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Instruments and controls91
Selecting menus and functionsThe menus and functions can be
selected via the buttons on the turn signal lever.
Press MENU to switch between the
menus or to return from a submenu to the next higher menu level.
Turn the adjuster wheel to highlight a
menu option or to set a numeric value.
Press the SET/CLR button to select a
function or to confirm a message.
Vehicle Information Menu Press MENU to select the Vehicle
Information Menu , or on Uplevel-
Combi-Display select X.
Turn the adjuster wheel to select a
submenu. Press the SET/CLR button
to confirm.
Follow the instructions given in the submenus.
Possible submenus can be,
depending on the version:
■ Unit : displayed units can be
changed
■ Tire Pressure System : checks tyre
pressure of all wheels during
driving 3 182
■ Tire Load : select tyre pressure
category according to the actually
inflated tyre pressure 3 182
■ Remaining Oil Life : indicates when
to change the engine oil and filter
3 81
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Instruments and controls95
Press (the outer ring)■ to select or activate the marked option
■ to confirm a set value
■ to switch a system function on/off
BACK button
Press button to: ■ exit a menu without changing settings
■ return from a submenu to a higher menu level
■ delete the last character in a character sequence
Press and hold the button for a few
seconds to delete the entire entry.
Vehicle personalisation 3 100.Vehicle messages
Messages are indicated mainly in the
Driver Information Centre (DIC), in
some cases together with a warning chime.
Press the SET/CLR button, MENU or
turn the adjuster wheel to confirm a
message.
Vehicle messages on the
Midlevel-Display
The vehicle messages are displayed
as code numbers.
No.Vehicle message10Brakes overheated16Brake light failure25Left front turn signal failure26Left rear turn signal failure27Right front turn signal failure
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96Instruments and controls
No.Vehicle message28Right rear turn signal failure53Tighten gas cap54Water in diesel fuel filterS68Service power steeringS73Service all-wheel drive systemS75Service air conditioningS79Top up engine oilS81Service transmissionS82Change engine oil soonS84Engine power is reducedS89Service vehicle soon128Bonnet open134Park assist fault, clean
bumperS136Service parking assist174Low batteryNotice
"S" means "Service vehicle soon".
Seek the assistance of a workshop
immediately.
Vehicle messages on the
Uplevel-Display and Uplevel- Combi-Display
The vehicle messages are displayed
as text. Follow the instructions given
in the messages.
The system displays messages
regarding the following topics:
■ service messages
■ anti-theft alarm system
■ brakes
■ drive systems
■ ride control systems
■ driver assistance systems
■ cruise control
■ speed limiter
■ parking assist systems
■ lighting, bulb replacement
■ adaptive forward lighting
■ doors, windows
■ traffic sign assistant
■ lane departure warning
■ load compartment, boot lid
■ radio remote control
■ seat belts
■ airbag systems
■ engine and transmission
■ tyre pressure
■ diesel particle filter
■ vehicle battery status
Page 99 of 229

Instruments and controls97Warning chimesWhen starting the engine or
whilst driving ■ If the door or bonnet is open.
■ If seat belt is not fastened.
■ If a certain speed is exceeded with parking brake applied.
■ If a warning message or a warning code appears in the Driver
Information Centre.
■ If the parking assist detects an object.
When the vehicle is parked and/ or the driver's door is opened ■ When the key is in the ignition switch.
■ With exterior lights on.
Battery voltage
When the battery voltage is running
low, a warning message or warning
code 174 will appear in the Driver
Information Centre.1. Switch off immediately any electrical consumers which are
not required for a safe ride, e.g.
seat heating, heated rear window
or other main consumers.
2. Charge the battery by driving continuously for a while or by
using a charging device.
The warning message or warning
code will disappear after the engine
has been started twice consecutively
without a voltage drop.
If the battery cannot be recharged,
have the cause of the fault remedied
by a workshop.Trip computer
The menus and functions can be
selected via the buttons on the turn signal lever 3 90.
Press MENU to select the Trip/Fuel
Information Menu , or select W on
the Uplevel-Combi-Display.
