be switched on after connecting the 12 V vehicle battery, carry out the following activities:

1. Lock and unlock the vehicle from the outside.

2. Try to switch the ignition on again.

3. If the ignition will not switch on, see an authorized Volkswagen dealer or authorized Volkswagen Service Facility for assistance.

Automatic equipment deactivation

If the ignition is switched on for a very long time when the engine is off or the parking light is switched on when parking for a very long time, the intelligent power

management cannot always prevent the 12 V vehicle battery from being drained.

If the 12 V vehicle battery is under a heavy load, the intelligent power management will automatically begin certain measures to prevent the 12 V vehicle battery

from draining.

The idle speed will be increased so that the alternator delivers more power.

If necessary, equipment that uses a lot of power will have its performance limited or will be switched off.

The power supply to the 12 V socket will be interrupted temporarily when the engine is started.

12 V Vehicle Battery Draining

If the battery is drained, it may not be possible to start the engine. The 12 V vehicle battery will be drained in the following situations:

If the vehicle is parked for long periods of time without running the engine, especially if the ignition is on.

If electrical equipment is used when the ignition is switched off.

WARNING

Use of a 12 V vehicle battery that does not have identical speciﬁcations and dimensions to the 12 V vehicle battery that was installed at the factory may cause

short circuits or ﬁre. This could result in serious or fatal injuries.

Always use a maintenance-free and leak-proof 12 V vehicle battery that has the same characteristics, speciﬁcations, and dimensions as the 12 V vehicle

battery that was installed at the factory.

WARNING

Fitting 12 V vehicle batteries incorrectly may cause short circuits or ﬁre. This could result in serious or fatal injuries.

Always attach the 12 V vehicle battery to the attachment points provided in the vehicle.

Replace all covers that are required for the vehicle back on the battery.

WARNING

A highly explosive mixture of hydrogen gas can form when charging the 12 V vehicle battery. Sparks or naked ﬂames could ignite the gas mixture. This could

cause serious burns.

Only charge 12 V vehicle batteries in well-ventilated areas.

Keep sparks and naked ﬂames away from the 12 V vehicle battery.

WARNING

A drained 12 V vehicle battery can freeze at temperatures around 0 °C (+32 °F). Acid may leak out of 12 V vehicle batteries that have frozen and thawed again

and cause damage to the vehicle in the long run.

Never charge a frozen or thawed 12 V vehicle battery.

Always replace the 12 V vehicle battery if it freezes.

WARNING

If the degassing tube is not attached to the 12 V vehicle battery correctly, the highly explosive gas mixture that builds up when the vehicle is running may enter

the vehicle interior. The ﬂammable gas could ignite and cause serious injuries or death.

342

For vehicles with the 12 V vehicle battery in the vehicle interior or luggage compartment, ensure that the degassing hose is connected to the 12 V vehicle

battery correctly. The degassing hose must always be connected to the negative terminal side of the 12-volt vehicle battery.

Always ensure that the opening on the positive terminal side of the 12 V vehicle battery is capped.

CAUTION

Cables that are connected incorrectly can cause a short circuit. This could damage the on-board electronics and result in serious injuries.

Connect the positive cable ﬁrst and then the negative cable.

NOTICE

If the 12 V vehicle battery is connected or disconnected when the ignition is switched on or the engine is running, this could damage the electrical system or

electronic components, resulting in electrical malfunctions.

Never connect or disconnect the 12 V vehicle battery when the ignition is on or the engine is running.

NOTICE

If accessories that provide power for charging the 12 V vehicle battery are connected to the 12 V socket, this could damage the electrical system or electronic

components, resulting in electrical malfunctions.

Never connect accessories that provide power, such as solar panels or battery chargers, to the 12 V socket in order to charge the 12 V vehicle battery.

12 V vehicle batteries can contain toxic substances such as sulfuric acid and lead. Dispose of 12 V vehicle batteries correctly.

Battery acid can pollute the environment. Collect spilled battery acid and dispose of it correctly.

Troubleshooting

Please read the introductory information and heed the Warnings and Notice ⇒

Safety precautions for working in the engine compartment .

12-volt power supply

The red warning light turns on. A message is shown in the instrument cluster display.

Do not continue driving! Possible failure of the electrical system.

1. Stop the vehicle immediately and park it safely.

2. Turn off electrical equipment that is not needed.

3. Switch the ignition off.

4. Contact an authorized Volkswagen dealer or authorized Volkswagen Service Facility for assistance.

If the red warning light comes on, the start-stop system is switched off. The start-stop system will only be automatically switched on again after the engine is

restarted.

12-volt power supply

The yellow indicator light turns on. A message is shown in the instrument cluster display.

Messages about the battery charge level of the 12 V vehicle battery.

1. Let the engine run so that the 12 V vehicle battery can be recharged.

2. If the message about the battery charge level of the 12 V vehicle battery does not turn off after a few minutes despite the measures having been taken, then

contact an authorized Volkswagen dealer or authorized Volkswagen Service Facility.

Messages about the 12 V power supply.

1. Contact an authorized Volkswagen dealer or authorized Volkswagen Service Facility for assistance.

If the yellow indicator light lights up, the start-stop system will not be able to start the engine. If the yellow indicator light has turned off, the 12 V vehicle battery has

sufﬁcient battery charge level to automatically restart the engine.

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Checking and filling for Your Volkswagen Tiguan 4 Door 2023

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