623 practical hints – Mercedes-Benz S-Class 2008 Owners Manual User Manual
Page 624

623
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 (
̈
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
(
̈
Then reactivate the Run Flat Indicator (
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 (
̈
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) (
̈
Have the maintenance service carried out by an authorized
Mercedes-Benz Center as soon as possible.