Page 51 of 481
50 Getting startedDrivingFor more information, see “Driving instruc-
tions” (
page 273).
Switching on headlamps
Low beam headlamps
The exterior lamp switch is located on the 
dashboard to the left of the steering wheel.Exterior lamp switch1Off
2Low beam headlamps on
Turn the switch toB.
The green indicator lampC in the 
exterior lamp switch comes on.
For more information, see “Exterior lamp 
switch” (
page 131).High beam
The combination switch is located on the 
left of the steering column.
Combination switch1High beam
2High beam flasher
!Simultaneously depressing the acceler-
ator pedal and applying the brake re-
duces engine performance and causes 
premature brake and drivetrain wear.iYou can open a locked door from the 
inside. Open doors only when condi-
tions are safe to do so.
You can deactivate the automatic lock-
ing using the control system 
(page 168). 
     
        
        Page 132 of 481

131 Controls in detail
Lighting
Lighting
For information on how to switch on the 
headlamps and use the turn signals, see 
“Switching on headlamps” (
page 50) 
and “Turn signals” (
page 51).
Exterior lamp switch
The exterior lamp switch is located on the 
dashboard to the left of the steering wheel.
M
Off
Daytime running lamp mode 
(page 133)
U
Automatic headlamp mode
Daytime running lamp mode 
(page 133)
C
Parking lamps (also side marker 
lamps, tail lamps, license plate 
lamps, instrument panel lamps)
B
Low beam headlamps (or high 
beam headlamps when the combi-
nation switch is pushed forward) 
and parking lamps
ˆ
Standing lamps, right (turn left one 
stop)
‚
Standing lamps, left (turn left two 
stops)
C
Indicator lamp for parking lamps
‡
Indicator lamp for front fog lamps
†
Indicator lamp for rear fog lamp
iIf you drive in countries where vehicles 
drive on the other side of the road than 
the country in which the vehicle is reg-
istered, you must have the headlamps 
modified for symmetrical low beams. 
Relevant information can be obtained 
at your authorized Mercedes-Benz Cen-
ter. 
     
        
        Page 133 of 481

132 Controls in detailLightingManual headlamp mode
The low beam headlamps and parking 
lamps can be switched on and off with the 
exterior lamp switch. For exterior lamp 
switch, see (
page 131).Automatic headlamp mode
The following lamps switch on and off au-
tomatically depending on the brightness of 
the ambient light:
Low beam headlamps
Tail and parking lamps
License plate lamps
Side marker lamps
iWith the SmartKey removed from the 
starter switch or the engine turned off 
with KEYLESS-GO* and the driver’s 
door open, a warning sounds if the 
parking lamps or low beam headlamps 
are switched on.
The message:
 TURN OFF LIGHTS 
appears in the multifunction display.
Warning!
G
If the exterior lamp switch is set toU,
the headlamps may switch off unexpect-
edly when the system senses bright am-
bient light, for example light from 
oncoming traffic. 
the headlamps will not be automatically 
switched on under foggy conditions. 
To minimize risk to you and to others, acti-
vate headlamps by turning exterior lamp 
switch to B when driving or when traffic 
and/or ambient lighting conditions require 
you to do so.
In low ambient lighting conditions, only 
switch from position U to B with the 
vehicle at a standstill in a safe location. 
Switching from U to B will briefly 
switch off the headlamps. Doing so while 
driving in low ambient lighting conditions 
may result in an accident.
The automatic headlamp feature is only an 
aid to the driver. The driver is responsible for 
the operation of the vehicle’s lights at all 
times.iThe front fog lamps and rear fog lamp 
cannot be switched on manually with 
exterior lamp switch in positionU. 
To activate the fog lamps, turn exterior 
lamp switch to positionB and pull 
the exterior lamp switch to first or sec-
ond stop (
page 134). 
     
        
        Page 134 of 481

133 Controls in detail
Lighting
Turn the exterior lamp switch to U.
With the SmartKey in starter switch po-
sition 1 or the KEYLESS-GO* 
start/stop button pressed once, only 
the parking lamps will switch on and off 
automatically.
When the engine is running, the low 
beam headlamps, the tail and parking 
lamps, the license plate lamps, and the 
side marker lamps will switch on and 
off automatically.
Daytime running lamp mode
Turn exterior lamp switch to 
positionM orU.
When the engine is running, the low 
beam headlamps are switched on. In 
low ambient light conditions, the fol-
lowing lamps will switch on additional-
ly: 
tail and parking lamps
license plate lamps
side marker lampsFor nighttime driving you should turn the 
exterior lamp switch to positionB to 
permit activation of the high beam head-
lamps.
Canada only
The daytime running lamp mode is manda-
tory and therefore in a constant mode. 
When the engine is running, and you shift 
from a driving position to positionN orP, 
the low beam headlamps will switch off 
with a three-minute delay.
When the engine is running, and you
turn the exterior lamp switch to 
positionC, the parking lamps 
switch on additionally.
turn the exterior lamp switch to 
positionB, the manual headlamp 
mode has priority over the daytime run-
ning lamp mode.
The corresponding exterior lamps 
switch on (
page 395).USA only
By default, the daytime running lamp mode 
is deactivated. Activate the daytime run-
ning lamp mode using the control system, 
see “Setting daytime running lamp mode 
(USA only)” (
page 165).
When the engine is running, and you turn 
the exterior lamp switch to position C 
orB, the manual headlamp mode has 
priority over the daytime running lamp 
mode.
The corresponding exterior lamps switch 
on (
page 395).
Locator lighting and night security illu-
mination
Locator lighting and night security illumi-
nation are described in the control system 
section under “Setting locator lighting” 
(
page 166) and “Setting night security il-
lumination” (
page 166). 
     
