2005 MERCEDES-BENZ CL55AMG open hood

280 OperationEngine compartment
The coolant expansion tank is located on
the passenger side of the engine compart-
ment.
1Coolant expansion tank
Using a rag, turn the cap slowly approx-
imately one half turn to the left to re-
lease any excess pressure.

Continue turning the cap to the left and
remove it.The coolant level is correct if the level


for cold coolant: reaches the black top
part of the reservoir


for warm coolant: is approximately
0.6 in (1.5 cm) higher

Add coolant as required.

Replace and tighten cap.
For more information on coolant, see
“Coolants” (
page 415).
Warning!
G
In order to avoid any possibly serious burns:

Use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system,
or if the coolant temperature gauge indi-
cates that the coolant is overheated.


Do not remove pressure cap on coolant
reservoir if coolant temperature is
above 158°F (70°C). Allow engine to
cool down before removing cap. The
coolant reservoir contains hot fluid and
is under pressure.


Using a rag, slowly open the cap approx-
imately ½ turn to relieve excess pres-
sure. If opened immediately, scalding
hot fluid and steam will be blown out un-
der pressure.


Do not spill antifreeze on hot engine
parts. Antifreeze contains ethylene gly-
col which may burn if it comes into con-
tact with hot engine parts.
!CL 600 and CL 65 AMG:
Only open the cap on coolant expan-
sion tank1. Never open the cap be-
tween the charge-air coolers.
Otherwise, the engine could be dam-
aged.

345 Practical hints
What to do if …?
During severe operating conditions,
e.g. stop-and-go traffic, the coolant tem-
perature may rise close to 248°F (120°C).
Display
Possible cause
Possible solution
Ï
COOLANT
STOP, ENGINE OFF
The coolant is too hot.

Stop the vehicle and turn off the engine.

Only start the engine again after the mes-
sage disappears. You could otherwise
damage the engine.
Warning!
G
Driving when your engine is badly overheat-
ed can cause some fluids which may have
leaked into the engine compartment to
catch fire. You could be seriously burned.
Steam from an overheated engine can cause
serious burns and can occur just by opening
the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.
!The engine should not be operated with
the coolant temperature above 248°F
(120°C). Doing so may cause serious
engine damage which is not covered by
the Mercedes-Benz Limited Warranty.

350 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
_
ENTRY POSITION
DO NOT DRIVE
Seat, exterior mirrors and steering wheel
have not yet moved to their preset driving
positions.

Wait until the seat, exterior mirrors and
steering wheel have moved to their driv-
ing positions.
The message will disappear.
Y

HOOD OPEN
You are driving with the hood open.

Close the hood (
page 274).
I
REMOVE KEY
You have forgotten to remove the
SmartKey.

Remove the SmartKey from the ignition.
REPLACE KEY
DRIVE TO WORKSHOP
The SmartKey is malfunctioning.

Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
AUTOMATIC LIGHT ON
REMOVE KEY
SmartKey in starter switch position 1
or2.

Remove the SmartKey from the starter
switch.
KEY
CHECK BATTERY
The battery in the SmartKey with KEY-
LESS-GO* is discharged.

Replace the battery (
page 371).
KEY
NOT RECOGNIZED
SmartKey with KEYLESS-GO* is not rec-
ognized 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 it has been stopped.

376 Practical hintsReplacing bulbsReplacing bulbs for front lamps
Before you start to replace a bulb for a
front lamp, do the following first:
Turn the exterior lamp switch to M
(page 52).

Open the hood (
page 273) (except
for side marker lamps).
1Housing cover for high beam flasher
bulb, parking and standing lamp2Electrical connector for high beam
flasher housing bulb
3Bulb socket for parking and standing
lamp
4Bulb socket for turn signal lamp
5Housing cover for Bi-Xenon headlampBi-Xenon headlamp
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-
om men d t ha t y ou ha ve s uc h w o rk do n e by a
qualified technician.

380 Practical hintsReplacing wiper bladesInstalling wiper blades
Slide the wiper blade onto wiper arm
until it locks in place.

Rotate the wiper blade into position
parallel to wiper arm.

Fold the wiper arm backward to rest on
the windshield. Make sure you hold
onto the wiper when folding the wiper
arm back.
!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 windshield.
Do not allow the wiper arms to contact
the windshield glass without a wiper
blade inserted.
Make certain that the wiper blades are
properly installed. Improperly installed
wiper blades may cause windshield
damage.
For your convenience, we recommend
that you have this work carried out by
an authorized Mercedes-Benz Center.

436 IndexGloves (vehicle tool kit) 365
Good visibility 178
GPS 242, 421
Gross Axle Weight Rating see GAWR
Gross Vehicle Weight Rating see GVWR
Gross Vehicle Weight see GVW
GVW 309
GVWR 310
H
Hand-held transmitter
Programming integrated remote
control 252
Hands-free microphone 29
Hard plastic trim items
Cleaning 322
Hazard warning flasher 129
Switching off 130
Switching on 130
Head restraints 114
Headlamp cleaning system 271Headlamps
Automatic control 126
Bi-Xenon 419
Cleaning 319
Cleaning system 178, 282, 418
Refilling washer fluid 282
Switching off 59
Switching on 52
Headliner
Cleaning 322
Heated steering wheel* 240
Height adjustment
Head restraints 39
Steering wheel 42
Height adjustments
Vehicle level 221
High beam 52
High beam flasher 129
High beam headlamps
Messages in display 352
Replacing bulbs 374
Switching on 129High mounted brake lamp 374
High-performance brake system (CL 65
AMG only) 261
Hood 273
Closing 274
Message in display 350
Opening 273
Hydroplaning 263
I
Identification labels
Certification label 400
Emission control information
label 400
Vacuum line routing diagram
label 400
VIN (vehicle identification
number) 400
Ignition 34, 36
Switching on 34
Immobilizer 85
Activating 85
Deactivating 85

441 Index
Engine oil level 348
Entry position 350
Hood 350
Lamps 353
Parking brake 341
Selector lever 341
SmartKey 350
SmartKey with KEYLESS-GO* 350
Tele Aid 356
TeleAid 356
Telephone* 356
Tires 358, ??–364
Trunk 357
Washer fluid 357
Multifunction steering wheel 26, 137,
422
Buttons 137
N
Navigation system
Operating 148
See separate COMAND operating in-
structionsNight security illumination 127
Normal occupant weight 310
Nubuck leather upholstery
Cleaning 323
O
Occupant distribution 310
Occupant safety 62
Air bags 63
Children and air bags 64
Children in the vehicle 72
Fastening the seat belt 45
Infant and child restraint systems 72
LATCH child seat mounts 77
Seat belts 45, 66
Oil
Adding 278
Consumption 274
Dipstick 274
Filler neck 278, 279
Viscosity 421Oil level
Checking 272
Oil level via control system
Checking 275
One-touch gearshifting 167
Canceling gear range limit 167
Downshifting 167
Upshifting 167
Opening
Ashtray 238
Cup holder 237
Doors from the inside 100
Fuel filler flap 270
Fuel filler flap manually 369
Glove box 232
Hood 273
Power tilt/sliding sunroof 202
Side windows 198
Storage compartment in the center
console 234
Storage compartments in the
armrest 234