Page 137 of 521

136 Controls in detailSeats1Seat heating switch
Switch on the ignition (
page 36).
Switching seat heating on
Press switch1 repeatedly until the
desired heating level is set.
One or more red indicator lamps on the
switch show the selected heating level.Switching seat heating off
Press switch1 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 234).
The blue indicator lamps on the switch
show the ventilation level selected:
iIf one or more of the lamps on the seat
heating switch are flashing, 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.
Level3
Three indicator lamps on
(highest level)
2
Two indicator lamps on
1
One indicator lamp on
(lowest level)
off
No indicator lamp on
Page 138 of 521
137 Controls in detailSeats
1Seat ventilation switch
Switch on the ignition (
page 36).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 234).
iIf one or more of the lamps on the seat
ventilation switch are flashing, there is
insufficient voltage available since too
many electrical consumers are turned
on. The seat ventilation switches off au-
tomatically.
The seat ventilation will switch back on
again automatically as soon as suffi-
cient voltage is available.
Page 139 of 521

138 Controls in detailMemory functionPrior to operating the vehicle, the driver
should check and adjust the seat height,
seat position fore and aft, and seat back-
rest angle if necessary, to ensure adequate
control, reach and comfort. The head re-
straint should also be adjusted for proper
height. See also the section on air bags
(page 67) for more information on prop-
er seat positioning.
In addition, adjust the steering wheel to
ensure adequate control, reach, operation
and comfort. Both the interior and exterior
rear view mirrors should be adjusted for
adequate rear vision.
Fasten seat belts. Infants and small chil-
dren should be seated in a properly se-
cured restraint system that complies with
U.S. Federal Motor Vehicle Safety Stan-
dards 213 and 225 and Canadian Motor
Vehicle Safety Standards 213 and 210.2.The following settings are stored when us-
ing the buttons on the driver’s door:
Driver’s seat, backrest, head restraint
position and settings for multicontour
seat
Steering wheel position
Exterior rear view mirror positions
The following settings are stored when us-
ing the buttons on the front passenger
door:
Front passenger seat, backrest, head
restraint position and settings for mul-
ticontour seat
Warning!
G
Do not activate the memory function while
driving. Activating the memory function
while driving could cause the driver to lose
control of the vehicle.
Page 140 of 521
139 Controls in detail
Memory function
The memory button and memory position
buttons are located on the door.
MMemory button
1, 2, 3Memory position button
Switch on the ignition (
page 36).
or
Open the respective door.
Storing positions into memory
Adjust the seats, steering wheel and
exterior rear view mirrors to the de-
sired position (
page 40).
Press memory buttonM.
Release memory buttonM and press
memory position button 1, 2 or 3 with-
in 3 seconds.
All the settings are stored to the select-
ed position.
Recalling positions from memory
Press and hold memory position
button1, 2 or3 until the seat, steering
wheel and exterior rear view mirrors
have completely moved to the stored
positions.!Do not operate the power seats using
the memory button if the seat backrest
is in an excessively reclined position.
Doing so could cause damage to front
or rear seats.iReleasing the memory position button
stops movement to the stored posi-
tions immediately.
Page 141 of 521
140 Controls in detailMemory functionStoring exterior rear view mirror park-ing position
For easier parking, you can adjust the pas-
senger-side exterior rear view mirror so
that you can see the right rear wheel as
soon as you engage reverse gearR.
For information on activating the parking
position, see “Activating exterior rear view
mirror parking position” (
page 198).
1Passenger side, exterior rear view mir-
ror
2Adjustment button
Stop the vehicle.
Switch on the ignition (
page 36).
Press button1.
The passenger-side exterior rear view
mirror is selected.
Adjust the exterior rear view mirror
with button2 so that you see the rear
wheel and the road curb.
Press memory button M.
Within 3 seconds, press bottom of ad-
justment button2.
The parking position is stored if the
mirror does not move.iIf the mirror does move, repeat the
above steps. After the setting is stored,
you can move the mirror again.
Page 142 of 521

141 Controls in detail
Lighting
Lighting
For information on how to switch on the
headlamps and use the turn signals, see
“Switching on headlamps” (
page 54)
and see “Turn signals” (
page 55).
Exterior lamp switch
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.Exterior lamp switchMOff
Daytime running lamp mode
(
page 142)
UAutomatic headlamp mode
Daytime running lamp mode
(page 142)
CParking lamps (also tail lamps, li-
cense plate lamps, side marker
lamps, instrument panel lamps)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)
‡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 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.iVehicles equipped with active Bi-Xe-
non* headlamps:
The active Bi-Xenon headlamps moni-
tor your steering angle and driving
speed, then automatically shift their
beams to either side to better follow
the curvature of the road ahead, in-
creasing usable illumination over con-
ventional headlamps.
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
Switch off lamps
appears in the multifunction display.
Page 143 of 521

142 Controls in detailLightingManual headlamp mode
The low beam headlamps and the parking
lamps can be switched on and 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 and parking lamps
License plate lamps
Side marker lamps
Turn exterior lamp switch to
positionU.
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 automatically
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 lamps
For nighttime driving you should turn the
exterior lamp switch to positionB to
permit activation of the high beam head-
lamps.
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.
Page 144 of 521

143 Controls in detail
Lighting
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 54).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 170).
When the engine is running, and you turn
the exterior lamp switch to
positionCorB, the manual head-
lamp mode has priority over the daytime
running lamp mode.
The corresponding exterior lamps switch
on (
page 54).
iWith the daytime running lamp mode
activated and the exterior lamp switch
in positionM, the high beam head-
lamps cannot be switched on.
The high beam flasher is available at all
times.