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Warning!
Each tire, including the spare (if provided), should be checked at least once a month when cold
and inflated to the inflation pressure recommended by the vehicle manufacturer on the Tire and
Loading Information placard on the driver’s door B-pillar or the tire inflation pressure label on the
inside of the fuel filler flap. If your vehicle has tires of a different size than the size indicated on
the Tire and Loading Information placard or the tire inflation pressure label, you should determine
the proper tire inflation pressure for those tires.
As an added safety feature, your vehicle has been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires are
significantly underinflated. Accordingly, when the low tire pressure telltale illuminates, you should
stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving
on a significantly underinflated tire causes the tire to overheat and can lead to tire failure.
Underinflation also reduces fuel efficiency and tire tread life, and may affect the vehicle’s handling
and stopping ability. Please note that the TPMS is not a substitute for proper tire maintenance,
and it is the driver’s responsibility to maintain correct tire pressure, even if underinflation has
not reached the level to trigger illumination of the TPMS low tire pressure telltale.
USA only:
Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the
system is not operating properly. The TPMS malfunction indicator is combined with the low tire
pressure telltale. When the system detects a malfunction, the telltale will flash for approximately
1 minute and then remain continuously illuminated. This sequence will continue upon subsequent
vehicle start-ups as long as the malfunction exists. When the malfunction indicator is illuminated,
the system may not be able to detect or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of reasons, including the installation of incompatible
replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning
properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels
on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to
continue to function properly.
Lamp in center console
Problem Possible causes/consequences and M Solutions
4 5
The passenger front air
bag off indicator lamp
illuminates and
remains illuminated
with the weight of a
typical adult or
someone larger than a
small individual on the
passenger seat.
The system is malfunctioning.
X
Have the system checked as soon as possible at an authorized
Mercedes-Benz Center.
X
Read and observe messages in the multifunction display and
follow corrective steps (Y page 364).
396
What to do if...
Practical hints
BA 197 USA, CA Edition A 2011; 1; 27, en-US
hereepe Version: 3.0.3.5
2010-03-24T15:31:10+01:00 - Seite 396