Get Wheels and tyres -> Emergency spare wheel Guide for Mercedes C Class 4 Door 2023

Wheels and tyres

667

Lowering the vehicle aꢀer a wheel change

Emergency spare wheel

Notes on the emergency spare wheel

WARNING Risk of accident due to incor-

rect tightening torque

Requirements

The new wheel has been ﬁtted (/ page 665).

The wheels could come loose if the wheel

bolts or wheel nuts are not tightened to the

prescribed torque.

WARNING Risk of accident caused by

incorrect wheel and tyre dimensions

To lower the vehicle: place the ratchet onto

the hexagon nut of the jack so that the letters

"AB" are visible and turn anti-clockwise.

The wheel or tyre size and the tyre type of the

emergency spare wheel or spare wheel and

the wheel to be replaced may diﬀer. The emer-

gency spare wheel or spare wheel can signiﬁ-

cantly impair driving characteristics of the

vehicle.

Ensure that the wheel bolts or wheel

nuts are tightened to the prescribed

tightening torque.

If you are not sure, do not move the vehi-

cle. Contact a qualiﬁed specialist work-

shop and have the tightening torque

checked immediately.

To prevent hazardous situations:

Drive carefully.

Check the tyre pressure of the newly ﬁtted

Never ﬁt more than one emergency

wheel and adjust it if necessary.

spare wheel or spare wheel that diﬀers

The following does not apply if the new wheel

is an emergency spare wheel.

Vehicles with a tyre pressure monitoring sys-

tem: restart the tyre pressure monitoring sys-

tem (/ page 657).

in size.

Only use an emergency spare wheel or

spare wheel brieﬂy.

Do not deactivate ESP^®.

Have the emergency spare wheel or

Tighten the wheel bolts evenly in a diagonal

pattern in the order indicated 1 to 5 with

an initial maximum force of 80 Nm.

Tighten the wheel bolts evenly in a diagonal

pattern in the order indicated 1 to 5 with

the speciﬁed tightening torque of 150 Nm.

spare wheel of a diﬀerent size replaced

at the nearest qualiﬁed specialist work-

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Wheels and tyres

668

tion reliably. For a few minutes aꢀer an emer-

gency spare wheel is ﬁtted, the system may

still display the tyre pressure of the removed

wheel. Only restart the system again when the

emergency spare wheel has been replaced

with a new wheel.

Requirements:

shop. The new wheel must have the cor-

rect dimensions.

The emergency spare wheel has been ﬁtted

correctly. (/ page 662)

The emergency spare wheel is secured in the

emergency spare wheel bag in the boot.

Observe the following notes on ﬁtting an emer-

gency spare wheel:

Comply with the manufacturer's safety notes

on the sticker of the emergency spare wheel

and on the tyre inﬂation compressor.

Be sure to also observe the following further rela-

ted subjects:

Remove the sticker with the inscription

80 km/h from the tyre inﬂation compressor

and aﬃx it to the instrument cluster within the

driver's ﬁeld of vision.

The maximum permissible speed with an

emergency spare wheel ﬁtted is 80 km/h.

Do not ﬁt the emergency spare wheel with

snow chains.

Replace the emergency spare wheel aꢀer six

years at the latest, regardless of wear.

Notes on tyre pressure (/ page 654)

Tyre pressure table (/ page 655)

Remove the tyre inﬂation compressor from the

stowage space under the boot ﬂoor.

(/ page 61)

Notes on ﬁtting tyres (/ page 657)

Fitting an emergency spare wheel

(/ page 662)

Use the wheel bolts that are included with the

emergency spare wheel.

Inﬂating the emergency spare wheel

Check the tyre pressure of the emergency

spare wheel ﬁtted. Correct the pressure as

NOTE Overheating due to the tyre inﬂation

compressor running too long

necessary.

The speciﬁed tyre pressure is stated on the

Do not run the tyre inﬂation compressor

for longer than ten minutes without inter-

ruption.

label of the emergency spare wheel.

Vehicles with a tyre pressure monitoring sys-

tem: if an emergency spare wheel is ﬁtted, the

tyre pressure monitoring system cannot func-

F206 0105 02

Wheels and tyres

669

Pull ﬁller hose 1 and plug 3 out of the tyre

inﬂation compressor housing.

Insert plug 7 of ﬁller hose 1 in the socket

on the tyre inﬂation compressor and then turn

it until plug 7 engages.

Unscrew the cap from the valve on the emer-

gency spare wheel.

Screw union nut 2 of ﬁller hose 1 onto the

valve.

Make sure on and oﬀ switch 4 of the tyre

inﬂation compressor is set to 0.

Insert plug 3 in a socket in your vehicle.

Cigarette lighter socket

Press on/oﬀ switch 4 on the tyre inﬂation

compressor to I.

The tyre inﬂation compressor is switched on.

The tyre is inﬂated. The tyre pressure is shown

on manometer 5.

Stow ﬁller hose 1 and plug 3 in the lower

section of the tyre inﬂation compressor hous-

ing.

Stow the tyre inﬂation compressor in the vehi-

cle.

Pump the tyre to the speciﬁed tyre pressure.

The speciﬁed tyre pressure is stated on the

label of the emergency spare wheel.

When the speciﬁed tyre pressure has been

reached, press on/oﬀ switch 4 on the tyre

inﬂation compressor to 0.

The tyre inﬂation compressor is switched oﬀ.

Press the start/stop button to switch oﬀ the

power supply.

If the tyre pressure is higher than the speciﬁed

pressure, press pressure release valve button

6 until the correct tyre pressure has been

reached.

Unscrew union nut 2 of ﬁller hose 1 from

the valve.

12 V socket (/ page 215)

Observe the notes on the cigarette lighter in

the Digital Owner's Manual

Observe the notes on sockets (/ page 215).

Press the start/stop button once to switch on

the power supply (/ page 260).

Screw the valve cap of the emergency spare

wheel onto the valve again.

F206 0105 02

Wheels and tyres -> Emergency spare wheel for Your Mercedes C Class 4 Door 2023

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