Page 112 of 442
112 Controls in detailSeatsDrive - Dynamic seat*
The Drive - Dynamic seat automatically ad-
justs the lateral support provided by the
backrest to your driving style.
1Backrest center
2Backrest bottom
3Seat cushion depth
4Activate drive dynamic function
5Backrest side bolsters
6Massage functionThe drive - Dynamic seat electronically con-
trols the air pressure in the air chambers of
the backrest side bolsters. This function
improves driving comfort and pleasure.
Activating
Press button4.
The indicator lamp in the button comes
on for five seconds and the fallowing
display appears in the multi-function
display for about five seconds.Deactivating
Press button4 again.
The indicator lamp in the button goes
out.iYou can adjust the characteristics of
the Drive - Dynamic seat using the con-
trol system (
page 153).
iWhen the engine is turned off, the last
cushion setting is retained in memory.
The cushion is automatically adjusted
to this setting when the engine is re-
started.
Page 113 of 442

113 Controls in detailSeats
Massage function (PULSE)
The massage function can help prevent
muscle tension during long drives.
Press button6.
The indicator lamp in button2 comes
on. The air cushions in the lumbar area
pulsate.
Heated seats*
Both switches for the front seats are locat-
ed in the center console. The red indicator
lamps in the switch come on to show
which heating level you have selected.
1Seat heating switch
Make sure the ignition is switched on.
All lights in the instrument cluster
come on.
Switching seat heating on
Press button1 repeatedly until the
desired heating level is set.
One or more red indicator lamps on the
switch show the selected heater level
iThe massage function turns off auto-
matically after approximately five min-
utes.
Leveloff
No indicator lamps on
1
One indicator lamp on
2
Two indicator lamps onThe seat heater automatically
switches to level 1 after approxi-
mately ten minutes.
3
Three indicator lamps onThe seat heater automatically
switches to level 2 after approxi-
mately five minutes.
Page 114 of 442

114 Controls in detailSeatsSwitching seat heating off
Press button1 repeatedly until all in-
dicator lamps go out.
Seat ventilation*
The switch is located on the center con-
sole. Seat ventilation can be activated
manually with the ignition on, or by the
summer opening feature (
page 199).
The blue indicator lamps on the switch
show the ventilation level selected:
1Seat ventilation switch
Make sure the ignition has been
switched on.
All lights in the instrument cluster
come on.
iThe seat heating will be automatically
switched off after approximately
20 minutes.!If one or more of the lamps on the seat
heater switch are flashing, there is in-
sufficient voltage available since too
many electrical consumers are turned
on. The seat heater switches off auto-
matically.
The seat heater will switch back on
again automatically as soon as suffi-
cient voltage is available.
Level3
Three indicator lamps lit
2
Two indicator lamps lit
1
One indicator lamp lit
off
No indicator lamp lit
Page 115 of 442
115 Controls in detailSeats
Switching seat ventilation on
Press button1 repeatedly until the
desired ventilation level is set.
Switching seat ventilation off
Press button1 repeatedly until all in-
dicator lamps go out.iThe seat ventilation is automatically set
to the highest level if activated via sum-
mer opening feature (
page 199).
!If one or all of the lamps flash on the
seat ventilation switch, there is insuffi-
cient voltage due to too many electrical
consumers being switched on. The seat
ventilation switches off automatically.
The seat ventilation will switch back on
again automatically as soon as suffi-
cient voltage is available.
Page 119 of 442
119 Controls in detail
Lighting
Lighting
For notes on how to switch on the head-
lamps and use the turn signals, see the
“Getting started” section (
page 47).
Exterior lamp switch
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.MOff
UAutomatic headlamp mode
CParking lamps (also side marker
lamps, tail lamps, license plate
lamps, instrument panel lamps)
Canada only:
When engine is running, the low
beam is also switched on.
BParking lamps plus low beam or
high beam headlamps (combination
switch pushed forward).
ˆStanding lamps, right (turn left one
stop)
‚Standing lamps, left (turn left two
stops)
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
Center.
Page 120 of 442

120 Controls in detailLighting
Manual headlamp mode
The low beam headlamps and parking
lamps can be switched on and off with the
exterior lamp switch (
page 119).
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.
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
Switch off lights!
appears in the multifunction display
iWith the daytime running lamp mode
activated and the engine running, the
low beam headlamps cannot be
switched off manually.
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 121 of 442

121 Controls in detail
Lighting
Daytime running lamp mode
Turn exterior lamp switch to
positionM orU.
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 gear to
positionN orP, the low beam switches off
(with a three-minute delay).
For nighttime driving you should turn the
exterior lamp switch to positionB 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 positionM.
To activate the daytime running lamp
mode, see “Setting daytime running lamp
mode” (
page 146).
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 147) and “Setting night security il-
lumination” (
page 148).
iWith the daytime running lamp mode
activated, the low beam headlamps will
not be switched off automatically.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 122).
iSee notes on the exterior lamp switch
(page 119).
Page 123 of 442
123 Controls in detail
Lighting
Combination switch
The combination switch is located on the
left side of the steering column.
1High beam
2High beam flasher
Switching on high beams
Turn exterior lamp switch to
positionB (
page 119).
Push the combination switch in
direction1.
The high beam indicatorA on the
instrument cluster is illuminated
(page 22).
High beam flasher
Pull the combination switch briefly in
direction2.
Hazard warning flasher
The hazard warning flasher can be activat-
ed with the ignition 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 switch