Page 114 of 474

113 Controls in detail
Lighting
Rear fog lamp (driver’s side only)
Turn the exterior lamp switch to 
positionCorB (
page 109).
Pull out the exterior lamp switch to 
second stop.
The front fog lamps and the rear fog 
lamp switch on.
The yellow indicator lamp† in the 
exterior lamp switch comes on 
(
page 109).
Push in the exterior lamp switch to first 
stop.
The rear fog lamp switches off.
The yellow indicator lamp† in the 
exterior lamp switch goes out.
The front fog lamps remain lit.
Combination switch
1High beam
2High beam flasherHigh beam
Turn the exterior lamp switch to 
positionB (
page 109).
Push the combination switch in 
direction of arrow1 to switch on the 
high beam.
The high beam headlamp indicator 
lampA in the instrument cluster 
comes on (
page 26).
Pull the combination switch in direction 
of arrow2 to its original position to 
switch off the high beam.
The high beam headlamp indicator 
lampA in the instrument cluster 
goes out.
High beam flasher
Pull the combination switch briefly in 
direction of arrow2. 
     
        
        Page 144 of 474

143 Controls in detail
Control system
Lighting submenu
Access the 
Lighting submenu via the 
Settings menu. Use the Lighting sub-
menu to change the lamp and lighting 
settings on your vehicle.
The following functions are available:Setting daytime running lamp mode 
(USA only)
Move the selection marker with 
buttonæorç to the 
Lighting 
submenu.
Press buttonjork repeatedly 
until the message 
Headlamp Mode 
appears in the multifunction display.
The selection marker is on the current 
setting.
Press buttonæorç to select 
manual operation (
Manual) or daytime 
running lamp mode (
Constant).With daytime running lamp mode activated 
and the exterior lamp switch at 
positionMorU, the low beam 
headlamps are switched on when the en-
gine is running.
In low ambient light conditions the follow-
ing lamps will switch on additionally:
Parking lamps
Tail lamps
License plate lamps
Side marker lamps
For more information on the daytime run-
ning lamp mode, see “Lighting” 
(
page 109).
FunctionPage
Setting daytime running lamp 
mode (USA only)143
Setting locator lighting144
Setting night security 
illumination144
Setting interior lighting delayed 
shut-off 145
iThis function is not available in countries 
where the daytime running lamp mode is manda-
tory and therefore in a constant mode.
iFor safety reasons, resetting all the func-
tions of all submenus to the factory settings 
while driving (
page 136) will not deactivate the 
daytime running lamp mode.
The following message appears in the multifunc-
tion display:
Lighting Cannot be completely reset to 
factory settings while driving
. 
     
        
        Page 362 of 474
361 Practical hints
What to do if …
On the pages that follow, you will find 
a compilation of the most important warn-
ing and malfunction messages that may 
appear in the multifunction display.
For your convenience the messages are 
divided into two sections:
Text messages (page 362)
Symbol messages (page 371)
Warning!G
No messages will be displayed if either the 
instrument cluster or the multifunction dis-
play is inoperative. 
Contact your nearest authorized 
Mercedes-Benz Center.
iSwitching on ignition (page 37) causes all 
instrument cluster lamps (except high beam 
headlamp indicator lamp and turn signal indica-
tor lamps unless activated) as well as the multi-
function display to come on. Make sure the 
lamps and multifunction display are in working 
order before starting your journey. 
     
        
        Page 384 of 474
383 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
.High Beam
RightThe right high beam lamp (halogen 
headlamps)/high beam flasher 
lamp (Bi-Xenon* headlamps) is 
malfunctioning.Replace the bulb as soon as 
possible (
page 400).
License Plate Lamp
LeftThe left license plate lamp is 
malfunctioning.Replace the bulb as soon as 
possible (
page 400).
License Plate Lamp
RightThe right license plate lamp is 
malfunctioning.Replace the bulb as soon as 
possible (
page 400).
Reverse Lamp
LeftThe left backup lamp is malfunc-
tioning.Replace the bulb as soon as 
possible (
page 400).
Reverse Lamp
RightThe right backup lamp is malfunc-
tioning.Replace the bulb as soon as 
possible (
page 400).
Low Beam
LeftThe left low beam lamp is malfunc-
tioning.Halogen headlamp:
Replace the bulb as soon as 
possible (
page 400).
Bi-Xenon* headlamp:
Contact an authorized Mercedes-Benz 
Center as soon as possible. 
     
