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Practical hints
What to do if …
Display message Possible cause/consequence Possible solution
Run Flat Indicator
Inoperative
Run Flat Indicator is malfunctioning. ̈ Have the Run Flat Indicator checked by an au-
thorized Mercedes-Benz Center.
Check tires,
then restart
Run Flat Indicator
There was a warning message about
a loss in the tire inflation pressure
and the Run Flat Indicator has not
been reactivated yet.
̈ Make sure that the correct tire inflation pres-
sure is set for each tire.
̈ Then reactivate the Run Flat Indicator.
Run Flat Indicator
Inoperative
The Run Flat Indicator has been
switched off due to an error.
̈ Have the Run Flat Indicator checked by an
authorized Mercedes-Benz Center.
Tire Pressure
Check Tires
The Run Flat Indicator indicates that
the pressure is too low in one or
more tires.
̈ Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers. Ob-
serve the traffic situation around you.
̈ Check and adjust tire inflation pressure as
required (
୴ page 303).
̈ If necessary, change the wheel (୴ page 412).
̈ Reactivate the Run Flat Indicator after adjust-
ing the tire inflation pressure values
(
୴ page 305).
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. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.