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Lighting135Tail lightsTail lights are illuminated together
with low/high beam and sidelights.
Automatic light control
When the automatic light control
function is switched on and the
engine is running, the system
switches between daytime running
lights and headlights automatically
depending on the external lighting
conditions and information given by
the rain sensor system.
Daytime running light 3 138.
Automatic headlight activation
During poor lighting conditions
headlights are switched on.
Additionally, headlights are switched
on if the windscreen wipers have
been activated for several wipes.
LED headlights 3 138.
Tunnel detection
When a tunnel is entered headlights
are switched on immediately.
High beam assist
The camera in the windscreen
detects the lights of oncoming or
preceding vehicles. Once activated,
high beam assist remains active and switches high beam on and off
automatically. The latest setting of the high beam assist will remain after theignition is switched on again.It switches automatically to low beam
when:
● Driving in urban areas.
● It is foggy or snowy.
● Front or rear fog lights are switched on.
If there are no restrictions detected, the system switches back to high
beam.
Vehicles without LED matrix
headlights
High beam is switched on
automatically at a speed above
25 mph . High beam is switched off at
a speed below 12 mph, but high beam
assist remains active.
Vehicles with LED matrix
headlights
This feature allows the high beam tofunction as main driving light at night.
Page 138 of 311
136Lighting
Each LED on right or left side is
triggered or faded out particularly
according to the traffic situation. This
gives the best light distribution
without dazzling other road users.
High beam is switched on
automatically at a speed above
31 mph . High beam is switched off at
a speed below 22 mph, but high beam
assist remains active.
Motorway mode
High beam assist includes a special
motorway mode. When driving faster
than 62 mph on motorways for a
certain time, the light beam becomes
smaller to avoid dazzling of oncoming traffic.
ActivationIndicator lever with f button
Activate high beam assist by pressing
f .
Indicator lever with or without MENU
button
Activate high beam assist by pushing the indicator lever twice.
The green control indicator f
illuminates continuously when the
high beam assist is activated, the blue
one 7 illuminates when high beam is
on.
Control indicator f 3 111, 7
3 111.
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Lighting137DeactivationIndicator lever with or without MENU
button
If high beam assist is active and high
beam is on, pull the lever once to
deactivate high beam assist.
If high beam assist is active and high
beam is off, push the lever twice to
deactivate high beam assist.
Pushing the indicator lever to activate manual high beam will also
deactivate high beam assist.Indicator lever with f button
If high beam assist is active and high beam is on, press f once or pull
indicator lever once to deactivate high
beam assist.
If high beam assist is active and high
beam is off, press f once to
deactivate high beam assist.
Pushing the indicator lever to activate manual high beam will also
deactivate high beam assist.High beam
Push lever to switch from low to high
beam.
Pull lever to deactivate high beam.
High beam assist 3 135.
Headlight flash To activate the headlight flash, pull
lever.
Pulling lever deactivates high beam.
LED headlights 3 138.
Headlight range adjustment
Manual headlight range
adjustment
Headlight range can be adjusted
manually if vehicle is equipped with
halogen headlights. LED headlights
are adjusted automatically.
Dynamic automatic headlight
levelling 3 138.
To adapt headlight range to the
vehicle load to prevent dazzling: turn
thumb wheel ? to required position.
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138Lighting0:front seats occupied1:all seats occupied2:all seats occupied and load
compartment laden3:driver's seat occupied and load
compartment laden
Headlights 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.
Vehicles with halogen headlight
system
The headlights do not have to be
adjusted.
Vehicles with LED headlight
Headlights can be set for driving on
the opposite side of the road in the vehicle personalisation menu via the
Info Display.
Select the relevant setting in Settings
I Vehicle .
Info Display 3 118.
Vehicle personalisation 3 122.
Every time the ignition is switched on,
f flashes for approx. 4 seconds as a
reminder.
To deactivate, use the same
procedure as described above. f will
not flash when function is deactivated.
Control indicator f 3 111.
Daytime running lights Daytime running lights increases
visibility of the vehicle during daylight.
They are switched on automatically
during daytime when engine is
running.
The system switches between
daytime running lights and headlights automatically, depending on the
lighting conditions.
