Page 333 of 435

332 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
.
STANDING LIGHT, L
CHECK LAMP!
SUBSTITUTE LAMP ON!
The left standing lamp is malfunctioning.
A back-up bulb is being used.
Replace the bulb as soon as possible.
STANDING LIGHT, R
CHECK LAMP!
SUBSTITUTE LAMP ON!
The right standing signal lamp is malfunc-
tioning. A back-up bulb is being used.
Replace the bulb as soon as possible.
TAIL LIGHT, L
CHECK LAMP!
SUBSTITUTE LAMP ON!
The left tail lamp is malfunctioning. A
back-up bulb is being used.
Replace the bulb as soon as possible.
TAIL LIGHT, R
CHECK LAMP!
SUBSTITUTE LAMP ON!
The right tail lamp is malfunctioning. A
back-up bulb is being used.
Replace the bulb as soon as possible.
SWITCH OFF LIGHTS!
Lamps have been turned on although the
SmartKey in the ignition is in position 0.
Turn off the headlamps.
TURN SIGNAL F, L
CHECK LAMP!
SUBSTITUTE LAMP ON!
The left front turn signal lamp is malfunc-
tioning. A back-up bulb is being used.
Replace the bulb as soon as possible.
TURN SIGNAL F, R
CHECK LAMP!
SUBSTITUTE LAMP ON!
The right front turn signal lamp is mal-
functioning. A back-up bulb is being used.
Replace the bulb as soon as possible.
Page 334 of 435

333 Practical hints
What to do if …?
Display symbol
Display message
Possible cause
Possible solution
.
TURN SIGNAL, L
CHECK LAMP!
SUBSTITUTE LAMP ON!
The left rear turn signal lamp is malfunc-
tioning. A back-up bulb is being used.
Replace the bulb as soon as possible.
TURN SIGNAL, R
CHECK LAMP!
SUBSTITUTE LAMP ON!
The right rear turn signal lamp is malfunc-
tioning. A back-up bulb is being used.
Replace the bulb as soon as possible.
TURN SIG. MIRROR, L
CHECK LAMP!
The left turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.
Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
TURN SIG. MIRROR, R
CHECK LAMP!
The right turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.
Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
<
SEAT BELT SYSTEM
VISIT WORKSHOP!
The seat belt system is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
K
CLOSE
SUNROOF!
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the sliding/pop up roof open.
Close the sliding/pop-up roof
(page 199).
J
CLOSE
SUNROOF!
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the sliding/pop up roof open.
Close the sliding/pop-up roof
(page 199).
Page 354 of 435
353 Practical hints
Replacing bulbs
Replacing bulbs
Safe 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.
Bulbs Front lamps
iBackup bulbs will be brought into use
when the following lamps malfunction:
Turn signal lamps
Brake lamps
Parking lamps
Tail lamps
Lamp
Type
1
Additional turn sig-
nal lamps
LED
2
Low 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.
H7-55 W
Bi -Xenon*
D2S-35 W
3
Turn signal lamp
2357 A
4
Fog lamp
H7-55 W
5
Parking and stand-
ing lamp
W5W
6
Side marker lamp
W5W
7
High beam
H7-55 W
Page 355 of 435

354 Practical hintsReplacing bulbsRear lamps 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 follow-
ing lamps replaced by an authorized
Mercedes-Benz Center.
Additional turn signal lamps in the
exterior rear view mirrors
High mounted brake lamp
Bi-Xenon lamps*
Front fog lamps
Lamp
Type
8
Brake lamp
LED
9
Turn signal lamp
PY 21 W
a
Tail and standing
lamp, side marker
P 21/4 W
b
Backup lamp
P21W
c
License plate lamps
C5W
d
Tail lamp, Rear fog
lamp
P 21/4 W
e
High mounted brake
lamp
LED
Warning!
G
Keep bulbs out of reach of children.
Bulbs and bulb sockets can be 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 Bi-Xenon lamps,
it is dangerous to replace the bulb or repair
the lamp and its components. We recom-
mend that you have such work done by a
qualified technician.
Page 356 of 435
355 Practical hints
Replacing bulbs
Replacing bulbs for front 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
Halogen headlamp
Switch off the lights.
Open the hood (
page 272).
Press the tab on cover3 and remove
cover.
Pull connector7 off of the lamp.
Release the retaining springs and take
out the bulb.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-
ommend that you have such work done by a
qualified technician.
Page 357 of 435

356 Practical hintsReplacing bulbs
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
Switch off the lights.
Open the hood (
page 272).
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
Switch off the lights.
Open the hood (
page 272).
Twist 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 359 of 435
358 Practical hintsReplacing bulbsReplacing bulbs for rear lamps
Tail lamp assemblies
1Turn signal lamp (white socket)
2Tail, parking, standing, and side marker
lamp (red socket)
3Tail lamp, rear fog lamp (red socket)
4Backup lamp (black socket)
Switch off the lights.
Open trunk.
Turn the catch, and move the trim to
the side.
Turn bulb socket counterclockwise and
pull out.
Gently twist bulb counterclockwise and
pull out of bulb holder.
Insert new bulb into the holder and turn
it clockwise.
Reinstall bulb socket.
The bulb socket should audibly click.
Replace trim and secure with lock. License plate lamp
1Screws
Switch off the lights.
Loosen both screws1 and remove
lamp.
Replace the tubular lamp and reinstall
it.
Retighten the screws.
Page 410 of 435

409 Index
Automatic lighting control
Activating 129
Deactivating 130
Automatic locking when driving 106
Automatic transmission 164
Accelerator position 170
Comfortable program mode 170
Deactivating steering wheel gearshift
control 173
Emergency operation
(Limp Home Mode) 173
Fluid level 278
Gear ranges 166
Gear selector lever position 167
Gear shifting malfunctions 173
Kickdown 170
One-touch gearshifting 165
Program mode selector switch 170
Selector lever position 164
Starting the engine 43
Steering wheel gearshift control
(Speedshift) S 55 AMG 168
Transmission fluid 278
Winter program mode 171
Auxiliary fuse box 374B
BabySmart
TM
Airbag deactivation system 71
Compatible child seats 71, 401
Self-test 71
BabySmart
TM airbag deactivation
system 401
Backrest supports
Lumbar region 113
Shoulder region 112
Backup lamps 354, 358
Bulbs 354
BAS 78, 401
Messages in display 315
Batteries, SmartKey
Changing 350
Check lamp 90, 91
Replacing 349
Battery discharged
Jump starting 369
Battery, SmartKey with KEYLESS-GO*
Changing 351
Check lamp 95Battery, vehicle 280, 366
Charging 367
Disconnecting 367
Reconnecting 368
Reinstalling 367
Removing 367
Bi-Xenon headlamps 401
Block heater (Canada only) 293
Blocking
Rear window operation 74
Brake assist system (BAS) 401
Brake fluid 270, 394
Brake lamp bulbs 354
Brake lamp, high mounted 354
Brake pads
Message in display 321
Brakes 260
Warning lamp 305
Break-in period 258
Bulbs, replacing 353
Additional turn signals 353
Backup lamps 354
Brake lamps 354