2008 MERCEDES-BENZ CL-Class hood open

660 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Gas Cap Loose
A 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 550).
If it is not closed properly:

Close the fuel cap.
If it is closed properly:

Have the fuel system checked by an autho-
rized Mercedes-Benz Center.
Reserve Fuel
The fuel level has dropped below the re-
serve mark.

Refuel at the next gas station (
page 550).
You are driving with the hood open.

Stop your vehicle as soon as it is safe to do
so.

Engage the electronic parking brake
(page 412).

Close the hood (
page 554).
There is otherwise danger of an accident.

691 Practical hints
Replacing bulbs
Replacing bulbs for front lamps
You can only change the halogen bulbs for,
high-beam flasher lamp, corner-illuminat-
ing lamp, and IR emitter* lamp.
Before you start to replace a bulb for a
front lamp, do the following first:
Turn the exterior lamp switch to M
(page 391).

Open the hood (
page 553).
Headlamp, left1Cover
2Tab

Removing cover: Pull cover1 on
tab2 in direction of arrow and re-
move cover1.
Bi-Xenon headlampsHigh beam flasher lamp
Headlamp, left1Installation device
Pull installation device1 up (left
headlamp) or down (right headlamp)
and remove the bulb together with
installation device1 from the head-
lamp.
Warning!
G
Do not remove the cover for the Bi-Xenon
headlamp. Because of high voltage in Xenon
lamps, it is dangerous to replace the bulb or
repair the lamp and its components. We rec-
o mme n d th a t y o u h av e s uc h wo rk don e by a
qualified technician.


694 Practical hintsReplacing wiper blades
Placing wiper arms in vertical positionWiper blades in vertical position
Make sure the hood is fully closed.
Vehicles with SmartKey

Turn SmartKey in starter switch
position1.

Turn combination switch to wiper
settingu (
page 400).

With wiper arm in vertical position, turn
the SmartKey in starter switch to
position0.
Warning!
G
For safety reasons, switch off wipers and re-
move SmartKey from starter switch (vehi-
cles with KEYLESS-GO*: Make sure the
vehicle’s on-board electronics have
status0) before replacing a wiper blade.
Otherwise, the wiper motor could suddenly
turn on and cause injury. Warning!
G
Wiper blades are components that are sub-
ject to wear and tear. Replace the wiper
blades twice a year, preferably in the spring
and fall. Otherwise the front window will not
be properly wiped. As a result, you may not
be able to observe surrounding traffic condi-
tions and could cause an accident.
!
To avoid damage to the hood:


The wiper arms should only be folded for-
ward when in the vertical position.


Never open the hood when the wiper arm is
folded forward.
!
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 wind-
shield.
Do not allow the wiper arms to contact the wind-
shield glass without a wiper blade inserted.
For your convenience, we recommend that you
have this work carried out by an authorized
Mercedes-Benz Center.

705 Practical hints
Batteries
Switching off vehicle’s internal
electrical functions
Turn off all electrical consumers.

Turn SmartKey in starter switch to po-
sition 0.

Turn SmartKey in starter switch to po-
sition 1.

Wait for 30 seconds.
The vehicle’s internal electrical func-
tions are switched off.

Turn SmartKey in starter switch to po-
sition 0.Disconnecting starter battery

Open the hood (
page 553).

Use a 10-mm open-end wrench to dis-
connect the battery negative lead.

Remove cover2 (
page 704) from
the positive terminal.

Disconnect the battery positive lead.
Removing starter battery
Pull out the battery ventilation hose
from the battery (depending on battery
arrangement in your vehicle model, the
ventilation hose is located either on the
left or right side of the battery).

Fold bar on starter battery up.

