2008 MERCEDES-BENZ CLK63AMG Owner's Manual

408 Practical hints
What to do if …?
Display symbolDisplay messagePossible cause/consequencePossible solution
AGas Cap
Is OpenA loss of pressure has been detected in
the fuel system. The fuel cap may not be
closed properly or the fuel system may be
leaky.Check the fuel cap (page 320).
If it is not closed properly:
Close the fuel cap.
If it is closed properly:
Have the fuel system checked at an
authorized Mercedes-Benz Center.
Reserve FuelThe fuel level has dropped below the
reserve mark.Refuel at the next gas station
(
page 320).
± Display Malfunction
Service RequiredCertain electronic systems are unable to
relay information to the control system.
The following systems may have failed:

Coolant temperature display

Tachometer

Cruise control display
Have the electronic systems checked
at an authorized Mercedes-Benz Cen-
ter.

409 Practical hints
What to do if …?
When the message Check oil level at
next refueling.
appears while the engine
is running and at operating temperature,
the engine oil level has dropped to
approximately the minimum level.When this occurs, the warning is at first in-
termittent and then remains on if the oil
level drops further.
Visually check for oil leaks. If there are no
obvious oil leaks, drive to the nearest ser-
vice station to refill the engine oil to the re-
quired level.
For information on approved engine oils,
refer to the Factory Approved Service
Products pamphlet (USA only) or contact
an authorized Mercedes-Benz Center.
Display symbolDisplay messagePossible cause/consequencePossible solution
:Check oil level
at next refueling
.
The engine oil level has dropped to a
critical level.Check the engine oil level
(
page 325) and add oil as required
(
page 327).
If you must add engine oil frequently,
have the engine checked for possible
leaks.
!Engine oil level warnings should not be ig-
nored. Extended driving with the symbol dis-
played could result in serious engine damage
that is not covered by the Mercedes-Benz Limit-
ed Warranty.

410 Practical hints
What to do if …?
Display symbolDisplay messagePossible cause/consequencePossible solution
I Change
Key BatteriesThe SmartKey with KEYLESS-GO* batter-
ies are discharged.Change the batteries (page 441).
Key Detected
In VehicleA SmartKey with KEYLESS-GO* left in the
vehicle was recognized while locking the
vehicle from the outside.Take the SmartKey out of the vehicle.
Key
Not DetectedThe SmartKey with KEYLESS-GO* is mo-
mentarily not recognized.Change the position of the SmartKey
in the vehicle.
Operate the vehicle with the SmartKey
in the starter switch if necessary.
Key
Not DetectedThe SmartKey with KEYLESS-GO* is not
recognized while the engine is running be-
cause

the SmartKey is not in the vehicle

there is strong radio-frequency inter-
ference
Stop the vehicle as soon as it is safe to
do so.
Apply the parking brake (page 59).
Search for the SmartKey.
Otherwise the vehicle cannot be centrally
locked nor can the engine be started
again after the engine has been stopped.
Please
get a new key.No additional code available for SmartKey
or SmartKey with KEYLESS-GO*Contact an authorized Mercedes-Benz
Center as soon as possible.

411 Practical hints
What to do if …?
Display symbolDisplay messagePossible cause/consequencePossible solution
I Please don’t
forget your keyThis display appears (for a maximum of
60 seconds) if the driver’s door is opened
with the engine shut off and no SmartKey in
the starter switch.
Message is only a reminder.Insert SmartKey in the starter switch.
Take the SmartKey with
KEYLESS-GO* with you when leaving
the vehicle.
Remove KeyYou have forgotten to remove the SmartKey.Remove the SmartKey from the start-
er switch.
. Active Headlamps
Auxiliary Bulb OnThe active headlamps are malfunctioning. An-
other light is being used.Contact an authorized Mercedes-Benz
Center as soon as possible.
Active Headlamps
InoperativeThe Bi-Xenon cornering lamps system is mal-
functioning.Contact an authorized Mercedes-Benz
Center as soon as possible.
AUTO-Light
InoperativeThe light sensor is malfunctioning. The head-
lamps switch on automatically.Contact an authorized Mercedes-Benz
Center as soon as possible.
To switch off the headlamps:
In the control system, set lamp opera-
tion to manual mode (
page 162).
Switch off the headlamps using the
exterior lamp switch (
page 129).
3rd
Brake LampThe high mounted brake lamp is malfunction-
ing. This message will only appear if a critical
number of LEDs have stopped working.Contact an authorized Mercedes-Benz
Center as soon as possible.

