94 Controls in detail
Locking and unlocking
The vehicle will lock again automatically
and rearm the anti-theft alarm system*
within approximately 40 seconds of un-
locking if:
neither door nor trunk is opened
the SmartKey is not inserted in the
starter switch
the central locking switch is not
activated
Global locking
Press button‹.
All turn signal lamps flash three
times.
An acoustic signal sounds three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system* is
armed.Selective setting
If you frequently travel alone, you may wish
to reprogram the SmartKey so that press-
ing buttonŒ only unlocks the driver’s
door and the fuel filler flap.
Press and hold buttonsŒ and‹
simultaneously for about 5 seconds un-
til battery check lamp5 (
page 92)
flashes twice.
The SmartKey will then function as
follows:
Unlocking driver’s door and fuel filler
flap
Press buttonŒ once.
All turn signal lamps flash once.
An acoustic signal sounds once.
The locking knob in the driver’s
door moves up.
The anti-theft alarm system* is dis-
armed.Global unlocking
Press buttonŒ twice.
All turn signal lamps flash once.
An acoustic signal sounds once.
The locking knobs in the doors
move up.
The anti-theft alarm system* is dis-
armed.
Global locking
Press button‹.
With the trunk and all doors closed:
All turn signal lamps flash three
times.
An acoustic signal sounds three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system* is
armed.
98 Controls in detail
Locking and unlocking
Trunk emergency release
With the emergency release button, the
trunk can be opened from inside the trunk.
The emergency release button is located
on the inside of the trunk lid.
1Emergency release button
Briefly press emergency release
button1.
The trunk unlocks and the trunk lid
opens.Illumination of the emergency release
button:
The button flashes 30 minutes after
opening the trunk.
The button flashes 60 minutes after
closing the trunk.
Be especially careful when small children
are around.
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. A child’s
unsupervised access to a vehicle could
result in an accident and/or serious
personal injury.
Warning!G
Only drive with the trunk closed as, among
other dangers such as a blocked visibility,
exhaust fumes may enter the vehicle
interior.
iDo not place the SmartKey in the open
trunk. You may lock yourself out.
iIf the vehicle was previously centrally
locked, the trunk will lock automatically after
closing it. The turn signals will flash three times
to confirm locking.
!The trunk lid swings open upwards
automatically.
iThe emergency release button unlocks and
opens the trunk while the vehicle is standing still
or in motion.
iThe emergency release button does not
open the trunk lid if the vehicle battery is dis-
charged or disconnected.
iIf the vehicle has previously been locked
with the SmartKey, opening the trunk from the
inside using the emergency release button will
trigger the anti-theft alarm system*.
To cancel the alarm, do one of the following:
Press buttonŒ or‹ on the
SmartKey.
Insert the SmartKey in the starter switch.
105 Controls in detail
Seats
Lumbar support
The curvature of the front seats can be ad-
justed to help enhance lower back support
and seating comfort.
1Adjustment lever
Move adjustment lever1 in direction
of arrows until you have reached a
comfortable seating position.
Multicontour seats* (Canada only)
This driver’s multicontour seat has a mov-
able seat cushion and inflatable air cush-
ions built into the backrest to provide
additional lumbar and side support.
The seat cushion movement, backrest
cushion height and curvature can be
continuously varied with switches on the
side of the seat after switching on ignition.
1Seat cushion depth
2Backrest bottom
3Backrest center
4Backrest side bolster adjustmentSwitch on the ignition (page 32).
Seat cushion depth
Adjust the seat cushion depth to the
length of your upper leg using
switch1.
Backrest contour
Adjust the contour of the backrest to
the desired position using switches2
and3.
Backrest side bolsters
Adjust the backrest side bolsters so
that they provide good lateral support
using switch4.
iIf, after a period of time, the seat no longer
provides the desired contour, then repeat the ad-
justment procedure.
109 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 50).
Exterior lamp switch
Exterior lamp switch
MOff
Daytime running lamp mode
(
page 111)
UAutomatic headlamp mode
Daytime running lamp mode
(
page 111)
CParking lamps (also tail lamps,
license plate lamps, side marker
lamps, instrument panel lamps)BLow beam headlamps or high beam
headlamps when the combination
switch is pushed forward. The tail
lamps, license plate lamps, side
marker lamps, parking lamps and
instrument panel lamps also come
on.
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 registered, you must have
the headlamps modified for symmetrical low
beams. Relevant information can be obtained at
your authorized Mercedes-Benz Center.
iIf you hear a warning signal you have
forgotten to switch off the headlamps before
opening the driver’s door.
In addition the message
Switch off lights
appears in the multifunction display.
Switch off the headlamps.
110 Controls in detail
Lighting
Manual headlamp mode
The low beam headlamps and the parking
lamps can be switched on and off with the
exterior lamp switch.
Turn the exterior lamp switch to
positionB.