Take out the starter battery.
Charging battery
i
Vehicles with KEYLESS-GO: remove the
KEYLESS-GO button (
page 366) and use the
SmartKey with KEYLESS-GO like a normal
SmartKey.
!
Do not remove the SmartKey!
i
For your convenience, have the starter bat-
tery removed by a Mercedes-Benz Center.
Warning!
G
Never charge a battery while still installed in
the vehicle unless the accessory battery
charge unit approved by Mercedes-Benz is
being used. Gases may escape during charg-
ing and cause explosions that may result in
paint damage, corrosion or personal injury.
An accessory battery charge unit specially
adapted for Mercedes-Benz vehicles and
tested and approved by Mercedes-Benz is
available, permitting the charging of the bat-
tery in its installed position. Contact an au-
thorized Mercedes-Benz Center for
information and availability. Charge battery
in accordance with the separate instruc-
tions for the accessory battery charger.i
Have the batteries charged by a
Mercedes-Benz Center. If you charge the batter-
ies yourself, follow the operating instructions for
your charging device.

708 Practical hintsJump startingJump starting should only be performed on
the starter battery. The starter battery is
located in the engine compartment on the
passenger side (
page 704).

Make sure the two vehicles do not
touch.

Secure vehicle in place with electronic
parking brake (
page 412).

Shift the automatic transmission to
park positionP (
page 417).

Turn off all electrical consumers, ex-
cept hazard warning flashers or work
lights.

Open the hood (
page 553).

Start the engine of the vehicle with the
charged battery and run at idle speed.1Negative clamp
2Negative terminal of charged battery
3Positive terminal of charged battery
4Positive terminal of discharged battery
Warning!
G
Keep flames or sparks away from battery.
Do not smoke.
Observe all safety instructions and precau-
tions when handling automotive batteries
(page 702).
i
Vehicles with KEYLESS-GO: remove the
KEYLESS-GO button (
page 366) and use the
SmartKey with KEYLESS-GO like a normal
SmartKey.

715 Practical hintsFuses
Before replacing fuses:
Engage the electronic parking brake
(page 412).

Make sure the automatic transmission
is set to park positionP (
page 417).
The gear position indicator in the multi-
function display should be on park
positionP.

Turn off all electrical consumers.

Turn off the engine (
page 415).

Switch off the vehicle’s internal electri-
cal functions (
page 705).
Fuse boxes in engine compartment
Open the hood (
page 553).
Box on the driver’s side
Example illustration from CL 55014 screws
2Cover
3JumperOpening

Take the crank from the Operator’s
Manual pouch.

Loosen screws1 with crank.

Remove jumper3.

Remove cover2.
Closing

Attach cover2.

Attach jumper3.

Tighten screws1 with crank.
!
The cover must fit properly, as otherwise
moisture or dirt may impair the functionality of
the fuses.

751 Index
G
Garage door opener 530
Gasoline see Fuel
GAWR 586
Gear range
Automatic transmission 426
Limiting 426
Shifting into optimal 430
Gear selector lever 417
Gearshift pattern 417
Messages in display 627, 632, 636,
638, 680
Position 420
Shifting procedure 420
Transmission position 421
Glove box 510
GPS
Reception (COMAND) 187
Tele Aid 522
Gross Axle Weight Rating see GAWR
Gross Vehicle Weight Rating see GVWR
Gross Vehicle Weight see GVW
GVW 586
GVWR 586H
Hands-free microphone 37
Hard plastic trim items, cleaning 605
Hazard warning flasher 397
Head restraints 376
Adjustment 376
Folding back and placing upright
rear head restraints 377
Front seat 376
Rear seat 377
Headlamp cleaning system 395, 560
Washer fluid 735, 741
Headlamps
Automatic headlamp mode 301, 392
Cleaning lenses 599
Cleaning system 560
Low beam 392
Manual headlamp mode 301
Messages in display 664
Refilling washer fluid 560
Replacing bulbs 689, 691
Headliner and shelf below rear window,
Cleaning and care of 605
Heated steering wheel* 380Height adjustments
Vehicle level (ABC) 462
High beam
Replacing bulbs 689
High beam flasher 395
High beam headlamp
Indicator lamp 31
High mounted brake lamp 689
High-performance brake system
(CL 63 AMG and CL 65 AMG) 541
Hood 553
Message in display 660
Opening 553
Horn 29
Hydroplaning 543