Page 334 of 409

333 Practical hints
What to do if ...
Left display
Right display
Possible cause/
consequence
Possible solution
.
Right turn signal
Mirror
The right turn signal in the side
mirror is malfunctioning. This
message will only appear if all
light emitting diodes have
stopped working.
Have the LEDs replaced as soon as possible.
Tail lamp
Left
Substitute
bulb on
The left tail lamp is malfunc-
tioning. This message will only
appear if a critical number of
LEDs have blown.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Tail lamp
Right
Substitute
bulb on
The right tail lamp is malfunc-
tioning. This message will only
appear if a critical number of
LEDs have blown.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Turn off
lamps
You have removed the Smart-
Key from the starter switch and
opened the driver’s door.
Turn the exterior lamp switch toM.
Turn signal
Front left
T h e l e f t f r o n t t u r n s i g n a l l a m p i s
malfunctioning.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Turn signal
Front right
The right front turn signal lamp
is malfunctioning.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Page 335 of 409
334 Practical hintsWhat to do if ...Left display
Right display
Possible cause/
consequence
Possible solution
.
Turn signal
Rear left
Substitute
bulb on
The left rear turn signal lamp is
malfunctioning. A backup bulb
has been brought into use.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Turn signal
Rear right
Substitute
bulb on
The right rear turn signal lamp
is malfunctioning. A backup
bulb has been brought into use.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Visit
workshop
The display for the lights is mal-
functioning.
Visit an authorized Mercedes-Benz Center as soon as
possible.
<
Seat belt system
Drive to
workshop
The seat belt system is mal-
functioning.
Visit an authorized Mercedes-Benz Center immediately.
L
Tele Aid
Drive to
workshop
One or more main functions of
the Tele Aid system are mal-
functioning.
Have the Tele Aid system checked by an authorized
Mercedes-Benz Center immediately.
Page 349 of 409

348 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 an authorized
Mercedes-Benz Center for headlamp ad-
justment.
!You must not change the bulbs or LEDs
yourself, as you could damage the vehi-
cle lighting systems.
Have blown bulbs or LEDs replaced by
an authorized Mercedes-Benz Center.iIf the headlamps are fogged up on the
inside as a result of high humidity, driv-
ing the vehicle a distance should clear
up the fogging.
iSubstitute bulbs will be brought into
use when lamps malfunction. Observe
the messages in the multifunction dis-
play (
page 330).
iIf one of the following bulbs blows, an-
other bulb will adopt its function:
Rear turn signals
Brake lamps
Side lamps
Tail lamps
Page 350 of 409
349 Practical hints
Replacing bulbs
Front lamps
Rear lamps
Lamp
Type
1
Additional turn signal
LEDs
2
Turn signal
PY, 21 W
3
Side marker lamp
WY 5 W
4
Parking lamp
W5W
5
Low and high beam
lamp
D2S, 35 W
6
High beam flasher
H7, 55 W
7
Front fog lamp
H3, 55 W
Lamp
Type
8
Brake/parking lamp
LEDs
9
Turn signal lamp
LEDs
a
Side marker lamp
P 21 W
b
High mounted brake
lamp
LEDs
c
License plate lamp
C 5 W
d
Rear fog lamp
P 21 W
e
Backup lamp
P 21 W
f
Reflector
-
Page 400 of 409

399 Index
PASSENGER AIRBAG OFF 75, 306
Seat belt telltale 29, 304
SRS 29, 63, 304
Tire pressure monitor 29, 305
Turn signals 29
Language, Setting 130
License plate lamp
Messages in the multifunction
display 331
Replacing bulbs 348
License plate lamps 349
Light sensor
Messages in the multifunction
display 331
Lighter see Cigarette lighter
Lighting
Exterior 105
Interior 111
Limp Home Mode, Automatic
transmission 178
Loading see Vehicle loading
Location
Audio system 143
Compact guide (Canada only) 343
Telephone 201
Vehicle literature portfolio 342Locator lighting 108, 133
Loss of
Keys 99
Service and Warranty Information
Booklet 367
Low beam headlamps 105
Messages in the multifunction
display 331
Replacing bulbs 348
Switching on 52
Lubricants 377
M
Main odometer 29
Maintenance 289, 356
Calling up service indicator 291
Resetting service indicator 291
Service indicator 289
Service term exceeded 290
Manual gearshift program, Automatic
transmission 176
Manual headlamp mode see Headlamps
Map pocket in passenger footwell 200Maximum load rating, Tires 282
Maximum loaded vehicle weight 282
Maximum tire inflation pressure 282
Mechanical key 344
Menus see Control system menus
Messages in display see Multifunction dis-
play messages 307
Microphone, Hands-free 33
Mirrors 179
Adjusting 44
Auto-dimming 179
Exterior rear view mirror 44
Interior rear view mirror 44
MON 241, 387
Motor Octane Number see MON
Multifunction display 117, 387
Changing settings see Control system
menus and Control system
submenus 117
Left 29
Right 29
Selecting language 130