Page 109 of 416

109 Controls in detailSeats
Massage function (PULSE)
You can reduce muscle tension during long 
trips by periodically using the massage 
function. 
Press button3.
The indicator lamp on button3 lights 
up. The air cushions in the lumbar re-
gion inflate and deflate (pulse).
Drive-dynamic seat*
The drive-dynamic seat automatically ad-
justs the lateral support provided by the 
seat backrest to your driving style.
1Activate drive-dynamic function
The drive-dynamic seat electronically con-
trols the air pressure in the air chambers of 
the seat backrest side bolsters. This func-
tion improves driving comfort and plea-
sure.Activating
Press button1.
The indicator lamp in the button lights 
up.
Deactivating
Press button1 again.
The indicator lamp in the button goes 
out.
iThe massage function switches off au-
tomatically after approximately eight 
minutes. The indicator lamp extinguish-
es.
iYou can adjust the characteristics of 
the drive-dynamic seat using the con-
trol system (
page 159). 
     
        
        Page 111 of 416
111 Controls in detailSeats
Seat heating*
Vehicles without seat ventilation*
The switch is located on the door.
1Normal heating
2Rapid heating
Make sure that the ignition is switched 
on.
All the lamps in the instrument cluster 
light up.Switching on seat heating
Press switch1.
A red indicator lamp above the switch 
lights up. 
Switching off seat heating
Press switch1 again. Rapid seat heating mode
Press switch2.
Both red indicator lamps above the 
switch light up. 
iThe seat heating will be automatically 
switched off after approximately 
30 minutes. 
iThe system switches over to normal 
heating mode after approximately five 
minutes. Only the right-hand indicator 
lamp remains lit.  
     
        
        Page 112 of 416
112 Controls in detailSeatsSwitching off rapid seat heating mode
Press switch2 again. Vehicles with seat ventilation*
The switch is located on the door. The red 
indicator lamps on the switch show the 
heating level selected:
1Seat heating switch
Make sure the ignition is switched on.
All the lamps in the instrument cluster 
light up.
Switching on seat heating
Press switch1 twice.
A red indicator lamp above the switch 
lights up. 
Switching off seat heating
Press switch1 again. 
!If one or both of the lamps on the seat 
heating switch are blinking, there is in-
sufficient voltage available since too 
many electrical consumers are turned 
on. The seat heating switches off auto-
matically.
The seat heating will switch back on 
again automatically as soon as suffi-
cient voltage is available.
Level2
Two indicator lamps lit
1
One indicator lamp lit
off
No indicator lamp lit
iThe seat heating will be automatically 
switched off after approximately 
30 minutes.  
     
        
        Page 120 of 416

120 Controls in detailLighting
LightingFor notes on how to switch on the head-
lamps and use the turn signals, see the 
“Getting started” section (
page 46).
Exterior lamp switch
The exterior lamp switch is located on the 
dashboard to the left of the steering wheel.
M
Off
U
Automatic headlamp mode
C
Parking lamps (also side marker 
lamps, tail lamps, license plate 
lamps, instrument panel lamps)
Canada only: When engine is run-
ning, the low beam is also switched 
on.
B
Parking lamps plus low beam or 
high beam headlamps (combination 
switch pushed forward).
ˆ
Standing lamps, right (turn left one 
stop)
‚
Standing lamps, left (turn left two 
stops)
iIf you remove the SmartKey and open 
the driver’s door while the parking 
lamps or low beam headlamps are 
switched on, then: 
A warning sounds.
$
 appears in the multifunction 
display. 
The message 
TURN OFF LIGHTS!
 ap-
pears in the multifunction display.
iWith the daytime running lamp mode 
activated and the engine running, the 
low beam headlamps cannot be 
switched off manually. 
     
