Mercedes-Benz 2007 E -Class Wagon Operator's Manual page 409

Practical hints
What to do if ...
Display message
Tire pressure
monitor
currently unavailable
Warning!
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. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.
408
Possible cause/consequence
The Advanced TPMS* is unable to monitor
the tire pressure due to
a nearby radio interference source.
excessive wheel sensor temperatures.
G
Possible solution
As soon as the causes for the malfunction are no longer
present, the Advanced TPMS* automatically becomes ac-
tive again after a few minutes driving.