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88Instruments and controlsVehicle messages on Midlevel
display
The vehicle messages are displayed
as code numbers.
No.Vehicle message1Change engine oil3Engine coolant level low4Air conditioning off5Steering wheel is locked7Turn steering wheel, switch
ignition off and then onNo.Vehicle message9Turn steering wheel, start
engine again12Vehicle overloaded13Compressor overheated15Centre high-mounted brake
light failure16Brake light failure17Headlight levelling malfunction18Left low beam failure19Rear fog light failure20Right low beam failure21Left sidelight failure22Right sidelight failure23Reversing light failure24Number plate light failure25Left front turn light failure26Left rear turn light failure27Right front turn light failureNo.Vehicle message28Right rear turn light failure29Check trailer brake light30Check trailer reversing light31Check left trailer turn light32Check right trailer turn light33Check trailer rear fog light34Check trailer rear light35Replace battery in radio remote
control49Lane departure warning
unavailable53Tighten fuel filler cap55Exhaust filter is full 3 12356Tyre pressure imbalance on
front axle57Tyre pressure imbalance on
rear axle58Tyres without pressure sensors
detected
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Lighting99Light switch with automatic light
control
Turn light switch:
AUTO:automatic light control:
headlights are switched on
and off automatically
depending on external
lighting conditionsm:activation or deactivation of
the automatic light control.
Switch turns back to AUTO8:sidelights9:headlightsA status message in the Driver
Information Centre indicates the
current status of the automatic light
control.
When switching on the ignition,
automatic light control is active.
When headlights are on, 8
illuminates.
Control indicator 8 3 80.
Tail lights Tail lights are illuminated together
with headlights and sidelights.
Automatic light controlWhen the automatic light control
function is switched on and the
engine is running, the system
switches between daytime running
light and headlights automatically
depending on the lighting conditions
and information given by the rain
sensor system.
Daytime running light 3 101.
Automatic headlight activation During poor lighting conditions the
headlights are switched on.
Furthermore the headlights are
switched on if the windscreen wipers
have been activated for several
wipes.
Tunnel detection When a tunnel is entered, the
headlights are switched on
immediately.
Page 103 of 229

Lighting101set to right-hand traffic mode.
Therefore, insert the key in the guide 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 automatically
between daytime running light and
headlights, depending on the lighting
conditions and information given by
the rain sensor system.
Automatic light control 3 99.
Xenon lighting system Xenon lighting system includes:● xenon headlights for low and high
beam
● 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 98.
High beam 3 100.
Headlight flash 3 100.
Headlight range adjustment 3 100.
Headlights when driving abroad
3 100.
Automatic light control 3 99.
Corner lightingOn tight bends or when turning off,
depending on the steering angle or
the indicator light signal, an additional left or right reflector is switched on
which illuminates the road in the
direction of travel. It is activated up to
a speed of 25 mph.
Reversing 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.
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104LightingInterior lightingInstrument panelillumination control
Brightness of the following lights can
be adjusted when the exterior lights
are on:
● instrument panel illumination
● dome 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
Operate rocker switch:
centre
position
w:automatic switching on
when opening a door,
turns off after a delaypress I:permanently onpress 0:permanently offFront courtesy light with reading
lights
When opening a door, the courtesylight 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.
Page 140 of 229

138Driving and operatingGeneral information9Warning
Forward collision alert is just a
warning system and does not
apply the brakes. When
approaching a vehicle ahead too
rapidly, it may not provide you
enough time to avoid a collision.
The driver accepts full
responsibility for the appropriate
following distance based on traffic, weather and visibility conditions.
The complete attention of the
driver is always required while
driving. The driver must always be
ready to take action and apply the
brakes.
System limitations
The system is designed to warn of vehicles only, but may react also to
other objects.
In the following cases, forward
collision alert may not detect a vehicle ahead or sensor performance is
limited:
● on winding roads
● when weather limits visibility, e.g.
fog, rain, or snow
● when the sensor is blocked by snow, ice, slush, mud, dirt,
windscreen damage or affected
by foreign items, e.g. stickers
Following distance indication
The following distance indication
displays the distance to a preceding
moving vehicle. The front camera in
the windscreen is used to detect the
distance of a vehicle directly ahead in
the vehicle's path. It is active at
speeds above 25 mph.
When a preceding vehicle is detected
ahead, the distance is indicated in
seconds, displayed on a page in the
Driver Information Centre 3 81 . Press
MENU on the stalk to select ? and
turn the adjuster wheel to choose following distance indication page.
The minimum indicated distance is 0.5 seconds.
If there is no vehicle ahead or the
vehicle ahead is out of range, two
dashes will be displayed: -.- sec.
Page 141 of 229

