2004 MERCEDES-BENZ CLK320 COUPE key

302 OperationVehicle careWiper blades
Fold wiper arm forward until it snaps
into place.

Clean the wiper blade inserts with a
clean cloth and detergent solution.Window cleaning

Fold wiper arm forward until it snaps
into place.

Use a window cleaning solution on all
glass surfaces.
An automotive glass cleaner is recom-
mended.
Warning!
G
For safety reasons, switch off wipers and re-
move SmartKey from starter switch before
cleaning the wiper blades. Otherwise the
wiper motor might suddenly turn on and
cause injury.!Fold the windshield wiper arms back
onto the windshield before turning the
SmartKey in the starter switch.
Hold on to the wiper when folding the
wiper arm back. If released, the force
of the impact from the tensioning
spring could crack the windshield.
Warning!
G
For safety reasons, switch off wipers and re-
move SmartKey from starter switch before
cleaning the windshield. Otherwise the wip-
er motor might suddenly turn on and cause
injury.
!Fold the windshield wiper arms back
onto the windshield before turning the
SmartKey in the starter switch.
Hold on to the wiper when folding the
wiper arm back. If released, the force
of the impact from the tensioning
spring could crack the windshield.

306 Practical hintsWhat to do if …?
What to do if …?Lamps in instrument clusterGeneral information:
If a bulb in the instrument cluster fails to
come on during the bulb self-check when turning the SmartKey in the starter switch
to position2, have it checked and replaced
if necessary.Problem
Possible cause
Suggested solution
-
The yellow ABS malfunction
indicator lamp comes on while
driving.
The ABS has detected a malfunction and has
switched off. The BAS and the ESP are also
switched off (see messages in display).
The brake system is still functioning normally
but without the ABS available.

Continue driving with added caution.
Wheels will lock during hard braking,
reducing steering capability.

Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.

Read and observe messages in the
display (
page 314).
The charging voltage has fallen below
10 volts. The ABS has switched off.
When the voltage is above this value
again, the ABS is operational again.
If necessary, have the generator (al-
ternator) and battery checked.

314 Practical hintsWhat to do if …?Messages in the display
The control system shows warning and
malfunction messages in the multifunction
display.
Certain warning and malfunction messag-
es are accompanied by an audible signal.
Address these messages accordingly and
follow the additional instructions given in
this Operator’s Manual.
Selecting the malfunction memory menu in
the control system (
page 138) displays
both cleared and uncleared messages.
High-priority messages appear in the mul-
tifunction display in red color.
Certain messages of high priority cannot
be cleared from the multifunction display
using the reset button (page 126).
Other high priority messages and messag-
es of less immediate priority (regular dis-
play colors) can be cleared from the
multifunction display using the reset but-
ton and are then stored in the malfunction
message memory (
page 138).On the pages that follow, you will find a
compilation of the most important warning
and malfunction messages that may ap-
pe ar i n the di spl ay . High pr iori ty m es sa ge s
appear on a red background.
Warning!
G
All categories of messages contain impor-
tant information which should be taken note
of and, where a malfunction is indicated, ad-
dressed as soon as possible at an autho-
rized Mercedes-Benz Center.
Failure to repair the condition noted may
cause damage not covered by the
Mercedes-Benz Limited Warranty, or result
in property damage or personal injury.Warning!
G
No messages will be displayed if either the
instrument cluster or the multifunction dis-
play is inoperative.
Contact your nearest authorized
Mercedes-Benz Center.
iTurning the SmartKey in starter switch
to position2, or pressing the
KEYLESS-GO* start/stop button twice
to position2 causes all lamps as well
as the multifunction display to come
on. Ensure that they are all in working
order before starting your journey.

319 Practical hints
What to do if …?
Display
Display message
Possible cause
Possible solution
P
Selector lever
in park position
You have turned off the engine with the
KEYLESS-GO* start/stop button in gear
selector lever positionN and opened the
driver’s door.
or
You have attempted to switch off the en-
gine with the KEYLESS-GO* start/stop
button while the gear selector lever was in
positionR orD.

Place the gear selector lever in
positionP.
Please move
selector lever to P
or N
You have attempted 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 or N.

328 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
A
Reserve fuel
The fuel level has dropped below the re-
serve mark.

Refuel at the next gas station
(page 278).
Y
Hood open!
You are driving with the hood open.

Close the hood (
page 282).
I
Remove key
You have forgotten to remove the
SmartKey.

Remove the SmartKey from the start-
er switch.
Replace key!
No additional code available for SmartKey
or SmartKey with KEYLESS-GO*

Visit an authorized Mercedes-Benz
Center as soon as possible.
Key
Check battery!
The SmartKey with KEYLESS-GO* batter-
ies are discharged.

Change the batteries (
page 345).
Key
not recognized!
The 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.

Search for the SmartKey.
Otherwise the vehicle cannot be centrally
locked nor can the engine be started
again after the engine has been stopped.
The 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.

329 Practical hints
What to do if …?
Display symbol
Display message
Possible cause
Possible solution
I
Key recognized
in vehicle
A SmartKey with KEYLESS-GO* left in the
vehicle was recognized while locking the
vehicle from the outside.

Take the SmartKey out of the vehicle.
Keyless Go
Check system
The KEYLESS-GO* system is malfunction-
ing.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Key
do not forget key
This 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.
.
3rd stop lamp
The high mounted brake lamp is malfunc-
tioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Back- up lamp, left
The left backup lamp is malfunctioning.

Replace the bulb as soon as possible.
Back- up lamp, right
The right backup lamp is malfunctioning.

Replace the bulb as soon as possible.
Display defective!
Visit workshop!
The display for the lamps or the system is
malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Front foglamp, left
The left front fog lamp is malfunctioning.

Replace the bulb as soon as possible.
Front foglamp, right
The right front fog lamp is malfunctioning.

Replace the bulb as soon as possible.

332 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
.
Turn off lamps!
Lamps have been turned on although the
SmartKey in the starter switch is in posi-
tion 0.

Turn off the headlamps.
Turn signal front left
Substitute lamp on!

The left front turn signal lamp is malfunc-
tioning. A backup bulb is being used.

Replace the bulb as soon as possible.
Turn signal front right
Substitute lamp on!

The right front turn signal lamp is malfunc-
tioning. A backup bulb is being used.

Replace the bulb as soon as possible.
Turn signal in
left mirror
The left turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.

Have the LEDs replaced as soon as
possible.
Turn signal in
right mirror
The right turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.

Have the LEDs replaced as soon as
possible.
Turn signal rear left
Substitute lamp on!

The left rear turn signal lamp is malfunc-
tioning. A backup bulb is being used.

Replace the bulb as soon as possible.
Turn signal rear right
Substitute lamp on!

The right rear turn signal lamp is malfunc-
tioning. A backup bulb is being used.

Replace the bulb as soon as possible.

336 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
K
Close
sunroof!
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the sliding/pop-up roof open.

Close the sliding/pop-up roof
(page 214).
J
Close
sunroof!
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the sliding/pop-up roof open.

Close the sliding/pop-up roof
(page 214).
ì
Function
Not available
This display appears if button ì or
í on the multifunction steering wheel
is pressed and the vehicle is not equipped
with a telephone.
Ê
Close trunk lid!
This message will appear whenever the
trunk lid is open.

Close the trunk lid.
W
Washer fluid
Check level
The fluid level has dropped to about
1/3 of
total reservoir capacity.

Add washer fluid (
page 289).