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Practical hints
What to do if …?
Display Possible cause/consequence Possible solution
Shift to P or N
to start engine
You have attempted to start the engine
while the automatic transmission was set to
position R or D.
̈ Shift the automatic transmission to P or N (୴ page 389).
Tire pressure monitor
inoperative
The Advanced TPMS or a wheel sensor is
malfunctioning.
̈ Have the Advanced TPMS checked by an authorized
Mercedes-Benz Center.
Tire pressure monitor
inoperative
No wheel sensors
The Advanced TPMS is deactivated because
wheels without proper sensors were in-
stalled.
̈ Have the wheel sensors installed by an authorized
Mercedes-Benz Center.
As soon as all wheels with sensors have been mounted, the
Advanced TPMS is switched back on after driving for several
minutes.
Tire pressure monitor
currently unavailable
The Advanced TPMS is unable to monitor
the tire inflation pressure due to:
ț a nearby radio interference source
ț the on-board voltage is too low
ț excessive wheel sensor temperatures
As soon as the causes for the malfunction are no longer present,
the Advanced TPMS automatically becomes active again after a
few minutes driving.
Warning! G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle.
Continued driving with a flat tire will cause
excessive heat build-up and possibly a fire.