#
Make sure the wheel bolts or wheel
nuts are tightened to the prescribed
tightening torque.
#
If you are not sure, do not move the
vehicle. Consult a qualified specialist
workshop and have the tightening tor‐
que checked immediately.
#
Check the tire pressure of the newly moun‐
ted wheel and adjust accordingly.
#
Vehicles with tire pressure loss warning
system: Restart the tire pressure loss warn‐
ing system (/ page 521).
#
Vehicles with a tire pressure monitoring
system: Restart the tire pressure monitoring
system (/ page 520).
Exception: the new wheel is an emergency
spare wheel.
Emergency spare wheel
Notes on the emergency spare wheel
&
WARNING Risk of accident caused by
incorrect wheel and tire dimensions
The wheel or tire size and the tire type of the
emergency spare wheel or spare wheel and
the wheel to be replaced may differ. Mount‐
ing an emergency spare wheel/spare wheel
may severely impair the driving characteris‐
tics.
To prevent hazardous situations:
#
Adapt your driving style accordingly and
drive carefully.
#
Never mount more than one emergency
spare wheel or spare wheel that differs
in size.
#
Only use an emergency spare wheel or
spare wheel of a different size briefly.
#
Do not switch off ESP
®
.
#
>Have the emergency spare wheel or
spare wheel of a different size replaced
at the nearest qualified specialist work‐
shop. The new wheel must have the
correct dimensions.
Check the tire pressure of the emergency spare
wheel installed. Correct the pressure as neces‐
sary.
The maximum permissible speed with an emer‐
gency spare wheel installed is 50 mph
(80 km/h).
Do not install the emergency spare wheel with
snow chains.
Replace the emergency spare wheel after six
years at the latest, regardless of wear.
%
Vehicles with a tire pressure monitoring
system: If an emergency spare wheel is
installed the tire pressure monitoring system
cannot function reliably. For a few minutes
after an emergency spare wheel is installed,
the system may still display the tire pressure
of the removed wheel. Only restart the sys‐
tem again when the emergency spare wheel
has been replaced with a new wheel.
544
Wheels and tires
