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Practical hints
What to do if …
Left display Right display Possible cause/consequence Possible solution
Run Flat
Indicator
inactive
The Run Flat Indicator is
malfunctioning.
̈ Have the Run Flat Indicator checked by an
authorized Mercedes-Benz Center.
Check tires
Then reactivate
There was a warning message
about a loss in the tire inflation
pressure and the Run Flat Indica-
tor 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
unavailable
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 pres.
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 293).
̈ If necessary, change the wheel
(
୴ page 399).
̈ Reactivate the Run Flat Indicator after ad-
justing the tire inflation pressure values
(
୴ page 295).