2008 MERCEDES-BENZ CLS63AMG Owner's Manual

368 Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
PGear Selector Lever
In P PositionYou have tried to start the engine
with the KEYLESS-GO* start/stop
button with the gear selector lever
not in positionP.Place the gear selector lever in positionP.
You have tried to turn off the engine
with the KEYLESS-GO* start/stop
button with the gear selector lever
not in positionP.
P/NPlease Shift To
N or PYou have tried to start the engine
with the KEYLESS-GO* start/stop
button while the gear selector lever
was in positionR orD.Place the gear selector lever in positionP
orN. Make sure the brake pedal is depressed.
PRE-SAFEInoperative
See Operator’s ManualPRE-SAFE® itself has failed. All other
occupant safety systems, such as
the air bags, are still available.Contact an authorized Mercedes-Benz Center
as soon as possible.
If ESP® and PRE-SAFE® malfunction
messages are displayed simulta-
neously, PRE-SAFE
® has been deac-
tivated as a result of these
malfunctions. All other occupant
safety systems, such as the air bags,
are still available.

369 Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
Run Flat Indicator
InoperativeRun Flat Indicator is malfunctioning.Have the Run Flat Indicator checked by an au-
thorized Mercedes-Benz Center.
Check tires,
then restart
Run Flat IndicatorThere 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
InoperativeThe 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 TiresThe 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 (
page 303).
If necessary, change the wheel (page 412).
Reactivate the Run Flat Indicator after adjust-
ing the tire inflation pressure values
(
page 305).
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. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.

370 Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
Tire pressure
is only displayed
after driving for
a few minutes
Vehicles with Advanced TPMS*:
The tire inflation pressure is being
checked.Drive the vehicle for a few minutes.
Tire Pressure
Monitor
Currently UnavailableThe TPMS or Advanced TPMS* is un-
able to monitor the tire pressure due
to a nearby radio interference
source.As soon as the causes for the malfunction are
no longer present, the Advanced TPMS* auto-
matically becomes active again after a few
minutes driving.
Tire Pressure
Monitor
InoperativeThe TPMS or Advanced TPMS* is
malfunctioning.Have the TPMS or Advanced TPMS* checked
by an authorized Mercedes-Benz Center.
Have the wheel sensors installed 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. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.

371 Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
Tire Pressure
Monitor
Inoperative
No Wheel SensorsThere are wheels without appropri-
ate wheel sensors mounted (e.g.
winter tires).Have the TPMS or Advanced TPMS* checked
by an authorized Mercedes-Benz Center.
Have the appropriate wheel sensors installed
by an authorized Mercedes-Benz Center.
Tire Pres. Monitor
Wheel Sensor MissingVehicles with Advanced TPMS*:
One or more sensors malfunction
(e.g. battery in one or more wheel
sensors is empty).
One or more wheels without appro-
priate wheel sensors mounted (e.g.
spare tire).Have the Advanced TPMS* checked at an au-
thorized Mercedes-Benz Center.
Have the wheel sensors installed at an
authorized Mercedes-Benz Center.
The tire pressure for the respective tire is
shown in the multifunction display.
One or more wheels without appro-
priate wheel sensors mounted (e.g.
spare tire).
The respective tire is indicated by ---
instead of the tire inflation pressure
in the multifunction display.Have the Advanced TPMS* checked at an au-
thorized Mercedes-Benz Center.
Have the appropriate wheel sensors installed
at 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. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.

372 Practical hints
What to do if …
Symbol messages
Display symbolDisplay messagePossible cause/consequencePossible solution
V You are driving with one or more doors
open.Close the doors.
YYou are driving with the hood open.Close the hood (page 286).
Ê This message will appear whenever the
trunk is open.Close the trunk.
#The battery is no longer charging.
Possible causes:

alternator malfunctioning

broken poly-V-belt
Considerably greater brake pedal force is
required and the stopping distance is
increased.
Stop immediately in a safe location or
as soon as it is safe to do so and
check the poly-V-belt.
If it is broken:
Do not continue to drive. Otherwise
the engine will overheat due to an
inoperative water pump which may re-
sult in damage to the engine. Notify
an authorized Mercedes-Benz Center.
If it is intact:
Drive immediately to the nearest
authorized Mercedes-Benz Center.
Adjust driving to be consistent with
reduced braking responsiveness.

373 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
#There is a malfunction in the electronic
system.Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
#Battery/Alternator
Stop VehicleThe battery is malfunctioning.
Considerably greater brake pedal force is
required and the stopping distance is in-
creased.Stop the vehicle as soon as it is safe
to do so. Adjust driving to be consis-
tent with reduced braking responsive-
ness.
Call Roadside Assistance.
Notify an authorized Mercedes-Benz
Center.
#Low Voltage
Start EngineThe battery has insufficient voltage.Start the engine (page 51).
2Brake WearThe brake pads have reached their wear
limit.Have the brake pads replaced as soon
as possible.
!Brake pad thickness must be visually in-
spected by a qualified technician at the intervals
specified in the Maintenance Booklet.

374 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
(USA only)
;
(Canada only)
!
Release
Parking BrakeYou are driving with the parking brake
set.Release the parking brake
(
page 53).
(USA only)
;
(Canada only)
3
EBV, ABS, ESP
Inoperative
See Operator’s Man.ABS, ESP®, EBP as well as PRE-SAFE®
have switched off due to a malfunction.
BAS is also switched off.
The brake system is still functioning nor-
mally but without the ABS, BAS, ESP
® and
PRE-SAFE® available.
Continue driving with added caution.
Adjust driving to be consistent with
reduced braking responsiveness.
Contact an authorized
Mercedes-Benz Center as soon as
possible.
(USA only)
;
(Canada only)
3
Check
Brake Fluid
LevelThere is insufficient brake fluid in the
reservoir.Risk of accident! Stop the vehicle in a
safe location and notify an authorized
Mercedes-Benz Center. Do not add
brake fluid! This will not solve the
problem.
Warning!G
Driving with the messages Check Brake
Fluid Level
displayed can result in an ac-
cident. Have your brake system checked im-
mediately.
Do not add brake fluid before checking the
brake system. Overfilling the brake fluid res-
ervoir can result in spilling brake fluid on hot
engine parts and the brake fluid catching
fire. You can be seriously burned.!If you find that the brake fluid in the brake
fluid reservoir has fallen to the minimum mark or
below, have the brake system checked for brake
pad thickness and leaks.

375 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
(USA only)
ú
(Canada only)
±
Service RequiredThere may be a malfunction in the:

fuel injection system

ignition system

exhaust system

fuel system
Have the measuring system checked
by an authorized Mercedes-Benz
Center.
H Top Up
Coolant
See Operator’s Man.The coolant level is too low.Add coolant (page 290).
If you have to add coolant frequently,
have the cooling system checked by
an authorized Mercedes-Benz Center.
Warning!G
Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts. You could be seriously burned.
!Do not ignore the low engine coolant level
warning. Extended driving with the message and
symbol displayed may cause serious engine
damage not covered by the Mercedes-Benz Lim-
ited Warranty.Do not drive without sufficient amount of coolant
in the cooling system. The engine will overheat
causing major engine damage.