Page 350 of 474
348 Practical hintsWhat to do if …?
On the pages that follow, you will find a
compilation of the most important warning
and malfunction messages that may ap-
pear in the malfunction display.
For your convenience the messages are di-
vided into two sections:
Text messages (
page 349)
Symbol messages (
page 354)
iSwitching on the ignition causes all in-
strument cluster lamps (except high
beam headlamp indicator lamp and
turn signal indicator lamps unless acti-
vated) as well as the multifunction dis-
play to come on. Make sure the lamps
and multifunction display are in work-
ing order before starting your journey.
Page 368 of 474

366 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
.
FRONT FOGLAMP, LEFT
CHECK LIGHT
The left front fog lamp is malfunctioning.
Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
FRONT FOGLAMP, RIGHT
CHECK LIGHT
The right front fog lamp is malfunctioning.
Visit an authorized Mercedes-Benz Cen-
ter 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.
LIGHT SENSOR
DRIVE TO WORKSHOP
The lamp sensor is malfunctioning. The
headlamps switch on automatically.
In the control system, set lamp operation
to manual (
page 163).
Switch on headlamps using the exterior
lamp switch.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 392 of 474
390 Practical hintsReplacing bulbsBulbs Front lamps Rear lamps
Lamp
Type
1
Additional turn signal
lamp
LED
2
Halogen headlamp:
Low beam
H7-55 W
Bi-Xenon* headlamp:
Low and high beam
1
1Vehicles with Bi-Xenon headlamps*: Low beam
and high beam use the same D2S-35W lamp. Do
not replace the Bi-Xenon bulbs yourself. See an au-
thorized Mercedes-Benz Center.
D2S-35 W
3
Turn signal lamp
2357 A
4
Fog lamp
H7-55 W
5
Parking and standing
lamp
W5W
6
Side marker lamp
W5W
7
Halogen headlamp:
High beam/high beam
flasher lamp
H7-55 W
Bi-Xenon* headlamp:
High beam flasher
H7-55 W
Lamp
Type
8
Brake lamp
LED
9
Turn signal lamp
PY 21 W
a
Tail and standing lamp,
side marker
P21/4W
b
Backup lamp
P21W
c
License plate lamp
C5W
d
Tail lamp, rear fog lamp
(driver's side only)
P21/4W
e
High mounted brake
lamp
LED
Page 394 of 474
392 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 50).
Open the hood (
page 286) (except
for side marker lamps).
1Headlamp cover for fog lamp
2Headlamp cover for high beam halogen
headlamp bulb, parking and standing
lamp
3Headlamp cover for Bi-Xenon* (low and
high beam) or halogen (low beam)
headlamp bulb4Bulb socket for fog lamp
5Bulb socket for parking and standing
lamp
6Electrical connector for high beam
halogen headlamp bulb
7Electrical connector for low beam
headlamp bulb
8Bulb socket for turn signal lampReplacing low beam bulbs
Bi-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.
Page 395 of 474

393 Practical hints
Replacing bulbs
Halogen headlamp
Press the tab on cover3 and remove
cover.
Pull connector7 off of the lamp.
Release the retaining springs and take
out the bulb.
Insert the new bulb in the socket so
that the base is in the recess on the
lower left.
Attach the retaining springs.
Insert connector7 into the bulb.
Press cover3 onto the housing until
the tab engages.Replacing halogen high beam bulbs
Press the tab on cover2 and remove
cover.
Pull connector 6 off of the bulb.
Apply pressure on the bulb contacts
from above until the bulb releases from
the retaining springs.
Remove bulb.
Insert the new bulb in the socket with
the marking facing upward.
Press the bulb upward on the contacts
until it engages in the retaining springs.
Insert connector6 onto the bulb.
Press cover2 onto the housing until
the tab engages.Front turn signal lamp bulb
Turn bulb socket8 counterclockwise
and pull out.
Gently push bulb into socket, turn
counterclockwise and remove.
Insert new bulb in socket, push in and
twist clockwise.
Reinstall bulb socket in lamp and twist
clockwise until it engages.
Page 439 of 474