        
        Page 135 of 481

134 Controls in detailLightingSwitching on fog lamps
Switching on front fog lamps
Switch on the low beam headlamps 
(page 50).
Pull out exterior lamp switch to first 
stop.
The front fog lamps are switched on.
The green indicator lamp‡ in the 
lamp switch comes on (
page 131).
Push in the exterior lamp switch.
The front fog lamps are switched off.
The green indicator lamp‡ in the 
lamp switch goes out (
page 131).Switching on rear fog lamp (driver’s side 
only)
Switch on the front fog lamps 
(page 134).
Pull out exterior lamp switch to second 
stop.
The rear fog lamp is switched on.
The yellow indicator lamp† in the 
lamp switch comes on (
page 131).
Push in the exterior lamp switch to first 
stop.
The rear fog lamp is switched off.
The green indicator lamp‡ in the 
lamp switch goes out (
page 131).
The front fog lamps remain lit.
Warning!
G
In low ambient lighting or foggy conditions, 
only switch from position U to B with 
the vehicle at a standstill in a safe location. 
Switching from U to B will briefly 
switch off the headlamps. Doing so while 
driving in low ambient lighting conditions 
may result in an accident.iFog lamps will operate with the parking 
lamps and/or the low beam headlamps 
on. Fog lamps should only be used in 
conjunction with low beam headlamps. 
Consult your State or Province Motor 
Vehicle Regulations regarding permis-
sible lamp operation.
iFog lamps cannot be switched on with 
exterior lamp switch in position 
U
. 
For switching on the fog lamps, turn ex-
terior lamp switch to position 
B
. 
     
        
        Page 166 of 481

165 Controls in detail
Control system
Setting daytime running lamp mode 
(USA only)
Move the selection marker with 
theæ orç button to the 
LIGHT-
ING
 submenu.
Press buttonj ork repeatedly 
until you see this message in the multi-
function display: 
LIGHTING CIRCUIT 
HEADLAMP MODE.
The selection marker is on the current 
setting.
Pressæ orç to select manual 
or daytime running lamp (constant) 
mode. This function is not available in 
countries where daytime running 
lamps are mandatory.
With daytime running lamp mode selected 
and the exterior lamp switch at position0, 
the following lamps will come on automat-
ically when the engine is turned on:
Parking lamps and low beam head-
lamps
License plate lamps (in low ambient 
light conditions) 
iThis function is not available in coun-
tries where the daytime running lamp 
mode is mandatory and therefore in a 
constant mode.
iIf you turn the exterior lamp switch to 
another position, the corresponding 
lamp(s) will switch on.
For safety reasons, resetting the LIGHTING
 submenu to factory settings 
(
page 161) while driving will not re-
set the daytime running lamp mode.
In the multifunction display you will 
then see the message:
LIGHTING
CANNOT BE
COMPLETELY RESET
TO FACTORY SETTINGS
WHILE DRIVING 
     
        
        Page 351 of 481
350 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 351)
Symbol messages (
page 358)
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 372 of 481

371 Practical hints
What to do if …?
Display 
Possible cause
Possible solution
. 
LOW BEAM, LEFT 
CHECK LIGHT
The left low beam lamp is malfunctioning.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:
Visit an authorized Mercedes-Benz 
Center as soon as possible.
LOW BEAM, RIGHT 
CHECK LIGHT
The right low beam lamp is malfunction-
ing.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:
Visit an authorized Mercedes-Benz 
Center as soon as possible.
MARKER LIGHT, FL
CHECK LIGHT
 
The front left side marker lamp is mal-
functioning.
Replace the bulb as soon as possible.
MARKER LIGHT, FR
CHECK LIGHT
 
The front right side marker lamp is mal-
functioning.
Replace the bulb as soon as possible.
REAR FOGLIGHT
CHECK LIGHT
 
The rear fog lamp is malfunctioning. 
Replace the bulb as soon as possible.
REVERSE LIGHT, LEFT
CHECK LIGHT
The left reverse lamp is malfunctioning.
Replace the bulb as soon as possible.
REVERSE LIGHT, RIGHT
CHECK LIGHT
The right reverse lamp is malfunctioning.
Replace the bulb as soon as possible.