Mercedes-Benz 2008 R 320 CDI 4MATIC Operator's Manual page 443

Practical hints
What to do if ...
Display message
Check tires ,
then restart
Run Flat Indicator.
Run Flat Indicator
Inoperative
Tire Pressure
Check Tires
Tire pressure
displayed after
driving for
a few minutes .
442
Possible cause/consequence
There was a warning message about
a loss in the tire inflation pressure
and the Run Flat Indicator has not
been reactivated yet.
Run Flat Indicator is malfunctioning.
The Run Flat Indicator indicates that
the pressure is too low in one or more
tires.
Vehicles with Advanced TPMS*:
The tire inflation pressure is being
checked.
Possible solution
Make sure that the correct tire inflation pressure is set
for each tire.
Then restart the Run Flat Indicator ( page 375).
Have the Run Flat Indicator checked by an authorized
Mercedes-Benz Light Truck Center.
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers. Observe the traffic
situation around you.
Check and adjust tire inflation pressure as required
( page 373).
If necessary, replace the wheel ( page 492).
Restart the Run Flat Indicator after adjusting the tire
inflation pressure values ( page 375).
Drive the vehicle for a few minutes.