        
        Page 385 of 474

384 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
.Low Beam
RightThe right low beam lamp is malfunc-
tioning.Halogen headlamp:
Replace the bulb as soon as 
possible (
page 400).
Bi-Xenon* headlamp:
Contact an authorized Mercedes-Benz 
Center as soon as possible.
Parking lamp, Front Left
Auxiliary Bulb OnThe left front parking lamp is 
malfunctioning. A backup bulb has 
been brought into use.Replace the bulb as soon as 
possible (
page 400).
Parking Lamp, Front Right
Auxiliary Bulb OnThe right front parking lamp is 
malfunctioning. A backup bulb has 
been brought into use.Replace the bulb as soon as 
possible (
page 400).
Marker Lamp
Front LeftThe left front side marker lamp is 
malfunctioning.Contact an authorized Mercedes-Benz 
Center as soon as possible.
Marker Lamp
Front RightThe right front side marker lamp is 
malfunctioning.Contact an authorized Mercedes-Benz 
Center as soon as possible.
Marker Lamp
Rear LeftThe left rear side marker lamp is 
malfunctioning. This message will 
only appear if a critical number of 
LEDs have stopped working.Contact an authorized Mercedes-Benz 
Center as soon as possible. 
     
        
        Page 402 of 474
401 Practical hints
Replacing bulbs
Front lamps
LampType
1Additional turn signal 
lampLED
2Turn signal lamp3457 AK
3Halogen headlamp:
Low beam
H7 (55 W)
Bi-Xenon* headlamp:
Low and high beam1
1Vehicles with Bi-Xenon* headlamps: Low beam 
and high beam use the same D2S-35W lamp. Do 
not replace the Bi-Xenon* bulbs yourself. Contact 
an authorized Mercedes-Benz Center.
D2S-35 W
4Front fog lampHB4 (51 W)
Front fog lamp 
(vehicles with Sport 
Package* and 
SLK 55 AMG)H7 (55 W)
Corner illuminating 
front fog lamp*H7 (55 W)
LampType
5Parking and standing 
lampW5W
6Halogen headlamp:
High beam/high beam 
flasher
H7 (55 W)
Bi-Xenon* headlamp:
High beam flasher
H7 (55 W)
7Side marker lampW5W 
     
        
        Page 404 of 474
403 Practical hints
Replacing bulbs
Replacing 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 
positionM (
page 109).
Open the hood (page 294).
1Housing cover for low beam (halogen 
headlamps only)
Housing cover for Bi-Xenon* head-
lamps. Do not remove.
2Bulb socket for turn signal lamp
3Bulb socket for high beam/high beam 
flasher lamp
4Bulb socket for parking and standing 
light lamp
5Bulb socket for low beam bulb 
(Halogen headlamps only)
Warning!G
Do not remove the cover1 for the 
Bi-Xenon* headlamp. Because of high volt-
age in Bi-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. 
     
        
        Page 405 of 474

404 Practical hints
Replacing bulbs
Low beam bulb (Halogen headlamps 
only)
Turn housing cover1 counterclock-
wise and remove.
Turn bulb socket5 with the bulb 
counterclockwise and remove.
Pull the bulb out of bulb socket5.
Press the new bulb into bulb socket5.
Place bulb socket5 back into the 
lamp and turn it clockwise.
Reinstall housing cover1.
High beam/high beam flasher bulb 
(Halogen headlamps) / High beam 
flasher bulb (Bi-Xenon* headlamps)
Turn bulb socket3 with the bulb 
counterclockwise and remove.
Pull the bulb out of bulb socket3.
Press the new bulb into bulb socket3.
Place bulb socket3 back into the 
lamp and turn it clockwise.Front turn signal bulb
Turn bulb socket2 with the bulb 
counterclockwise and remove.
Press gently onto the bulb and turn it 
counterclockwise out of bulb 
socket2.
Press the new bulb gently into bulb 
socket2 and turn it clockwise.
Place bulb socket2 back into the 
lamp and turn it clockwise.
Parking and standing lamp bulb
Turn bulb socket4 with the bulb 
counterclockwise and remove.
Pull the bulb out of bulb socket4.
Press the new bulb into bulb socket4.
Place bulb socket4 back into the 
lamp and turn it clockwise.
Replacing bulbs for rear lamps
Before you start to replace a bulb for a rear 
lamp, do the following first:
Turn the exterior lamp switch to 
positionM (
page 109).
Open the trunk lid (page 99).
Tail lamp unit
1Bulb socket for rear fog lamp 
(driver’s side only)
2Bulb socket for turn signal lamp
3Bulb socket for backup lamp