Page 355 of 456
354 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
F
KEY
NOT RECOGNIZED
The SmartKey with KEYLESS-GO* is mo-
mentarily not recognized.
Change the position of the SmartKey with
KEYLESS-GO* in the vehicle.
Operate the vehicle with the SmartKey in
the starter switch if necessary.
KEY
STILL IN VEHICLE
A SmartKey with KEYLESS-GO* left in the
vehicle was recognized while locking the
vehicle from the outside.
Take the SmartKey with KEYLESS-GO*
out of the vehicle.
KEYLESS-GO
DRIVE TO WORKSHOP
The KEYLESS-GO* system is malfunction-
ing.
Visit an authorized Mercedes-Benz
Center as soon as possible.
.
3RD BRAKE LIGHT
CHECK LIGHT
The high mounted brake lamp is malfunc-
tioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
STOP LAMP
VISIT WORKSHOP
Brake lamp illumination is delayed or
lamp is permanently on.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 356 of 456

355 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
.
BRAKE LIGHT LEFT
SUBSTITUTE LAMP ON
The left brake lamp is malfunctioning. A
substitute bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
BRAKE LIGHT RIGHT
SUBSTITUTE LAMP ON
The right brake lamp is malfunctioning. A
substitute bulb is being used.
Visit an authorized Mercedes-Benz
Center 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
CHECK LIGHT
The left front fog lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
FRONT FOGLAMP, RIGHT
CHECK LIGHT
The right front fog lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
HIGH BEAM, LEFT
CHECK LIGHT
The left high beam lamp is malfunction-
ing.
Replace the bulb as soon as possible.
HIGH BEAM, RIGHT
CHECK LIGHT
The right high beam lamp is malfunction-
ing.
Replace the bulb as soon as possible.
LICENSE PLATE L, L
CHECK LIGHT
The left license plate lamp is malfunction-
ing.
Replace the bulb as soon as possible.
LICENSE PLATE L, R
CHECK LIGHT
The right license plate lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
Page 379 of 456
378 Practical hintsReplacing bulbsSafe vehicle operation depends on proper
exterior lighting and signaling. It is there-
fore essential that all bulbs and lamp as-
semblies are in good working order at all
times.
Correct headlamp adjustment is extremely
important. Have headlamps checked and
readjusted at regular intervals and when a
bulb has been replaced. See your autho-
rized Mercedes-Benz Center for headlamp
adjustment.
iIf the headlamps or front fog lamps are
fogged up on the inside as a result of
high humidity, driving the vehicle a dis-
tance with the lights on should clear up
the fogging.
iSubstitute bulbs will be brought into
use when the following lamps malfunc-
tion:
Brake lamps
Rear parking lamps
Rear turn signal lamps
Tail lamps
Observe the messages in the multi-
function display (
page 354).
Page 381 of 456

380 Practical hintsReplacing bulbsNotes 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
Front side marker 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 396 of 456

395 Practical hints
Jump starting
The battery is located on the right side of
the trunk under the battery cover
(page 391).
Make sure the two vehicles do not
touch.
Turn off all electrical consumers.
Apply parking brake.
Shift gear selector lever to positionP.
Open the trunk.
Remove battery cover.
Remove red cover from positive
terminal 1. 1Positive terminal of discharged battery
2Negative terminal of discharged bat-
tery
3Positive terminal of charged battery
4Negative terminal of charged battery
Connect positive terminals 1 and3
of the batteries with the jumper cable.
Clamp cable to charged battery3
first.
Start engine of the vehicle with the
charged battery and run at idle speed.
Connect negative terminals2 and4
of the batteries with the jumper cable.
Clamp cable to charged battery4
first.
Start the engine of the disabled vehi-
cle.
Now you can again turn on the electrical
consumers. Do not turn on the lights under
any circumstances.
Remove the jumper cables first from
negative terminals2 and4 and then
from positive terminals1 and3.
You can now turn on the lights.
Have the battery checked at the near-
est authorized Mercedes-Benz Center.
Warning!
G
Keep flames or sparks away from battery.
Do not smoke.
Observe all safety instructions and precau-
tions when handling automotive batteries
(page 281).
!Never invert the terminal connections.
Page 428 of 456