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106Lighting
0=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 adjusting screws are located
above the headlight.
Turn the adjusting screws with the
screwdriver clockwise by half a turn.
For deactivation, turn the adjusting
screws anticlockwise by half a turn.
Caution
Have the adjustment of the
headlights checked after
deactivation.
We recommend consulting a
workshop.
Vehicles with adaptive forward
lighting system
1. Key in ignition switch.
2. Pull turn signal lever and hold (headlight flash).
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Lighting107
3. Switch on ignition.
4. After approx. 3 seconds, an acoustic signal sounds.
The headlights are aimed
automatically.
Every time the ignition is switched on,
control indicator f flashes as a
reminder for approx. 4 seconds.
For deactivation, operate the same
procedure as described above.
Control indicator f will not flash when
function is deactivated.
Control indicator f 3 89.
Daytime running lights Daytime running lights increase
visibility of the vehicle during daylight.
They are switched on automatically
when ignition is on.Adaptive forward lighting
The Adaptive forward lighting
functions are only available with Bi-
Xenon headlights. Light range, light
distribution and intensity of light are
variably triggered depending on the
light conditions, weather and road
type.
Playstreet lightingActivated automatically at low speed
up to approx. 20 mph. The light beam
is turned at an angle of -5°/3° to the
roadside.
Town lighting Activated automatically at a speed up
to approx. 30 mph and when street
lights are detected by the light sensor.
The light range is reduced by an
extended light distribution.
Country lighting
Activated automatically at a speed
range between approx. 30 and
72 mph. The beam of light and the
brightness is different between the
left and the right side.Motorway lighting
Activated automatically at a speed
above approx. 72 mph and minimal
steering movements. It switches on
after a delay or directly when the vehicle is powerfully accelerated. The
light beam is longer and brighter.
Adverse weather lighting
Activated automatically up to a speed
of approx. 43 mph, when the rain
sensor recognises condensation or the wiper operates continuously. The
range, distribution and light intensity
is regulated variably depending on visibility.
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108Lighting
Dynamic curve lighting
The light beam pivots based on
steering wheel angle and speed,
improving lighting in curves.
Control indicator f 3 89.
Corner lighting On tight bends or when turning off,
depending on the steering angle or
the turn signal light, an additional left
or right reflector is switched on which
illuminates the road at an right angle
to the direction of travel. It is activated up to a speed of 25 mph.
Control indicator f 3 89.
Reversing function
If the headlights are on and reverse
gear is engaged, both corner lights
are switched on. They remain
illuminated for 20 seconds after
disengaging reverse gear or until
driving faster than 10 mph in a
forward gear.
High beam assist
This feature allows high beam as
main driving light by night and when
vehicle speed is faster than 25 mph.
It switches to low beam when: ■ The camera in the windscreen detects the lights of oncoming or
preceding vehicles.
■ The vehicle speed is slower than 12 mph.
■ It is foggy or snowy.
■ Driving in urban areas.Activation
The 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 88.
Deactivation
Push indicator lever once. It is also
deactivated when front or rear fog
lights are switched on.
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Lighting109
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.
High beam assist is always active
after the ignition is switched on.
Dynamic automatic headlight
levelling
To prevent oncoming traffic from dazzle, headlight levelling is
automatically adjusted based on
inclination information measured by
front and rear axle, acceleration or
deceleration and vehicle speed.
Fault in Adaptive forward
lighting system When the system detects a failure in
the Adaptive forward lighting system,
the system moves to a preset position to avoid dazzling of oncoming traffic.
Have the cause of the failure
remedied by a workshop as soon as
possible.Hazard warning flashers
Operated with the ¨ button.
Turn and lane-change
signalslever up=right turn signallever down=left turn signal
If the lever is moved past the
resistance point, the turn signal is
switched on constantly. When the
steering wheel moves back, the turn
signal is automatically deactivated.
For three flashes, e.g. when changing
lanes, press the lever until resistance
is felt and then release.
Move the lever to the resistance point
and hold for longer indication.