        
        Page 121 of 416

121 Controls in detail
Lighting
Manual 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 120).
Automatic headlamp mode
The parking lamps, low beam headlamps 
and license plate lamps switch on and off 
automatically depending on the brightness 
of the ambient light.
Turn the exterior lamp switch to 
U
.
iWith the daytime running lamp mode 
activated, the low beam headlamps will 
not switch off automatically.
iFront fog lamps and rear fog lamp can 
not be switched on manually with exte-
rior lamp switch in position
U
. To 
activate the fog lamps, turn exterior 
lamp switch to position
B
 and pull 
the exterior lamp switch to first or 
second stop (
page 122).
Warning!
G
In automatic headlamp mode, the head-
lamps will not be automatically switched on 
under foggy conditions. To minimize risk to 
you and to others, activate headlamps by 
turning exterior lamp switch to 
B
.
The driver is responsible for the operation of 
the vehicle’s lights at all times. The automat-
ic headlamp feature is only an aid to the driv-
er. Switch on the vehicle lights manually 
when driving or when traffic conditions re-
quire you to do so.
iIf you drive in countries where vehicles 
drive on the other side of the road than 
the country where the vehicle is regis-
tered, you must have the headlamps 
modified for symmetrical low beams. 
Relevant information can be obtained 
at your authorized Mercedes-Benz Cen-
ter. 
     
        
        Page 122 of 416

122 Controls in detailLightingDaytime running lamp mode
Turn exterior lamp switch to 
position
M
 or
U
.
When the engine is running, the low beam 
headlamps are automatically switched on. 
In low ambient light conditions the parking 
lamps will also switch on.
Canada only
When you shift from a driving position to 
positionN orP, the low beam switches off 
(with a three-minute delay).
For nighttime driving you should turn the 
exterior lamp switch to position
B
 to 
permit activation of the high beam head-
lamps.USA only
The high beam headlamps can also be ac-
tivated when driving with the daytime run-
ning lamp mode activated and exterior 
lamp switch in position
M
.
To activate the daytime running lamp 
mode, see “Setting daytime running lamp 
mode (USA only)” (
page 151).Locator lighting and night security illu-
mination
For information on locator lighting and 
night security illumination, see 
(
page 151) and (
page 152).
Switching on front fog lamps
Make sure that the low beam head-
lamps are switched on.
Pull out exterior lamp switch to first 
stop.
The green indicator lamp
‡
 in the 
lamp switch lights up.
iSee notes on the exterior lamp switch 
(page 120).
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 allow-
able lamp operation. 
     
        
        Page 123 of 416
123 Controls in detail
Lighting
Switching on rear fog lamp
Make sure that the low beam head-
lamps are switched on.
Pull out exterior lamp switch to second 
stop.
The yellow indicator lamp
†
 in the 
lamp switch lights up.
Combination switch
The combination switch is located on the 
left side of the steering column.
1High beam
2High beam flasherSwitching on high beams
Turn exterior lamp switch to 
position
B
 (page 120).
Push the combination switch in 
direction1.
The high beam symbol is illuminated on 
the instrument cluster (
page 22).
High beam flasher
Pull the combination switch briefly in 
direction2. 
     
        
        Page 124 of 416
124 Controls in detailLightingHazard warning flasher
The hazard warning flasher can be activat-
ed with the starter switched on or off. It is 
activated automatically when an airbag is 
deployed.
The switch is located on the center con-
sole.
1Hazard warning flasher switchSwitching on the hazard warning 
flasher
Press the hazard warning flasher 
switch.
All turn signals will blink.
Switching off the hazard warning 
flasher
Press hazard warning flasher switch 
again.
Interior lighting
The controls are located in the overhead 
control panel.
1Left front reading lamp
2Rear interior lights
3Right front reading lamp
4Rocker switch for automatic control 
system
iWith the hazard warning flasher acti-
vated and the combination switch set 
for either left or right turn, only the re-
spective left or right turn signals will 
operate when the SmartKey in the 
starter switch is in position1 or2.iIf the hazard warning flasher was acti-
vated automatically, press switch1 
twice.