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309
Operation
Tires and wheels
̈ Switch on the ignition (୴ page 34).
̈ Press button è or ÿ on the mul-
tifunction steering wheel repeatedly
until the standard display menu
appears in the multifunction display
(
୴ page 143).
̈ Press button j or k repeatedly
until the current tire inflation pressures
for each tire appear in the multifunc-
tion display.
i
After you have reactivated the tire infla-
tion pressure monitor, the current tire
inflation pressures will only be shown
after a few minutes’ driving time.
During this time, you will see the follow-
ing message in the multifunction dis-
play:
TIRE PRES. DISPLAY
APPEARS AFTER
DRIVING A FEW
MINUTES
i
Possible differences between the
readings of a tire inflation pressure
gauge of an air hose, e.g. gas station
equipment, and the vehicle’s control
system can occur. The readings issued
by the control system are more pre-
cise.
i
You can select the unit of measure
(Bar/Psi) used for the tire inflation
pressure by changing the setting in the
control system (
୴ page 164).
Warning! G
When the tire inflation pressure monitoring
system warning light is lit, one or more of
your tires is significantly under-inflated. You
should stop and check your tires as soon as
possible, and inflate them to the proper tire
inflation pressure as indicated on the vehi-
cle’s tire information placard. Driving on a
significantly under-inflated tire causes the
tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency
and tire tread life, and may affect the vehi-
cle’s handling and stopping ability. Each tire,
including the spare, should be checked
monthly when cold and set to the recom-
mended tire inflation pressure as specified
in the vehicle placard and owner’s manual.