Driving and operating139Parking assist
Rear parking assist9 Warning
It is the driver who bears full
responsibility for the parking
manoeuvre.
Always check the surrounding
area while reversing and using the rear parking assist system.
The rear parking assist makes
parking easier by measuring the
distance between the vehicle and
rear obstacles. It informs and warns
the driver via acoustic signals and
display indication.
The system has four ultrasonic
parking sensors in the rear bumper.
Activation
When reverse gear is engaged, the
system is ready to operate
automatically.
An illuminated LED in the parking
assist button r indicates that the
system is ready to operate.
Indication
The system warns the driver with
acoustic signals against potentially
hazardous obstacles behind the
vehicle in a distance range up to
1.5 m. The interval between the
sounds becomes shorter as the
vehicle gets closer to that obstacle.
When the distance is less than
approx. 30 cm, the sound is
continuous.
Additionally, the distance to rear obstacles is displayed by changing
distance lines in the Driver
Information Centre with Uplevel
display 3 81 or, depending on the
version, on the Colour Info Display
3 86.
The distance indication can be inhibited by vehicle messages with a higher priority. After approving the
message by pressing SET/CLR on
the stalk, distance indication appears
again.
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140Driving and operatingDeactivation
The system automatically switches
off when reverse gear is disengaged.
Manual deactivation is also possible
by pressing the parking assist button
r .
In both cases, the LED in the button
extinguishes.
Fault
In the event of a fault or if the system does not work temporarily, e.g.
because of high external noise level
or other interference factors, the LED
in the button flashes for 3 seconds
then extinguishes. Control indicator
r illuminates in the instrument
cluster 3 78 or a message is indicated
in the Driver Information Centre.
Front-rear parking assist9 Warning
The driver bears full responsibility
for the parking manoeuvre.
Always check the surrounding
area when driving backwards or
forwards while using parking
assist system.
The front-rear parking assist
measures the distance between the vehicle and obstacles in front and
behind the vehicle. It informs and
warns the driver via acoustic signals
and display indication.
It uses two different acoustic warning
signals for the front and rear
monitoring areas, each with a
different tone frequency.
The system has four ultrasonic
parking sensors each in the rear and front bumper.
Activation
When reverse gear is engaged, the
front and rear parking assist is ready
to operate.
The system is also activated
automatically at a speed up to
7 mph.
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142Driving and operatingThe distance to obstacles is shown onthe Colour Info Display by coloured
zones in front of or behind the vehicle
3 86.
Deactivation
The rear parking assist automatically
switches off when reverse gear is
disengaged.
The front parking assist is deactivated
automatically at a speed above
7 mph.
Manual deactivation is also possible
by pressing the parking assist button
r .
When the system is deactivated, the
LED in the button extinguishes and, if
manually deactivated, a message
pops-up in the Driver Information
Centre.
After a manual deactivation, the front- rear parking assist is activated again
if r is pressed or if reverse gear is
engaged.
The complete system can be
manually deactivated in the vehicle personalisation menu in the
Info Display. It remains deactivated
during the ignition cycle or until
activation in personalisation menu
again.
Vehicle personalisation 3 90.
Fault
In the event of a fault or if the system does not work temporarily, e.g.
because of high external noise level
or other interference factors, a
message pops-up in the Driver
Information Centre.
Vehicle messages 3 87.Basic notes on parking assist
systems9 Warning
Under certain circumstances,
various reflective surfaces on
objects or clothing as well as
external noise sources may cause the system to fail to detect
obstacles.
Special attention must be paid to
low obstacles which can damage
the lower part of the bumper.
Caution
Performance of the system can be reduced when sensors are
covered, e.g. by ice or snow.
Performance of the parking assist
system can be reduced due to
heavy loading.
Special conditions apply if there
are taller vehicles in the vicinity
(e.g. off-road vehicles, mini vans,
vans). Object identification and