427 Technical terms
ABC
(A
ctive B
ody C
ontrol)
Active, computer-controlled system
that hydraulically adjusts the suspen-
sion at all four wheels in response to
various driving situations.
ABS
(A
ntilock B
rake S
ystem)
Prevents the wheels from locking up
during braking so that the vehicle can
continue to be steered.
Accessory weight
(
page 309)
Air pressure
(page 309)
Alignment bolt
Metal pin with thread. The centering
pin is an aid used when changing a tire
to align the wheel with the wheel hub.
Aspect ratio
(page 309)BabySmart
TM air bag deactivation
system
This system detects if a special system
compatible child restraint seat is in-
stalled on the front passenger seat. The
system will automatically deactivate
the passenger front air bag when such
a seat is properly installed
(the58indicator lamp in the
center console comes on and remains
illuminated).
BabySmartTM compatible child seats
Special restraint system for children.
The sensor system for the front pas-
senger seat prevents deployment of
the passenger front air bag if a
BabySmartTM compatible child seat is
installed. See an authorized
Mercedes-Benz Center for availability.
Bar
(
page 309)BAS
(B
rake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking situa-
tions. The system is activated when it
senses an emergency based on how
fast the brake is applied.
Bead
(
page 309)
Bi-Xenon headlamps
Headlamps which use an electric arc as
the light source and produce a more in-
tense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam.
CAC
(Customer A
ssistance C
enter)
Mercedes-Benz customer service cen-
ter, which can help you with any ques-
tions about your vehicle and provide
assistance in the event of a break-
down.
Page 434 of 456

433 Index
A
ABC 220, 427
Messages in display 339
Setting vehicle level 221
Suspension tuning 220
ABS 80, 427
Indicator lamp 328
Messages in display 341
Accelerator position, Automatic
transmission 169
Accessory weight 309
Accident 56
Active Body Control see ABC
Additional turn signals
Replacing bulbs 379
Air bags 63
BabySmart
TM air bag deactivation
system 74, 427
Children 64
Front 67
Safety guidelines 66
Side impact 67
Window curtain 68
Air cleaner see Air filter
Air conditioning refrigerant 419, 420Air conditioning system see Automatic cli-
mate control
Air conditioning, Cooling 193
Air distribution 188
Air filter
Message in display 341
Air recirculation mode 190
Air vents 185, 196
Air volume 189
Alarm system see Anti-theft alarm system
Alignment bolt (vehicle tool kit) 370,
389, 427
Anticorrosion/antifreeze 423, 424
Antiglare, Rear view mirror 178
Antilock Brake System see ABS
Anti-theft alarm systems
Indicator lamp 86
Anti-theft systems 85
Anti-theft alarm system 85
Immobilizer 85
Tow-away alarm 87
Aquaplaning see Hydroplaning
Armrest 232, 233
Ashtrays 237
Aspect ratio 309AUDIO menu 142
Audio system
CD changer operating mode 145
Auto-dimming, Rear view mirror 178
Automatic central locking, Control
system 110, 162
Automatic climate control 184
Air conditioning refrigerant 420
Air conditioning, Cooling 193
Air distribution 188
Air recirculation mode 190
Air vents 185, 196
Air volume 189
Charcoal filter 191
Control panel 185
Deactivating system 187
Defogging 188
Defrosting 189
MAXCOOL maximum cooling 189
Rear window defroster 193
Residual engine heat and ventilation
(REST) 194
Setting the temperature 187
Automatic headlamp mode 126
Automatic lighting control, Interior
lighting 131
Page 441 of 456

440 IndexHeadliner, cleaning 325
Heated seats 119
Heated steering wheel* 239
High beam flasher 52, 129
Replacing bulbs 379, 382
High beam headlamps
Indicator lamp 25
Messages in display 355
Replacing bulbs 379
Switching on 52, 129
High mounted brake lamp 379
High-performance brake system
(CL 65 AMG only) 261
Hood 273
Message in display 353
Horn 23
HVAC see Automatic climate control
Hydroplaning 263I
Identification labels 406
Certification 406
Emission control information 406
Vacuum line routing 406
Identification number, Vehicle (VIN) 406
Ignition 34, 36
Immobilizer 85
Indicator lamps see Lamps, indicator and
warning
Infant and child restraint systems see Chil-
dren in the vehicle
Inflation pressure see Tires, Inflation pres-
sure
Inside door handle 100
Instrument cluster 24, 134, 429
Cleaning 324
Illumination brightness 134
Lamps 328
Message in display 350
Multifunction display 137
Instrument lighting see Instrument cluster,
Illumination brightnessInstrument panel see Instrument cluster
Instruments and controls see Cockpit
Interior lighting 131
Delayed switch-off 161
Interior rear view mirror
43, 178
Antiglare 178
Auto-dimming 178
Interior storage spaces see Storage com-
partments