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Practical hints
What to do if …
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Please note:
Conven. functions
available again
On-board voltage is sufficient; the
consumers will switch on again.
Run Flat Indicator
inactive
Run Flat Indicator* is
malfunctioning.
̈ Have the Run Flat Indicator* checked by an
authorized Mercedes-Benz Center.
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 pres-
sure 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 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 313).
̈ If necessary, change the wheel (୴ page 423).
̈ Reactivate the Run Flat Indicator* after adjust-
ing the tire inflation pressure values
(
୴ page 315).