Page 53 of 474

51 Getting started
Driving
Once the vehicle is in motion, the automat-
ic central locking system engages and the 
locking knobs drop down.
After a cold start, the transmission engag-
es at a higher revolution. This allows the 
catalytic converter to reach its operating 
temperature earlier.
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 exterior lamp switch to 
position B.
The low beam headlamps come on.
!If you hear a warning signal when driv-
ing off, you have forgotten to release 
the parking brake. 
Release the parking brake.!Do not run cold engine at high engine 
speed. Running a cold engine at high 
engine speed may shorten the service 
life of the engine.
!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 door only when conditions 
are safe to do so.
You can deactivate the automatic lock-
ing using the control system 
(page 156). 
     
        
        Page 125 of 474

123 Controls in detail
Lighting
 Lighting
For information on how to switch on the 
headlamps and use the turn signals, see 
“Switching on headlamps” (
page 51) 
and “Turn signals” (
page 52).
Exterior lamp switch
The exterior lamp switch is located on the 
dashboard to the left of the steering wheel.
MOff
Daytime running lamp mode 
(
page 125)
UAutomatic headlamp mode
Daytime running lamp mode 
(page 125)CParking lamps (also tail lamps, li-
cense plate lamps, side marker 
lamps, instrument panel lamps)
Canada only: When the engine is 
running, the low beam headlamps 
are also switched on.
BLow beam headlamps (or high 
beam headlamps when the combi-
nation switch is pushed forward) 
and parking lamps
ˆStanding lamps, right (turn left one 
stop)
‚Standing lamps, left (turn left two 
stops)
CIndicator 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 any authorized Mercedes-Benz 
Center. 
     
        
        Page 126 of 474

124 Controls in detailLightingManual headlamp mode
The low beam headlamps and parking 
lamps can be switched on or off with the 
exterior lamp switch.Automatic headlamp mode
The following lamps switch on and off au-
tomatically depending on the brightness of 
the ambient light:
Low beam headlamps
Tail lamps
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 the low beam head-
lamps are switched on. 
The message $ 
Turn off lamps
 
appears in the multifunction display.
iWith the daytime running lamp mode 
activated (mandatory in Canada) and 
the engine running, the low beam head-
lamps cannot be switched off manual-
ly.
To activate the daytime running lamp 
mode, see “Setting daytime running 
lamp mode (USA only)” (
page 152).
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. Switching from U 
to B will briefly switch off the head-
lamps. Doing so while driving in low ambient 
lighting conditions may result in an acci-
dent.
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. 
     
        
        Page 127 of 474

125 Controls in detail
Lighting
Turn the exterior lamp switch to posi-
tion U.
With the SmartKey in starter switch 
position1 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 the exterior lamp switch to 
positionM orU.
When the engine is running, the low 
beam headlamps are switched on auto-
matically.
In low ambient light conditions, the fol-
lowing lamps will switch on additional-
ly:
Tail lamps
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.
iThe fog lamps cannot be switched on 
with the exterior lamp switch in posi-
tion U. To switch on the fog lamps, 
turn the exterior lamp switch to posi-
tion B.
iWith the daytime running lamp mode 
activated and the exterior lamp switch 
in positionM, the highbeam head-
lamps cannot be switched on.
The highbeam flasher is available at all 
times. 
     
        
        Page 128 of 474

126 Controls in detailLightingCanada 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 posi-
tion C, the parking lamps switch on 
additionally
turn the exterior lamp switch to posi-
tion B, the manual headlamp mode 
has priority over the daytime running 
lamp mode
The corresponding exterior lamps 
switch on (
page 123).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 152).
The high beam headlamps can also be ac-
tivated when driving with the daytime run-
ning lamp mode activated and the exterior 
lamp switch in positionM.
When the engine is running and you turn 
the exterior lamp switch to positionC 
or B, the manual headlamp mode has 
priority over the daytime running lamp 
mode.
The corresponding exterior lamps switch 
on (
page 123).Locator lighting and night security 
illumination
Locator lighting and night security illumi-
nation are described in the control system 
section, see “Setting locator lighting” 
(
page 153) and “Setting night security il-
lumination” (
page 154). 
     
        
        Page 129 of 474

127 Controls in detail
Lighting
Fog lamps
Front fog lamps
Switch on the low beam headlamps 
(page 51).
Pull out the exterior lamp switch to first 
stop.
The front fog lamps are switched on.
The green indicator lamp ‡ in the 
exterior lamp switch comes on 
(page 123).
Push in the exterior lamp switch.
The front fog lamps are switched off.
The green indicator lamp ‡ in the 
exterior lamp switch goes out.Rear fog lamp (driver’s side only)
Switch on the front fog lamps 
(page 127).
Pull out the exterior lamp switch to sec-
ond stop.
The rear fog lamp is switched on.
The yellow indicator lamp † in the 
lamp switch comes on (
page 123).
Push in the exterior lamp switch to first 
stop.
The rear fog lamp is switched off.
The yellow indicator lamp † in the 
exterior lamp switch goes out.
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. Switching from 
U to B will briefly switch off the head-
lamps. Doing so while driving in low ambient 
lighting conditions may result in an acci-
dent.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.
iThe fog lamps cannot be switched on 
with the exterior lamp switch in posi-
tion U. To switch on the fog lamps, 
turn the exterior lamp switch to posi-
tion B first. 
     
        
        Page 154 of 474

152 Controls in detailControl systemLighting submenu
Access the 
Lighting
 submenu via the 
Settings
 menu. Use the 
Lighting
 sub-
menu to change the lamp and lighting set-
tings on your vehicle. The following 
functions are available:Setting daytime running lamp mode 
(USA only)
Move the selection marker with button 
æ or ç to the 
Lighting
 sub-
menu.
Press button j or k repeatedly 
until you see 
Light circuit Headlamp 
mode
 in the multifunction display.The selection marker is on the current 
setting.
Press button æ or ç to select 
manual operation (
Manual
) or daytime 
running lamp mode (
Constant
).
With daytime running lamp mode activated 
and the exterior lamp switch at 
positionM or U the low beam head-
lamps are switched on when the engine is 
running.
Function
Page
Setting daytime running lamp 
mode (USA only)
152
Setting locator lighting
153
Setting night security illumina-
tion
154
Setting interior lighting delayed 
switch-off 
155
iThis function is not available in coun-
tries where the daytime running lamp 
mode is mandatory and therefore in a 
constant mode. 
     
        
        Page 338 of 474
336 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 multifunction display.
For your convenience the messages are di-
vided into two sections:
Text messages (
page 337)
Symbol messages (
page 345)
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 the multifunction display are in 
working order before starting your jour-
ney.