Page 281 of 458

279 Operation
Engine compartment
CL 65 AMG1Filler cap
Unscrew filler cap 1 from filler neck.
Add engine oil as required. Be careful
not to overfill with oil.
Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water.
Screw filler cap1 back on filler neck.
For more information on engine oil, see the
“Technical data” section (
page 411) and
(
page 413).
Transmission fluid level
The transmission fluid level does not need
to be checked. If you notice transmission
fluid loss or gear shifting malfunctions,
have an authorized Mercedes-Benz Center
check the automatic transmission.
Active Body Control (ABC) fluid level
Regular fluid level check is not required. If
you notice fluid leaks or malfunction mes-
sages in the multifunction display, have an
authorized Mercedes-Benz Center check
the ABC system.Coolant level
The engine coolant is a mixture of water
and anticorrosion/antifreeze.
When checking the coolant level,
the vehicle must be parked on level
ground, and
the engine must be cool.
!Excess oil must be siphoned or drained
off. It could cause damage to the en-
gine and catalytic converter not cov-
ered by the Mercedes-Benz Limited
Warranty.
Page 319 of 458

317 Operation
Vehicle care
Vehicle care
Cleaning and care of vehicle
While in operation, even while parked, your
vehicle is subjected to varying external in-
fluences which, if gone unchecked, can at-
tack the paintwork as well as the
underbody and cause lasting damage.Such damage is caused not only by ex-
treme and varying climatic conditions, but
also by:
Air pollution
Road salt
Tar
Gravel and stone chipping
To avoid paint damage, you should imme-
diately remove:
Grease and oil
Fuel
Coolant
Brake fluid
Bird droppings
Insects
Tree resins, etc.
Frequent washing reduces and/or elimi-
nates the aggressiveness and potency of
the above adverse influences.More frequent washings are necessary to
deal with unfavorable conditions:
near the ocean
in industrial areas (smoke, exhaust
emissions)
during winter operation
You should check your vehicle from time to
time for stone chipping or other damage.
Any damage should be repaired as soon as
possible to prevent corrosion.
In doing so, do not neglect the underbody
of the vehicle. A prerequisite for a thor-
ough check is a washing of the underbody
followed by a thorough inspection. Dam-
aged areas need to be re-undercoat-
ed.Your vehicle has been treated at the
factory with a wax-base rustproofing in the
body cavities which will last for the lifetime
of the vehicle. Post-production treatment
is neither necessary nor recommended by
Mercedes-Benz because of the possibility
of incompatibility between materials used
in the production process and others ap-
plied later.
Warning!
G
Many cleaning products can be hazardous.
Some are poisonous, others are flammable.
Always follow the instructions on the partic-
ular container. Always open your vehicle’s
doors or windows when cleaning the inside.
Never use fluids or solvents that are not de-
signed for cleaning your vehicle.
Page 350 of 458
348 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
:
USA only:ADD 1.0 QT. OIL
AT FILLING STATIONCanada only:ADD 1.0 LITER OIL
AT FILLING STATION
The engine oil level is too low.
Add engine oil (
page 278) and check
the engine oil level (page 275).
ENGINE OIL LEVEL
STOP, ENGINE OFF
There is no oil in the engine.
There is a danger of engine damage.
Carefully bring the vehicle to a halt as
soon as possible.
Turn off the engine.
Add engine oil (
page 278) and check
the engine oil level (page 275).
ENGINE OIL LEVEL
REDUCE OIL LEVEL
You have added too much engine oil.
There is a risk of damaging the engine or
the catalytic converter.
Have excess oil siphoned or drained off.
Observe all legal requirements with re-
spect to its disposal.
Page 351 of 458

349 Practical hints
What to do if …?
When the message
ADD 1.0 QT. OIL AT
FILLING STATION (Canada:
1 Liter
) ap-
pears while the engine is running and at
operating temperature, the engine oil level
has dropped to approximately the mini-
mum level.When this occurs, the warning will first
come on intermittently and then stay on if
the oil level drops further.
Visually check for oil leaks. If no obvious oil
leaks are noted, drive to the nearest ser-
vice station where the engine oil should be
topped to the required level with an ap-
proved oil specified in the Factory Ap-
proved Service Products pamphlet.
Display
Possible cause
Possible solution
:
ENGINE OIL
VISIT WORKSHOP
It may be that there is water in the engine
oil.
Have the engine oil level checked
(page 275).
ENGINE OIL LEVEL
VISIT WORKSHOP
The engine oil has dropped to a critical
level.
Check the engine oil level (
page 275)
and add engine oil as required
(
page 278).
If you must add engine oil frequently,
have the engine checked for possible
leaks.
OIL SENSOR MALFUNCT.
VISIT WORKSHOP
The measuring system is malfunctioning.
Have the measuring system checked by
an authorized Mercedes-Benz Center.
!The engine oil level warnings should
not be ignored. Extended driving with
the symbol displayed could result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Page 377 of 458