Automatic headlamp mode
The following lamps switch on and off
automatically depending on the brightness
of the ambient light:
Low beam headlamps
Tail and parking lamps
License plate lamps
Side marker lamps
Turn the exterior lamp switch to
positionU.
With the SmartKey in starter switch
position1, only the parking lamps and
the side marker 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.
Warning!G
If the exterior lamp switch is set toU,
the headlamps may switch off
unexpectedly when the system senses
bright ambient 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,
activate headlamps by turning exterior lamp
switch toB when driving or when traffic
and / or ambient lighting conditions require
you to do so.
In low ambient lighting conditions, only
switch from positionU toB with the
vehicle at a standstill in a safe location.
Switching fromU toB 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.
iUSA only:
With the automatic headlamp mode activated
you can switch on the high beam headlamps in
low ambient lighting conditions.
111 Controls in detail
Lighting
Daytime running lamp mode
Turn the exterior lamp switch to
positionM orU.
When the engine is running, the low
beam headlamps are switched on.
In low ambient light conditions, the
following lamps will switch on
additionally:
Tail and parking lamps
License plate lamps
Side marker lamps
Canada only:
The daytime running lamp mode is
mandatory and therefore in a constant
mode.Vehicles with automatic transmission*:
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 and
the side marker lamps switch on
additionally.
turn the exterior lamp switch to
positionB, the manual headlamp
mode has priority over the daytime
running lamp mode.
The corresponding exterior lamps
switch on (
page 109).USA only:
By default, the daytime running lamp mode
is deactivated. Activate the daytime
running lamp mode using the control
system, see “Setting daytime running lamp
mode (USA only)” (
page 139).
When the engine is running, and you turn
the exterior lamp switch to positionC
orB, the manual headlamp mode has
priority over the daytime running lamp
mode.
The corresponding exterior lamps switch
on (
page 109).
iWith the daytime running lamp mode
activated and the engine running, you cannot
switch off the low beam headlamps manually.
iWith the exterior lamp switch in
positionM or U, you cannot switch on the
high beam headlamps.
The high beam flasher is available at all times.
For nighttime driving turn the exterior lamp
switch to positionB to permit activation of
the high beam headlamps.
iWith the daytime running lamp mode
activated and the exterior lamp switch in
positionM, you cannot switch on the high
beam headlamps.
The high beam flasher is available at all times.
For nighttime driving turn the exterior lamp
switch to positionB or U to permit
activation of the high beam headlamps.
113 Controls in detail
Lighting
Combination switch
Combination switch
1High beam
2High beam flasher
High beam
Turn the exterior lamp switch to
positionB (
page 109).
Push the combination switch in
direction of arrow1 to switch on the
high beam.
The high beam headlamp indicator
lampA in the instrument cluster
comes on (
page 24).
Pull the combination switch in direction
of arrow2 to its original position to
switch off the high beam.
The high beam headlamp indicator
lampA in the instrument cluster
goes out.
High beam flasher
Pull the combination switch briefly in
direction of arrow2.
Corner-illuminating front fog lamps*
(C 230 (Canada only), C 280, C 350 and
models with 4MATIC: with Bi-Xenon*
headlamps)
The corner-illuminating front fog lamps
improve illumination of the area in the
direction into which you are turning.The corner-illuminating front fog lamps will
operate with the engine running and with
the exterior lamp switch in
positionB (
page 109)
or
the exterior lamp switch in
positionU (
page 109)
or
the daytime running lamp mode
activated (
page 111)
iWith the automatic headlamp mode activat-
ed: The corner-illuminating front fog lamps will
only come on in low ambient lighting conditions.
iIf you are driving faster than 25 mph
(40 km/h) or have the front fog lamps switched
on, the corner-illuminating front fog lamps
function is not available.
115 Controls in detail
Lighting
Driving in reverse
Switching on corner-illuminating front
fog lamps
Place the gear selector lever (manual
transmission: gearshift lever) in
positionR.
The corner-illuminating front fog lamp
opposite to your steering direction
comes on.
Switching off corner-illuminating front
fog lamps
Place the gear selector lever (manual
transmission: gearshift lever) out of
positionR.
The respective front fog lamp goes out.
Hazard warning flasher
The hazard warning flasher can be
switched on at all times, even with the
SmartKey removed from the starter
switch.
The hazard warning flasher switches on
automatically when an air bag deploys.
The hazard warning flasher switch is
located on the center console.
1Hazard warning flasher switchSwitching on hazard warning flasher
Press hazard warning flasher
switch1.
All turn signal lamps are flashing.
Switching off hazard warning flasher
Press hazard warning flasher switch1
again.
iWith the hazard warning flasher activated
and the combination switch set for either left or
right turn, only the respective left or right turn
signals will operate when the ignition is switched
on (
page 32).
iIf the hazard warning flasher has been
activated automatically, press hazard warning
flasher switch1 once to switch it off.