
The system automatically switches off
approximately 35 minutes after it is set to
level1.
Switching the rear-seat heating on/off
XTo switch on: press button:repeatedly
until the desired heating level is set.
XTo switch off: press button:repeatedly
until all the indicator lamps go out.
iThe system automatically switches from
level 3to level 2after approximately eight
minutes.
The system automatically switches down
from level 2to level 1after approximately ten
minutes.
The system automatically switches off
approximately 35 minutes after it is set to
level 1.
Problems with the seat heating
If the on-board voltage is too low, the seat heat-
ing is switched off automatically.
XSwitch off electrical consumers that you do
not need, such as the rear window defroster
or interior lighting.
If the on-board voltage is only interrupted
briefly, the seat heating will switch back on
automatically. If the seat heating is not
switched on automatically:
XSwitch on the seat heating manually
(Ypage 76)
Switching the seat ventilation on/off
Switching on/off
Seat ventilation is only available for the front
seats.
The three blue indicator lamps in the buttons
indicate the ventilation level you have selected.
XMake sure that the SmartKey is in position 2
(Ypage 112) in the ignition lock.
XTo switch on: press button:repeatedly
until the desired ventilation level is set.
iIf you open the side windows and the sliding
sunroof using the SmartKey (Ypage 68), the
driver's seat ventilation automatically
switches to the highest level.
XTo switch off: press button:repeatedly
until all the indicator lamps go out.
iIf the battery voltage is too low, the seat
ventilation may switch off.
Problems with the seat ventilation
If one or all of the indicator lamps in the seat
ventilation button are flashing, the seat ventila-
tion has switched off automatically. The vehi-
cle's electrical system voltage is too low
because too many electrical consumers are
switched on.
XSwitch off electrical consumers that you do
not need, such as the rear window defroster
or interior lighting.
Once the battery is sufficiently charged, the
seat ventilation will switch back on automat-
ically.
Seats77
Seats, steering wheel and mirrors
Z

Steering wheel
Important safety notes
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
GWARNING
Children could injure themselves if they
adjust the steering wheel. There is a risk of
injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The electrically adjustable steering wheel can
still be adjusted when there is no SmartKey in
the ignition lock.
Adjusting the steering wheel
:To adjust the steering wheel height
;To adjust the steering wheel position (fore-
and-aft adjustment)
iIf the driver's door is open, the steering
wheel can be adjusted for up to 30 minutes
after the ignition has been switched off.
iFurther related subjects:
REASY-ENTRY/EXIT feature (Ypage 79)
RStoring settings (Ypage 82)
Steering wheel heating
Activating/deactivating
:To switch on the steering-wheel heating
;To switch off the steering-wheel heating
=Indicator lamp
The steering-wheel heating heats the leather
areas of the steering wheel.
XTo activate: make sure that the SmartKey is
in position 1or 2in the ignition lock.
XTurn the catch in the direction of arrow :.
Indicator lamp =lights up.
XTo deactivate: make sure that the SmartKey
is in position 1or 2in the ignition lock.
XTurn the catch in the direction of arrow ;.
Indicator lamp =goes out.
iThe steering wheel heating does not switch
off automatically.
iThe steering wheel heating may switch off
temporarily if:
Rthe temperature in the vehicle interior is
above 86 ‡ (30 †)
Rthe temperature of the steering wheel is
above 95 ‡ (35 †)
Indicator lamp =remains on.
iThe steering wheel heating is deactivated if
you remove the SmartKey from the ignition
lock.
78Steering wheel
Seats, steering wheel and mirrors

Problems with the steering wheel heat-
ing
:To switch on the steering-wheel heating
;To switch off the steering-wheel heating
=Indicator lamp
If steering wheel heating indicator lamp =is
flashing, the steering wheel heating has
switched off automatically. The vehicle's elec-
trical system voltage is too low because too
many electrical consumers are switched on.
XSwitch off electrical consumers that you do
not need, such as the rear window defroster
or interior lighting.
Once the battery is sufficiently charged, the
steering wheel heating will switch back on
automatically.
Steering wheel EASY-ENTRY/EXIT fea-
ture
Important safety notes
GWARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel and the driver's seat, you
and other vehicle occupants – particularly
children – could become trapped. There is a
risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the seat and
the steering wheel.
If somebody becomes trapped:
Rpress one of the memory function position
buttons, or
Rpress one of the memory function memory
buttons, or
Rmove the switch for steering wheel adjust-
ment in the opposite direction to that in
which the steering wheel is moving
The adjustment process is stopped.
GWARNING
If you drive off while the EASY-ENTRY/EXIT
feature is making adjustments, you could lose
control of the vehicle. There is a risk of an
accident.
Always wait until the adjustment process is
complete before driving off.
!Do not activate the EASY-ENTRY/EXIT fea-
ture, if the seat backrest is reclined too far
backwards. This can damage the front or rear
seats. You must first move the backrest to a
vertical position.
The EASY-ENTRY/EXIT feature makes getting in
and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board computer
(
Ypage 181).
Position of the steering wheel when the
EASY-ENTRY/EXIT feature is active
The steering wheel moves upwards and towards
the dashboard if:
Ryou remove the SmartKey from the ignition
lock or
Ryou open the driver's door with the SmartKey
in position 0or 1in the ignition lock
iThe steering wheel only moves upwards and
towards the dashboard if it has not already
reached the upper steering limiter.
Steering wheel79
Seats, steering wheel and mirrors
Z

