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112LightingHeadlight range
adjustment
Manual headlight range
adjustment
To adapt headlight range to the
vehicle load to prevent dazzling: turn
thumb wheel ? to required position.
0=front seats occupied1=all seats occupied2=all seats occupied and load
compartment laden3=driver's seat occupied and load
compartment ladenHeadlights when driving
abroad
The asymmetrical headlight beam
extends visibility at the edge of the
road at the passenger side.
However, when driving in countries
where traffic drives on the opposite
side of the road, adjust the headlights to prevent dazzling of oncoming
traffic.
There are two adjuster elements on
each headlight housing.
Turn both adjuster elements on each
headlight housing 1
/2 turn with a
size six hexagon key anticlockwise to set to right hand traffic mode.
Therefore insert the key in the
guidance as shown in the illustration.
Alternatively, a Phillips head
screwdriver size three can be used for
setting.
To reset to left hand traffic mode, turn adjuster elements 1
/2 turn clockwise.
Daytime running lights Daytime running light increases
visibility of the vehicle during daylight.
They are switched on automatically
when ignition is on.
Versions with automatic light control The system switches between
daytime running light and headlights automatically, depending on the
lighting conditions and information
given by the rain sensor system.
Automatic light control 3 111.
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Lighting113Xenon lighting systemXenon lighting system includes ■ xenon headlights for low and high beam
■ high beam assist
■ corner lighting
■ reversing function
Xenon headlights Xenon headlights for low and high
beam ensure better visibility under all
conditions.
Operation is the same as for halogen headlights.
Light switch 3 110 , high beam 3 111,
headlight flash 3 111 , headlight range
adjustment 3 112, headlights when
driving abroad 3 112.
Automatic light control 3 111.
High beam assist This feature allows high beam xenon
lights to function as the main driving
light at night and when vehicle is
faster than 25 mph.It switches automatically to low beam when:
■ The camera in the windscreen detects the lights of oncoming or
preceding vehicles.
■ The vehicle is slower than 12 mph.
■ It is foggy or snowy.
■ Driving in urban areas.
If there are no restrictions detected,
the system switches back to high
beam.
ActivationThe high beam assist is activated by
pushing the indicator lever twice at a
speed above 25 mph.
The green control indicator l
illuminates continuously when the
assist is activated, the blue one 7
illuminates when high beam is on.
Control indicator l 3 94.
Deactivation
Push indicator lever once. It is also
deactivated when front fog lights are
switched on.
If a headlight flash is activated when
the high beam is on, the high beam
assist will be deactivated.
If a headlight flash is activated when
the high beam is off, the high beam
assist will remain activated.
The latest setting of the high beam
assist will remain after the ignition is
switched on again.
Page 117 of 261
Lighting115
With a trailer connected, turn signal
flashes six times when pressing the
lever until resistance is felt and then
releasing.
Move the lever to the resistance point
and hold for longer indication.
Switch the turn signal off manually by moving the lever to its original
position.
Front fog lights
Operated by pressing >.
Light switch in position AUTO:
switching on front fog lights will switch the low beam on automatically.
Rear fog lights
Operated by pressing r.
Light switch in position AUTO:
switching on rear fog light will switch
on headlights automatically.
Parking lights
When the vehicle is parked, the
parking lights on one side can be
activated:
1. Switch off the ignition.
2. Move the turn signal lever all the way up (right parking lights) or
down (left parking lights).
Confirmed by a signal and the
corresponding turn signal control
indicator.
Page 118 of 261
116LightingReversing lightsThe reversing light comes on when
the ignition is on and reverse gear is
selected.
Misted light covers
The inside of the light housing may
mist up briefly in poor, wet and cold weather conditions, in heavy rain or
after washing. The mist disappears
quickly by itself; to help switch on the
headlights.Interior lighting
Instrument panel
illumination control
Brightness of the following lights can
be adjusted when the exterior lights
are on:
■ instrument panel illumination
■ dome light
■ ambient light
■ Info-Display
■ illuminated switches and operation elements
Turn thumb wheel A and hold until
the desired brightness is obtained.
On vehicles with automatic light
control, the brightness can only be
adjusted when the exterior lights are
on and the light sensor detects night
conditions.
Interior lights Front courtesy light
Page 119 of 261

Lighting117
Operate rocker switch:centre
position
w=automatic switching on
when opening a door.
Turns off after a delaypress I=permanently onpress 0=permanently off
Front courtesy light with reading
lights
When opening a door, the courtesy
light automatically switches on and
then off after a delay.