437 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.
ADS
(A
daptive D
amping S
ystem)
Automatically adapts the optimum sus-
pension damping to prevailing driving
conditions.
Airmatic
Automatically selects the optimum sus-
pension tuning and ride height for your
vehicle. Airmatic consists of two com-
ponents:
Adaptive Damping System
Vehicle level controlAlignment bolt
Metal pin with thread. The centering
pin is an aid used when changing a tire
to align the wheel with the wheel hub.
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 (the
58indicator lamp in the center
console comes on). See an authorized
Mercedes-Benz Center for availability.
BabySmartTM compatible child seats
Special restraint system for children.
The sensor system for the passenger
seat prevents deployment of the pas-
senger front air bag if a BabySmart
TM
compatible child seat is installed. See
an authorized Mercedes-Benz Center
for availability.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.
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
(C
ustomer 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 445 of 474

443 Index
A
ABC 231, 437
Messages in display 349, 354
Setting vehicle level 230, 232
ABS 25, 80, 437
Malfunction indicator lamp 338
Messages in display 350
Warning lamp 338
Accelerator position, automatic
transmission 180
Accessory weight 322
Accident
In case of 54
Activating
Air conditioner (cooling) 203
Air conditioning 202
Air recirculation mode 199
Anti-theft alarm system 87
Central locking (control system) 168
Charcoal filter 200
Distance warning function* 226
Distronic* 222
Easy-entry/exit feature 170ESP 84
Exterior lamps 132
Exterior rear view mirror parking
position 187
Front and rear fog lamp 132, 134
Hazard warning flasher 136
Headlamps 50
High beams 135
Ignition 34
Ignition with KEYLESS-GO* start/stop
button 36
Immobilizer 57, 86
Limiting opening height of trunk
lid* 169
Manual shift program S 55 AMG 183
Rear window defroster 201
Residual heat 203
Seat heater 125, 126
Seat ventilation* 127
Tow-away alarm 89
Windshield wipers 52Adaptive Damping System (ADS) 229,
437
Adding
Coolant 293
Engine oil 291
Additional turn signals 390
Adjustable air vents, rear passenger
compartment 204
Adjusting 37
Air distribution 196
Air volume 198
Backrest tilt 38
Drive-dynamic seat* 172
Exterior rear view mirror 41
Head restraint height 39
Head restraint tilt 39
Instrument cluster illumination 140
Interior rear view mirror 41
Lumbar support 122
Mirrors 41
Multicontour backrest* 122
Power seat bench* 117
Seat cushion depth 38, 123
Page 448 of 474

446 IndexBattery, SmartKey with KEYLESS-GO*
Check lamp 101
Replacing 388
Battery, vehicle 294, 403
Charging 404
Disconnecting 404
Reconnecting 405
Reinstalling 404
Removing 404
Bead 322
Bi-Xenon headlamps 437
Block heater (Canada only) 327
Blocking
Rear window operation 78
Brake assist system (BAS) 437
Brake fluid 284, 431
Brake lamp bulbs 390
Brake lamp, high mounted 390
Brake pads
Message in display 357
Brakes 274
Warning lamp 339
Break-in period 272Bulbs, replacing 389
Additional turn signals 390
Backup lamps 390
Brake lamps 390
Fog lamps 390
Front lamps 390
High beam 390
High mounted brake lamp 390
License plate lamps 390, 395
Low beam 390
Parking and standing lamps 390
Parking lamps 390, 394
Rear fog lamp 390, 395
Rear fog lamps 394
Side marker lamps 390, 394
Standing lamps 390, 394
Tail lamp assemblies 390
Tail lamp unit 395
Turn signal lamps 390C
CAC (Customer Assistance Center) 437
Calling up
Distronic* settings 156
Maintenance service indicator 329
Range (distance to empty) 158
CAN system 438
Canceling
Cruise control 215
Cargo tie-down hooks 241
Catalytic converter 281
CD changer* 151
CD mode 151
CD operation
Selecting tracks 150
Center console 27
Air bag off indicator lamp 346
Front passenger front air bag off indica-
tor lamp 346