Setting the exterior mirrors
If the battery has been disconnected or com-
pletely discharged, the exterior mirrors must be
reset. The exterior mirrors will otherwise not
fold in when you select the "Fold in mirrors when
locking" function in the on-board computer
(
Ypage 181).
XMake sure that the SmartKey is in position 1
in the ignition lock (Ypage 112).
XBriefly press :.
Folding the exterior mirrors in/out
automatically
If the "Fold in mirrors when locking" function is
activated in the on-board computer
(
Ypage 181):
Rthe exterior mirrors fold in automatically as
soon as you lock the vehicle from the outside.
Rthe exterior mirrors fold out again automati-
cally as soon as you unlock the vehicle and
then open the driver's or front-passenger
door.
Exterior mirror pushed out of position
XPress button :repeatedly until you hear the
mirror engage in position.
The mirror housing is engaged again and you
can adjust the exterior mirrors as usual
(
Ypage 80).
Automatic anti-glare mirrors
The rear-view mirror and the exterior mirror on
the driver's side automatically go into anti-glare
mode if:
Rthe ignition is switched on and
Rincident light from headlamps strikes the sen-
sor in the rear-view mirror
iThe mirrors do not go into anti-glare mode if
reverse gear is engaged or if the interior light- ing is switched on.
Parking position for the exterior mir-
ror on the front-passenger side
Setting/storing the parking position
Using reverse gear
:Left-hand exterior mirror
;Right-hand exterior mirror
=Adjustment button
?Memory button
You can position the front-passenger side exte- rior mirror in such a way that you can see the
rear wheel on that side as soon as you engage
reverse gear. You can store this position.
XMake sure that the vehicle is stationary and
that the SmartKey is in position 2in the igni-
tion lock (
Ypage 112).
XPress button ;for the exterior mirror on the
front-passenger side.
XEngage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.
XUse adjustment button =to adjust the exte-
rior mirror to a position that allows you to see
the rear wheel and the curb.
The parking position is stored.
Mirrors81
Seats, steering wheel and mirrors
Z

Useful information
i
This Operator's Manual describes all models
and all standard and optional equipment of
your vehicle available at the time of publica-
tion of the Operator's Manual. Country-spe-
cific differences are possible. Please note
that your vehicle may not be equipped with all
features described. This also applies to
safety-related systems and functions.
iRead the information on qualified specialist
workshops: (Ypage 23).
Exterior lighting
Important safety notes
For reasons of safety, Mercedes-Benz recom-
mends that you drive with the lights switched on
even during the daytime. In some countries,
operation of the headlamps varies due to legal
requirements and self-imposed obligations.
Light switch
Operation
!Switch off the parking lamps and low-beam
headlamps when you leave the vehicle. This
prevents the battery from discharging.
!If the battery has been excessively dis-
charged, the parking lamps or standing lamps
are automatically switched off to enable the
next engine start. Always park your vehicle
safely and sufficiently lit according to legal
standards. Avoid the continuous use of the
T parking lamps for several hours. If pos-
sible, switch on the Xright or the Wleft
standing lamp.
1 WLeft-hand standing lamps
2XRight-hand standing lamps
3TParking lamps, side marker lamps,
license plate and instrument cluster
lighting
4ÃAutomatic headlamp mode/daytime
running lamps
5LLow-beam/high-beam headlamps
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
XTurn the light switch to Ã.
The turn signals, high-beam headlamps and the
high-beam flasher are operated using the com-
bination switch (
Ypage 88).
The exterior lighting (except the parking/stand-
ing lamps) switches off automatically if you:
Rremove the SmartKey from the ignition lock
Ropen the driver's door with the SmartKey in
position 0in the ignition lock.
Low-beam headlamps
1 WLeft-hand standing lamps
2XRight-hand standing lamps
3TParking lamps, side marker lamps,
license plate and instrument cluster
lighting
84Exterior lighting
Lights and windshield wipers