Pressing c switches courtesy light
on or off manually.
Switching on ignition will turn off
courtesy light.
When exterior lighting has been on
previously, courtesy light will turn on
when ignition is switched off.
Notice
In the event of an accident with
airbag deployment, the courtesy lights are turned on automatically.
Rear courtesy lights
Left and right lamps are separately
switchable.
Operate rocker switches:centre
position=automatic switching on
when opening a door.
Turns off after a delaypress I=permanently onpress 0=permanently off
Dome light
Spotlight incorporated in the inside
mirror housing comes on when
headlights are switched on.
Dome light illuminates gear shifting
console indirectly.
Ambient light The ambient light consists of indirect
red lights in the doors, in the
instrument panel below the heating and ventilation unit and in the
passenger foot well. It can be dimmed
with the thumb wheel A together with
the instrument panel illumination
3 116.
Ambient light comes on automatically when switching off ignition and
extinguishes after opening a door.
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118LightingReading lights
Operated by pressing 2 for the left
and right side.
Lighting features
Entry lighting
Welcome lighting
The following lights are switched on
for a short time by unlocking the
vehicle with the radio remote control:
■ headlights
■ tail lights
■ number plate lights
■ instrument panel light
■ interior lights
Some functions are only operable
when it is dark outside to facilitate locating the vehicle.
The lighting switches off immediately
when the ignition key is turned to
position 1 3 131.
Activation or deactivation of this
function can be changed in the
Info-Display.
Vehicle personalisation 3 106.
The settings can be saved for the key being used 3 22.The following lights will additionally
switch on when the driver's door is
opened:
■ all switches
■ Driver Information Centre
Exit lighting
The following lights switch on if the
key is removed from the ignition
switch:
■ interior lights
■ instrument panel light (only when it is dark)
They will switch off automatically after
a delay and will be activated again if
the driver's door is opened.
Path lightingHeadlights, tail lights and number
plate lights illuminate the surrounding
area for an adjustable time after
leaving the vehicle.
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Lighting119
Activating
1. Switch off the ignition.
2. Remove the ignition key.
3. Open driver's door.
4. Pull the turn signal lever.
5. Close the driver's door.
If the driver's door is not closed the
lights switch off after two minutes.
Exit lighting is switched off
immediately if the turn signal lever is
pulled while the driver's door is open.
Activation, deactivation and duration
of this function can be changed in the Info-Display. Vehicle personalisation
3 106.
The settings can be saved for the key being used 3 22.
Battery discharge
protection
Vehicle battery state of charge
function
The function guarantees longest
vehicle battery life via a generator with controllable power output and
optimised power distribution.
To prevent discharge of the vehicle
battery when driving, the following
systems are reduced automatically in two stages and finally switched off:
■ auxiliary heater
■ heated rear window
■ heated windscreen
■ heated mirrors
■ heated seats
■ fanIn the second stage, a message
which confirms the activation of the
vehicle battery discharge protection
will be displayed in the Driver
Information Centre (DIC).
Switching off electric lights To prevent discharge of the vehicle
battery when the ignition is switched
off, some interior lights are switched
off automatically after some time.
Page 133 of 261

Driving and operating131Starting and operating
New vehicle running-in Do not brake unnecessarily hard for
the first few journeys.
During the first drive, smoke may
occur because of wax and oil
evaporating off the exhaust system.
Park the vehicle in the open for a
while after the first drive and avoid
inhaling the fumes.
During the running-in period, fuel and engine oil consumption may be
higher.
Additionally, the cleaning process of
the diesel particle filter may take
place more often.
Diesel particle filter 3 136.
Autostop may be inhibited to allow for
charging of the vehicle battery.
Ignition switch positions
Turn key:0=ignition off: Some functions
remain active until key is
removed or driver's door is
opened, provided the ignition was on previously1=accessory power mode: Steeringwheel lock released, some
electrical functions are operable,
ignition is off2=ignition on power mode: Ignition
is on, diesel engine is preheating.
Control indicators illuminate and
most electrical functions are
operable3=engine start: Release key after
starting procedure beginsSteering wheel lock
Remove key from ignition switch and
turn steering wheel until it engages.
Retained power off The following electronic systems are
operable until the driver's door is
opened or at the latest for
10 minutes after the ignition is
switched off:
■ power windows
■ power outlets
■ power sunroof
Power to the Infotainment system will continue to operate for 30 minutes or
until the key is removed from the ignition switch, regardless of whether
any door is opened.