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Practical hints
What to do if …?
Display Possible cause/consequence Possible solution
PRE-SAFE
inoperative
See Oper. Manual
PRE-SAFE
®
itself has failed. All other occu-
pant safety systems, such as the air bags,
are still available.
̈ Contact an authorized Mercedes-Benz Center as soon as pos-
sible.
Radar sensor
deactivated
See Oper. Manual
You attempt to activate DISTRONIC Plus*,
Park Assist* or PRE-SAFE
®
Brake* even
though you have switched off the radar sen-
sors* on the vehicle.
̈ Check if the radar sensors* may be switched on (୴ page 282).
̈ Switch on the radar sensors* using the instrument cluster
control system.
Check tire pressures
and then restart
Run Flat Indicator
(Canada only)
There was a warning message about a loss
in tire inflation pressure and the Run Flat In-
dicator has not been reactivated yet.
̈ Check and adjust tire inflation pressure as required
(
୴ page 560).
̈ Then reactivate the Run Flat Indicator (୴ page 566).
Run Flat Indicator
inoperative
(Canada only)
The Run Flat Indicator is malfunctioning. ̈ Contact an authorized Mercedes-Benz dealer as soon as pos-
sible.
Service X
due
Service X must be carried out (୴ page 582). ̈ Have the maintenance service carried out by an authorized
Mercedes-Benz Center.
Service X exceeded
by X days
by XXX mls (km)
Service X must be carried within the next ...
or before you have driven ... miles (kilome-
ters) (
୴ page 582).
̈ Have the maintenance service carried out by an authorized
Mercedes-Benz Center as soon as possible.