623 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
PRE-SAFE
inoperative
See Oper. ManualPRE-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. ManualYou 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 (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
(
page 560).
Then reactivate the Run Flat Indicator (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
dueService X must be carried out (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) (
page 582).
Have the maintenance service carried out by an authorized
Mercedes-Benz Center as soon as possible.
624 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Shift to P or N
to start engineYou have attempted to start the engine
while the automatic transmission was set to
position R or D.Shift the automatic transmission to P or N (page 399).
Tire pressure
Check tiresThe pressure has fallen significantly in one
or more tires.Carefully bring the vehicle to a halt, avoiding abrupt steering
and braking maneuvers. Observe the traffic situation around
you.
Check and adjust tire inflation pressure as required
(
page 560).
If necessary, change the wheel (page 686).
Reactivate the Run Flat Indicator after adjusting the tire infla-
tion pressure values (
page 566).
Tire pressure monitor
inoperativeThe Advanced TPMS* or a wheel sensor is
malfunctioning.Have the Advanced TPMS* checked by an authorized
Mercedes-Benz Center.
Warning!G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.
632 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Service
See Oper. ManualS 600 and S 65 AMG only:
The brake system sensors are malfunction-
ing. The brake system continues to function
normally with full brake force boost.Continue driving with added caution.
Have the system checked at an authorized
Mercedes-Benz Center as soon as possible.
(USA only)
(Canada only)
Brake wearThe brake pads have reached their wear
limit.Have the brake pads replaced as soon as
possible.
!Brake pad thickness must be visually
checked by a qualified technician at the intervals
specified in the Maintenance Booklet.
745 Index
J
Jack 669, 687
Jacking up the vehicle 687
Jump starting 697
K
Key, Mechanical 671
Loss of 340
Key, SmartKey 332
Battery check lamp 332, 334
Factory setting 333
Global locking and unlocking 333
Lock button 332
Locking and unlocking 332
Loss of 340
Messages in display 651
Opening button for trunk 332
Panic button 65
Remote control 332
Restoring to factory setting 334
Selective setting 334
Starting the engine 390
Switching on ignition with 344
Turning off engine 397
Unlock button 332Key, SmartKey with KEYLESS-GO* 335
Battery check lamp 335, 339
Closing, Trunk 479
Factory setting 338
Global locking and unlocking 338
Important notes on using
KEYLESS-GO* 336
Lock button 335
Locking and unlocking 335
Loss of 340
Messages in display 650
Opening button for trunk 335
Panic button 65
Remote control 335
Restoring to factory setting 340
Selective setting 339
Starting the engine 390
Switching on ignition with 346
Turning off engine 398
Unlock button 335
Kickdown 406
Kilopascal 577L
Labels 712
Certification 712
Emission control information 713
Tire and Loading Information 554
Vacuum line routing diagram 713
Lamp bulbs, exterior 678
Lamps, exterior
Front 679
Light sensor 654
Rear 679
Lamps, indicator and warning
ABS 29, 66, 598
Air bag Off 46
Battery check lamp (SmartKey with
KEYLESS-GO* 339
Battery check lamp (SmartKey) 334
Brake warning lamp 29
Brakes 599
Combination low tire pressure* mal-
function telltale 29, 608
Distance warning lamp* 29, 604
DISTRONIC Plus* 29, 427, 604
Electronic parking brake 29, 600
Engine diagnostics 29, 602
Engine malfunction 29, 602
