Get Checking and filling -> Engine coolant Guide for Volkswagen Tiguan 4 Door 2023

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.

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.

336

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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Checking and filling -> Engine coolant for Your Volkswagen Tiguan 4 Door 2023

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