Automatic light control 3 135.LED headlights
LED headlight system contains a
variety of particular LEDs in each
headlight which enables the control of different lighting programmes.
Light distribution and intensity of light
are variably triggered depending on
the lighting conditions, road type and
driving situation. The vehicle adapts
the headlights automatically to the
situation to enable optimal light
performance for the driver.
Some functions of the LED headlights
can be deactivated or activated in the vehicle personalisation menu. Select
the relevant setting in Settings I
Vehicle in the Info Display.
Vehicle personalisation 3 122.
The following lighting functions are
available with light switch in position
AUTO or 9.
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Lighting139Town light
Activated automatically at a speed upto approx. 34 mph and in situations
with exterior ambient light. The light is
wide and symmetrical. A special
beam pattern is designed to avoid
glare for other road users.
Country light
Activated automatically at a speed
above approx. 34 mph when driving
in rural areas. The illumination of the
current lane and the side of the roadis improved. Oncoming and
preceding vehicles are not dazzled.
Curve light
Particular LEDs, based on steering
angle and speed, are additionally
triggered to improve lighting in
curves. This function is activated at
speeds from 25 mph to 43 mph and
reacts to steering angle.
Corner light
When turning off, depending on the
steering angle and the turn lights, particular LEDs are triggered which
illuminate the direction of travel. It is
activated up to a speed of 25 mph.
Reverse parking function
To assist driver's orientation when
parking, both corner lights and
reversing light illuminate when
headlights are on and reverse gear is
engaged. They remain illuminated for
a short time after disengaging reverse gear or until driving faster than
4 mph in a forward gear.
Dynamic automatic headlight
levelling
To prevent oncoming traffic from being dazzled, headlight levelling is
automatically adjusted based on
inclination information measured by
front and rear axle, acceleration or
deceleration and vehicle speed.
Headlights when driving abroad
3 138.
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140LightingFault in LED headlight system
When the system detects a failure in
the LED headlight system, it selects a preset position to avoid dazzling of
oncoming traffic. A warning is
displayed in the Driver Information
Centre.
Hazard warning flashers
Operated by pressing ¨.
The illustrations show different
versions.
In the event of an accident with airbag
deployment, the hazard warning
flashers are activated automatically.
Turn lightsup:right turn lightdown:left turn light
A resistance point can be felt when
moving the lever.
Constant flashing is activated when
the lever is being moved beyond the
resistance point. It is deactivated
when the steering wheel is moved in
the opposite direction or lever is
manually moved back to its neutral
position.
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Lighting141Activate temporary flashing by
holding the lever just before the
resistance point. Turn lights will flash
until lever is being released.
To activate three flashes, tap the
lever briefly without passing the
resistance point.
With a trailer connected, turn light
flashes six times and tone frequency
changes.
Front fog lights
Operated by pressing >.
Light switch in position AUTO:
switching on front fog lights will switch headlights on automatically.
Rear fog light
Operated by pressing ø.
Light switch in position AUTO:
switching on rear fog light will switch
headlights on automatically.
Light switch in position 8: rear fog
light can only be switched on with
front fog lights.
The vehicle rear fog light is
deactivated when towing a trailer or a
plug is connected with the socket, e.
g. when a bicycle carrier is used.
Parking lights
When the vehicle is parked, the
parking lights on one side can be
activated:
1. Switch off ignition.
2. Move the indicator lever all the way up (right parking lights) or
down (left parking lights).
Confirmed by a signal and the
corresponding turn lights control
indicator.
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142LightingReversing lights
The 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 panelillumination control
Brightness of the following lights can
be adjusted in position AUTO when
the light sensor detects night
conditions, or in position 8 or 9.
● instrument panel illumination
● Info Display
● illuminated switches and operation elements
Turn thumb wheel A and hold until
the desired brightness is obtained.
Interior lights
During entry and exit of the vehicle,
the front and rear courtesy lights
automatically switch on and then off
after a delay.
Notice
In the event of an accident with
airbag deployment the courtesy
lights are turned on automatically.
Front courtesy lightw:automatic switching on
and offpress u:onpress v:off