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Practical hints
What to do if …
Display message Possible cause/consequence Possible solution
Check tires
Then reactivate
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 pressure is set
for each tire.
̈ Then reactivate the Run Flat Indicator.
Run Flat Indicator
inactive
Run Flat Indicator is malfunctioning. ̈ Have the Run Flat Indicator checked by an authorized
Mercedes-Benz Light Truck Center.
Run Flat Indicator
unavailable
The Run Flat Indicator has been
switched off due to an error.
̈ Have the Run Flat Indicator checked by an authorized
Mercedes-Benz Light Truck 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. Observe the traffic sit-
uation around you.
̈ Check and adjust tire inflation pressure as required
(
୴ page 365).
̈ If necessary, change the wheel (୴ page 478).
̈ Reactivate the Run Flat Indicator after adjusting the tire
inflation pressure values (
୴ page 365).