Page 66 of 229
64Instruments and controlsAdjustable sensitivity of the rain
sensor
Wiper lever in position INT.
Turn the adjuster wheel to adjust the
sensitivity of the rain sensor.
The rain sensor detects the amount of water on the windscreen and
automatically regulates the wiping
frequency and speed.
After 20 seconds without wiping
activity, the wiper arms move slightly
down to park position.
Keep the sensor free from dust, dirt
and ice.
Windscreen washer
Pull lever. Washer fluid is sprayed
onto the windscreen and the wiper
wipes a few times.
Washer fluid 3 159
Rear window wiper and washer
Rear window wiper
Press the rocker switch to activate the
rear window wiper:
ON:continuous operationOFF:offINT:intermittent operation
Page 67 of 229
Instruments and controls65Do not use if the rear window is
frozen.
Switch off in car washes.
The rear window wiper comes on
automatically when the windscreen
wiper is switched on and reverse gear
is engaged.
Activation or deactivation of this
function can be changed in the menu Settings in the Info Display.
Vehicle personalisation 3 90.
Rear window washer
Push lever. Washer fluid is sprayed
onto the rear window and the wiper
wipes a few times.
Washer fluid 3 159
Outside temperature A drop in temperature is indicated
immediately and a rise in temperature
after a time delay. Temperatures
below 3 °C flash on the display.
Illustration shows Graphic Info
Display.
Illustration shows Colour Info Display.
Uplevel display
Page 92 of 229

90Instruments and controlsWhen the vehicle is parked and /
or the driver's door is opened
● With exterior lights on.
During an Autostop ● If the driver's door is opened.
Battery voltage Uplevel display
When the vehicle battery voltage is
running low, a warning message will
appear in the Driver Information
Centre.
Midlevel display
When the vehicle battery voltage is
running low, a warning code 174 will appear in the Driver Information
Centre.
1. Switch off immediately any electrical consumers which are
not required for a safe drive, e.g.
seat heating, heated windscreen
and heated rear window or other
main consumers.
2. Charge the vehicle 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 vehicle battery cannot be
recharged, have the cause of the fault
remedied by a workshop.Vehicle personalisation
The vehicle's behaviour can be
personalised by changing the settings
in the Info Display.
Some of the personal settings for
different drivers can be memorised
individually for each vehicle key.
Memorised settings 3 21.
Depending on vehicle equipment and country-specific regulations, some of
the functions described below might
not be available.
Some functions are only displayed or
active when the engine is running.
Personal settings
Graphic Info Display
Press CONFIG for the Settings menu.
Turn the MENU-TUNE control to
move to the desired setup menu, and then press MENU-TUNE .
Page 101 of 229

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.
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106LightingThe following lights will additionally
switch on when the driver's door is
opened:
● illumination of 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 lighting Headlights, tail lights and number
plate lights illuminate the surrounding area for an adjustable time after
leaving the vehicle.Activating
1. Switch off the ignition.
2. Remove the ignition key.
3. Open driver's door.
4. Pull the stalk.
5. Close the driver's door.
If the driver's door is not closed the
lights switch off after 2 minutes.
Exit lighting is switched off
immediately if the stalk 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 90.
The settings can be saved for the key
being used 3 21.
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:
● heated rear window
● heated windscreen
● heated mirrors
● heated seats
● fan
In the second stage, a message
which confirms the activation of the
vehicle battery discharge protection
will be displayed in the Driver
Information Centre.
Page 110 of 229

108Climate controlClimate controlClimate control systems.............108
Heating and ventilation system 108
Air conditioning system ...........109
Electronic climate control system .................................... 111
Air vents ..................................... 115
Adjustable air vents .................115
Fixed air vents ......................... 116
Maintenance .............................. 116
Air intake ................................. 116
Air conditioning regular operation ................................ 116
Service .................................... 116Climate control systems
Heating and ventilation system
Controls for: ● temperature
● fan speed
● air distribution
Heated rear window Ü 3 30.
Heated windscreen 3 31.
Heated seats ß 3 36.
Heated steering wheel * 3 62.
Temperaturered:warmblue:cold
Heating will not be fully effective until
the engine has reached normal
operating temperature.
Fan speed
Adjust the air flow by switching the fan
to the desired speed.
Air distribution
M:to head areaL:to head area and foot wellK:to foot well and windscreenJ:to windscreen, front door
windows and foot welll:to windscreen and front door
windows
Intermediate settings are possible.
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Climate control109Demisting and defrosting the
windows
● Set temperature control to warmest level.
● Set fan speed to highest speed.
● Set air distribution control to l.
● Switch on heated rear window Ü.
● Open side air vents as required and direct them towards door
windows.
● For simultaneous warming of the
foot well, set air distribution
control to J.
Air conditioning system
Controls for:
● temperature
● fan speed
● air distribution
n:cooling4:air recirculationÜ:heated rear window 3 30
Heated windscreen 3 31.
Heated seats ß 3 36.
Heated steering wheel * 3 62.
Temperaturered:warmblue:cold
Heating will not be fully effective until
the engine has reached normal
operating temperature.
Fan speed
Adjust the air flow by switching the fan
to the desired speed.
Air distribution
M:to head areaL:to head area and foot wellK:to foot well and windscreenJ:to windscreen, front door
windows and foot welll:to windscreen and front door
windows (air conditioning is
activated in the background to
help preventing windows from
fogging)
Intermediate settings are possible.
Page 112 of 229

110Climate controlCooling n
Press n
to switch on cooling. The
LED in the button illuminates to
indicate activation. Cooling is only
functional when the engine is running and climate control fan is switched on.
Press n again to switch off cooling.
The air conditioning system cools and
dehumidifies (dries) as soon as the
outside temperature is slightly above
the freezing point. Therefore
condensation may form and drip from under the vehicle.
If no cooling or drying is required,
switch off the cooling system for fuel
saving reasons.
Activated cooling may inhibit
Autostops.
Stop-start system 3 120.
Air recirculation system 4
Press 4 to activate air recirculation
mode. The LED in the button
illuminates to indicate activation.
Press 4 again to deactivate air
recirculation mode.
9 Warning
The exchange of fresh air is
reduced in air recirculation mode.
In operation without cooling the air
humidity increases, so the
windows may mist up from inside.
The quality of the passenger
compartment air deteriorates,
which may cause the vehicle
occupants to feel drowsy.
In warm and very humid ambient air conditions, the windscreen may mist
up from outside, when cold air is
directed towards it. If windscreen
mists up from outside, activate
windscreen wiper and deactivate l.
Maximum cooling
Briefly open the windows so that hot
air can disperse quickly.