375 Practical hints
Replacing bulbs
Notes on bulb replacement
Only use 12 volt bulbs of the same type
and with the specified watt rating.
Switch lights off before changing a bulb
to prevent short circuits.
Always use a clean lint-free cloth when
handling bulbs.
Your hands should be dry and free of oil
and grease.
If the newly installed bulb does not
come on, visit an authorized
Mercedes-Benz Center.Have the LEDs and bulbs for the following
lamps replaced by an authorized
Mercedes-Benz Center.
Additional turn signal lamps in the exte-
rior rear view mirrors
Bi-Xenon lamps
High mounted brake lamp
Brake lamps
Rear side marker lamps
Rear parking lamps
Warning!
G
Keep bulbs out of reach of children.
Bulbs and bulb sockets can get very hot. Al-
low the lamp to cool down before changing
a bulb.
Halogen lamps contain pressurized gas. A
bulb can explode if you
touch or move it when hot
drop the bulb
scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.
iHave the headlamp adjustment
checked regularly.
Page 431 of 458

429 Index
Central locking
Automatic 110
From inside 111
Switch 111
Switching on/off (control
system) 161
Unlocking from inside 111
Central locking switch 111
Change of address or ownership 12
Changing
Key setting 162
Vehicle level 222
Changing CDs 144
Charcoal filter 192
Activating 192
Deactivating 192
Charging
Vehicle battery 387
CHECK ENGINE malfunction indicator
lamp 328, 329Checking
Coolant level 279
Oil level 272, 274
Oil level via control system 275
Tire inflate pressure 272
Vehicle lighting 272
Checking the batteries
SmartKey 93
Child safety 72
Air bags 64
Infant and child restraint systems 68,
72
LATCH child seat mounts 77
Child safety switch see Blocking of rear
window operation 78
Cigarette lighter 239Cleaning
Cup holder 322
Distronic* system sensor cover 320
Gear selector lever 322
Hard plastic trim items 322
Headlamps 178
Headliner and shelf below rear
window 322
Instrument cluster 322
Leather upholstery 323
Light alloy wheels 322
Nubuck leather upholstery 323
Parktronic* system sensor 320
Plastic and rubber parts 323
Seat belts 322
Steering wheel 322
Upholstery 323
Windows 321
Windshield 55
Wiper blades 320
Wood trims 323
Cleaning tires 285
Page 432 of 458

430 IndexClock 25
Closing
Cup holder 237
Glove box 232
Hood 274
Power tilt/sliding sunroof 202
Side windows 198, 199
Trunk 103
Windows 197
Closing from the inside*
Trunk 103
Closing in an emergency
Tilt/sliding sunroof 370
Closing tilt/sliding sunroof
In an emergency 370
Cockpit 22, 420
Cockpit management and data system
(COMAND) 420
Cold tire inflation pressure 309
COMAND 420
COMAND see separate operating instruc-
tionsCombination switch 129
High beam 52
High beam flasher 129
Turn signals 53
Windshield wipers 54
Control and operation of radio
transmitters 267
Control system 136, 420
AUDIO menu 141
Checking oil level 275
Convenience submenu 162
Display digital speedometer 141
Distronic* menu 149
Functions 138, 140
Instrument cluster submenu 156
Lighting submenu 157
Menus 139, 140
Multifunction display 136
Multifunction steering wheel 137
NAVI menu 148
Settings menu 153
Standard display menu 141
Submenus 138, 140TEL* menu 146
Trip computer menu 150
Vehicle status message memory
menu 152
Vehicle submenu 161
Convenience submenu 162
Activating easy-entry/exit
feature 163
Setting automatic locking 161
Setting fold-in function for exterior rear
view mirrors 164
Setting Key-dependency 162
Setting parking position for exterior
rear view mirror 164
Coolant 279
Adding 280
Checking level 279
Messages in display 344, 345
Temperature 269
Temperature gauge 134
Warning lamp 345
Coolant level 271
Checking 279
Coolant temperature gauge 25
Page 436 of 458

434 IndexEngine cleaning 319
Engine compartment 273
Fuse box in 396
Hood 273
Engine malfunction indicator lamp 25,
328, 329
Engine number 400, 421
Engine oil 274
Adding 278
Additives 413
Checking level 274
Consumption 274
Display messages 348
Filler neck 278, 279
Messages in display 276, 348
Viscosity 421
Engine oil level see Oil level 272
Entry position
Messages in display 350
ESP 82, 421
Switching off 83
Switching on 84
Synchronizing 340
Warning lamp 330, 331ETD 421
Safety guidelines 66
ETD (Emergency tensioning device) 71
Exterior lamp switch 125
Exterior rear view mirror
Auto-dimming on the driver’s
side 178
Exterior rear view mirrors
Adjusting 43
Folding electrically 180
Parking position for 164
F
Fahrenheit (°F)
Setting temperature units 156
Fastening the seat belts 45
Fine adjustment
Cruise control 207
Distronic* 214First aid kit 365
Flat tire 381
Lowering the vehicle 384
Mounting the Spare wheel 381
Preparing the vehicle 381
Flexible Service System (FSS) 315
Flexible Service System see FSS
Fog lamp, rear 128, 374
Replacing bulb 378
Fog lamps
Replacing bulbs 374
Fog lamps, front
Messages in display 352
Switching on 128
Folding electrically
Exterior rear view mirrors
180
Front air bags 67