412 Practical hints
What to do if …?
Display symbolDisplay messagePossible cause/consequencePossible solution
. Brake Lamp
LeftThe left brake lamp is malfunctioning.Replace the bulb as soon as possible
(
page 448).
Brake Lamp
RightThe right brake lamp is malfunctioning.Replace the bulb as soon as possible
(
page 448).
Front Foglamp
LeftThe left front fog lamp is malfunctioning.Contact an authorized Mercedes-Benz
Center as soon as possible.
Front Foglamp
RightThe right front fog lamp is malfunctioning.Contact an authorized Mercedes-Benz
Center as soon as possible.
Front Left
Parking LampThe left front parking lamp is
malfunctioning. Replace the bulb as soon as possible
(
page 447).
Front Right
Parking Lamp
The right front parking lamp is
malfunctioning.Replace the bulb as soon as possible
(
page 447).
Front Left
Turn SignalThe left front turn signal lamp is malfunc-
tioning.Replace the bulb as soon as possible
(
page 447).
Front Right
Turn SignalT h e r i g h t f r o n t t u r n s i g n a l l a m p i s m a l f u n c-
tioning.Replace the bulb as soon as possible
(
page 447).
High Beam
LeftThe left high beam lamp is malfunction-
ing.Replace the bulb as soon as possible
(
page 446).
High Beam
RightThe right high beam lamp is malfunction-
ing.Replace the bulb as soon as possible
(
page 446).

413 Practical hints
What to do if …?
Display symbolDisplay messagePossible cause/consequencePossible solution
. License Plate Lamp
LeftThe left license plate lamp is malfunction-
ing.Replace the bulb as soon as possible
(
page 449).
License Plate Lamp
RightThe right license plate lamp is malfunc-
tioning.Replace the bulb as soon as possible
(
page 449).
Low Beam
LeftThe left low beam lamp is malfunctioning.Halogen headlamp:
Replace the bulb as soon as possible
(
page 446).
Bi-Xenon* headlamp:
Contact an authorized Mercedes-Benz
Center as soon as possible.
Low Beam
RightThe right low beam lamp is malfunction-
ing.Halogen headlamp:
Replace the bulb as soon as possible
(
page 446).
Bi-Xenon* headlamp:
Contact an authorized Mercedes-Benz
Center as soon as possible.
Marker Lamp
Front LeftThe front left side marker lamp is malfunc-
tioning.Contact an authorized Mercedes-Benz
Center as soon as possible.
Marker Lamp
Front RightThe front right side marker lamp is mal-
functioning.Contact an authorized Mercedes-Benz
Center as soon as possible.

414 Practical hints
What to do if …?
Display symbolDisplay messagePossible cause/consequencePossible solution
. Rear Foglamp
Auxiliary Bulb On

The foglamp is malfunctioning. A backup
bulb is being used.Replace the bulb as soon as possible
(
page 448).
Reverse Lamp
LeftThe left backup lamp is malfunctioning.Replace the bulb as soon as possible
(
page 448).
Reverse Lamp
RightThe right backup lamp is malfunctioning.Replace the bulb as soon as possible
(
page 448).
Switch Off LightsYou have removed the SmartKey from the
starter switch, opened the driver’s door
and left the headlamps on or removed the
SmartKey with KEYLESS-GO* from the ve-
hicle and left the headlamps on.Switch off the headlamps.
Switch Off Lights
Or
Remove KeyThe exterior lamp switch is in
positionU, and the SmartKey or
SmartKey with KEYLESS-GO* is in the
starter switch. The parking lamps remains
on.Remove SmartKey or SmartKey with
KEYLESS-GO* from starter switch.
or
Turn the exterior lamp switch to
positionM.
Tail Lamp
Left
Auxiliary Bulb On

The left tail lamp is malfunctioning. A
backup bulb is being used.Replace the bulb as soon as possible
(
page 448).

415 Practical hints
What to do if …?
Display symbolDisplay messagePossible cause/consequencePossible solution
. Tail Lamp
Right
Auxiliary Bulb On

The right tail lamp is malfunctioning. A
backup bulb is being used.Replace the bulb as soon as possible
(
page 448).
Left Mirror
Turn SignalThe turn signal in the left exterior rear
view mirror is malfunctioning. This mes-
sage will only appear if a critical number
of LEDs have stopped working.Contact an authorized Mercedes-Benz
Center as soon as possible.
Right Mirror
Turn SignalThe turn signal in the right exterior rear
view mirror is malfunctioning. This mes-
sage will only appear if a critical number
of LEDs have stopped working.Contact an authorized Mercedes-Benz
Center as soon as possible.
Turn Signal
Rear Left
Auxiliary Bulb On

The left rear turn signal lamp is malfunc-
tioning. A backup bulb is being used.Replace the bulb as soon as possible
(
page 448).
Turn Signal
Rear Right
Auxiliary Bulb On

The right rear turn signal lamp is malfunc-
tioning. A backup bulb is being used.Replace the bulb as soon as possible
(
page 448).