4ÃAutomatic headlamp mode/daytime
running lamps
5LLow-beam/high-beam headlamps
XTo switch on the low-beam headlamps:
turn the SmartKey in the ignition lock to posi-
tion 2or start the engine.
XTurn the light switch to L.
The L indicator lamp in the instrument
cluster lights up.
Daytime running lamps
Daytime running lamps in Canada
1 WLeft-hand standing lamps
2XRight-hand standing lamps
3TParking lamps, side marker lamps,
license plate and instrument cluster
lighting
4ÃAutomatic headlamp mode/daytime
running lamps
5LLow-beam/high-beam headlamps
The daytime running lamps function is required
by law in Canada. It cannot therefore be deac-
tivated.
XTurn the light switch to Ã.
With the engine running: depending on the
ambient light, the daytime running lamps or
the low-beam headlamps are switched on.
When the low-beam headlamps are switched
on, the Lindicator lamp in the instrument
cluster lights up.
When the engine is running and the vehicle is
stationary: if you move the selector lever from a
drive position to P, the daytime running lamps/
low-beam headlamps go out after three
minutes.
When the engine is running, the vehicle is sta-
tionary and in bright ambient light: if you turn the light switch to
T, the daytime running lamps
and parking lamps switch on.
If the engine is running and you turn the light
switch to L, the manual settings take prec-
edence over the daytime running lamps.
Daytime running lamps in the USA
1 WLeft-hand standing lamps
2XRight-hand standing lamps
3TParking lamps, side marker lamps,
license plate and instrument cluster
lighting
4ÃAutomatic headlamp mode/daytime
running lamps
5LLow-beam/high-beam headlamps
In the USA, the daytime running lamps are deac- tivated upon delivery from the factory.
XTo activate the daytime running lamps:
activate the daytime running lamps function
in the on-board computer (
Ypage 179).
XTurn the light switch to Ã.
With the engine running: depending on the
ambient light, the daytime running lamps or
the low-beam headlamps are switched on.
When the low-beam headlamps are switched
on, the Lindicator lamp in the instrument
cluster lights up.
If the engine is running and you turn the light
switch to TorL, the manual settings
take precedence over the daytime running
lamps.
Automatic headlamp mode
GWARNING
When the light switch is set to Ã, the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
Exterior lighting85
Lights and windshield wiper s
Z

conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
L.
The automatic headlamp feature is only an aid.
The driver is responsible for the vehicle's light-
ing at all times.
1 WLeft-hand standing lamps
2XRight-hand standing lamps
3TParking lamps, side marker lamps,
license plate and instrument cluster
lighting
4ÃAutomatic headlamp mode/daytime
running lamps
5LLow-beam/high-beam headlamps
XTo switch on automatic headlamp mode:
turn the light switch to Ã.
SmartKey in position 1in the ignition lock: the
parking lamps are switched on or off auto-
matically depending on the brightness of the
ambient light
With the engine running: if you have activated
the daytime running lamps function in the on-
board computer, the daytime running lamps
or the low-beam headlamps are switched on
or off automatically depending on the bright-
ness of the ambient light.
When the low-beam headlamps are switched
on, the Lindicator lamp in the instrument
cluster lights up.
Rear fog lamp
1 WLeft-hand standing lamps
2XRight-hand standing lamps
3TParking lamps, side marker lamps,
license plate and instrument cluster
lighting
4ÃAutomatic headlamp mode/daytime
running lamps
5LLow-beam/high-beam headlamps
BRRear fog lamp
XTo switch on the rear fog lamp: turn the
SmartKey in the ignition lock to position 2or
start the engine.
XTurn the light switch to LorÃ.
XPress the Rbutton.
The yellow Rindicator lamp in the instru-
ment cluster lights up.
XTo switch off the rear fog lamp: press the
R button.
The yellow Rindicator lamp in the instru-
ment cluster goes out.
86Exterior lighting
Lights and windshield wipers

Parking lamps
1WLeft-hand standing lamps
2XRight-hand standing lamps
3TParking lamps, side marker lamps,
license plate and instrument cluster
lighting
4ÃAutomatic headlamp mode/daytime
running lamps
5LLow-beam/high-beam headlamps
BRRear fog lamp
XTo switch on: turn the light switch to T.
Standing lamps
1WLeft-hand standing lamps
2XRight-hand standing lamps
3TParking lamps, side marker lamps,
license plate and instrument cluster
lighting
4ÃAutomatic headlamp mode/daytime
running lamps
5LLow-beam/high-beam headlamps
BRRear fog lamp
Switching on the standing lamps ensures the
corresponding side of the vehicle is illuminated.
XTo switch on the standing lamps: the
SmartKey should not be in the ignition lock or
it should be in position 0(
Ypage 112).
XTurn the light switch to W(left-hand side of
the vehicle) or X(right-hand side of the
vehicle).
Headlamp cleaning system
The headlamps are cleaned automatically if the
"Wipe with washer fluid" function is operated
ten times while the lights are on and the engine
is running (
Ypage 96). When you switch off
Exterior lighting87
Lights and windshield wipers
Z