Mercedes-Benz S-Class 2008 COMAND Manual - Manual (Page 659)

658
Practical hints
What to do if …?
Display Possible cause/consequence Possible solution
Tire Pressure Monitor
Inoperative
No Wheel Sensors The Advanced TPMS is deactivated be-
cause wheels without proper sensors were
installed. ̈ 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 of driving.