Page 115 of 249
Lighting113
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 with the > button.
Light switch in position AUTO:
switching on front fog lights will switch the low beam on automatically.
Rear fog lights
Operated by pushing the r button.
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 116 of 249
114LightingReversing 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 117 of 249

Lighting115
Operate rocker switch:centre
position w=automatic switching on
when opening a door.
Turns off with delaypress I=permanent onpress 0=permanent 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
before, 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 with
delaypress I=permanent onpress 0=permanent 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
3 114.
Ambient light comes on automatically when switching off ignition and
extinguishes after opening a door.
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116LightingReading lights
Operated with 2 buttons for 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 3 129.
Activation or deactivation of this
function can be changed in the
Info-Display.
Vehicle personalisation 3 103.
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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164Driving and operating
Deactivation
The camera is deactivated when a
certain forward speed is exceeded or if reverse gear is not engaged for
approx. 10 seconds.
Activation or deactivation of the visual
guiding lines and the alerting symbols can be changed in the Settings menu in the Info-Display. Vehicle
personalisation 3 103.
Fault
Fault messages are displayed with a 9 on the top line of the Info-Display.
The rear view camera may not
operate properly when:
■ the surrounding is dark
■ the sun or the beam of headlights is
shining directly into the camera
lens
■ ice, snow, mud, or anything else covers the camera lens. Clean the
lens, rinse it with water, and wipe it
with a soft cloth
■ the vehicle had a rear end accident
■ there are extreme temperature changesTraffic sign assistant
Functionality The traffic sign assistant system
detects designated traffic signs via a
front camera and displays them in the
Driver Information Centre.
Traffic signs, which will be detected,
are:
Limit and no passing signs ■ speed limit
■ no passing
■ end of speed limit
■ end of no passingRoad signs
Beginning and end of:
■ motorways
■ A-roads
■ play streetsAdd on signs ■ additional hints to traffic signs
■ restriction of trailer towing
■ tractor constraints
■ wet warning
■ ice warning
■ direction arrows
Speed limit signs and no passing
signs are displayed in the Driver
Information Centre until the next
speed limit sign or end of speed limit
is detected or up to a defined sign
timeout.
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178Vehicle care9Danger
The ignition system and Xenon
headlights use extremely high
voltage. Do not touch.
Bonnet
Opening
Pull the release lever and return it to
its original position.
Push the safety catch upwards and open the bonnet.
Secure the bonnet support.
If the bonnet is opened during an
Autostop, the engine will be restarted automatically for safety reasons.
Closing Before closing the bonnet, press the
support into the holder.
Lower the bonnet and let it fall into the
latch from a low height (20-25 cm).
Check that the bonnet is engaged.Caution
Do not press the bonnet into the
latch to avoid dents.
Engine oil
Check the engine oil level manually on a regular basis to prevent damage
to the engine. Ensure that the correct
specification of oil is used.
Recommended fluids and lubricants
3 223.
Check with the vehicle on a level
surface. The engine must be at
operating temperature and switched
off for at least five minutes.
Page 186 of 249

184Vehicle careDiesel fuel system
bleeding
If the tank has been run dry, the diesel fuel system must be bled. Switch on
the ignition three times for
15 seconds at a time. Then crank the
engine for a maximum of
40 seconds. Repeat this process after
no less than five seconds. If the
engine fails to start, seek the
assistance of a workshop.
Wiper blade replacementLift the wiper arm until it stays in the
raised position. Press the catches on
both sides, tilt wiper blade at a 90° to the wiper arm and remove upwards.
Insert in reverse order.
Lower wiper arm carefully.
Wiper blade on the rear window
Lift wiper arm. Disengage wiper blade as shown in illustration and remove.
Attach the wiper blade slightly angled
to the wiper arm and push until it
engages.
Lower wiper arm carefully.
Bulb replacement
Switch off the ignition and switch off
the relevant switch or close the doors.
Only hold a new bulb at the base! Do not touch the bulb glass with bare
hands.
Use only the same bulb type for
replacement.
Replace headlight bulbs from within
the engine compartment.
Bulb check After a bulb replacement switch on
the ignition, operate and check the
lights.
Halogen headlights
Halogen headlights with separate
bulbs for sidelight, low beam and high beam.
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Vehicle care187
2. Press both clips together andwithdraw the bulb socket from theheadlamp housing.
3. Remove the bulb from the socket by pulling.
4. Replace and insert new bulb into socket.
5. Insert the bulb socket into the headlamp housing and turn
clockwise.
Sidelight/daytime running light
with LEDs Sidelights and daytime running lights
consist of LEDs which cannot be
changed. Consult a workshop in case
of a defective LED.
Xenon headlights9 Danger
Xenon headlights work under
extremely high electrical voltage.
Do not touch. Have bulbs replaced by a workshop.
Sidelight/daytime running lights are
designed as LEDs and cannot be
changed.
Bulbs for corner lighting can be
changed.
Front turn signal lights 3 188.
Corner lighting
1. Rotate the cap (3) anticlockwise
and remove it.