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92Instruments 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 23.
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 .
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Instruments and controls93
Select Settings and then Vehicle
settings .
Vehicle settings
● Climate and air quality
Auto fan speed : Modifies the
level of the cabin airflow of the
climate control in automatic
mode.
Auto rear demist : Activates
automatically the heated rear
window.
● Comfort settings
Chime volume : Changes the
volume of warning chimes.
Personalization by driver :
Activates or deactivates the
personalisation function.
Rear auto wipe in reverse :
Activates or deactivates
automatic switching on of the
rear window wiper when reverse gear is engaged.
● Park assist / Collision detection
Park assist : Activates or
deactivates the parking assist.
● Exterior ambient lighting
Exterior lighting by unlocking :
Activates or deactivates the entry
lighting.
Duration upon exit of vehicle :
Activates or deactivates and
changes the duration of exit
lighting.● Power door locks
Auto door lock : Activates or
deactivates the automatic door
locking function after switching on ignition.
Stop door lock if door open :
Activates or deactivates the door locking function while a door isopen.
Delayed door lock : Activates or
deactivates the delayed door
locking function. This menu
option is displayed with Stop door
lock if door open deactivated.
Central locking system 3 23.
● Remote locking, unlocking,
starting
Remote unlock feedback :
Activates or deactivates the
hazard warning flasher feedback
whilst unlocking.
Passive door unlock : Changes
the configuration to unlock only
the driver's door or the whole
vehicle whilst unlocking.
Auto relock doors : Activates or
deactivates the automatic relock
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94Instruments and controlsfunction after unlocking without
opening the vehicle.
● Restore factory settings :
Resets all settings to the default settings.
Personal settings Colour Info Display
Press ; and then select Settings.
In the corresponding submenus the
following settings can be changed:
Vehicle
● Climate & Air Quality
Auto Fan Max Speed : Modifies
the level of the cabin airflow of the climate control in automatic
mode.
Auto Rear Defog : Automatically
activates heated rear window.
● Collision / Detection Systems
Park Assist : Activates or
deactivates the parking assist.
● Comfort and Convenience
Chime Volume : Changes the
volume of warning chimes.
Personalization By Driver :
Activates or deactivates the
personalisation function.
Auto Wipe in Reverse Gear :
Activates or deactivates
automatic switching on of the
rear window wiper when reverse gear is engaged.
● Lighting
Vehicle Locator Lights : Activates
or deactivates the entry lighting.Exit Lighting : Activates or
deactivates and changes the duration of exit lighting.
● Power Door Locks
Unlocked Door Anti Lock Out :
Activates or deactivates the door
locking function while a door is open.
Auto Door Lock : Activates or
deactivates the automatic door
locking function after switching on ignition.
Delayed Door Lock : Activates or
deactivates the delayed door
locking function. This feature
delays the actual locking of the
doors until all doors are closed.
● Remote Lock, Unlock, Start
Remote Unlock Light Feedback :
Activates or deactivates the
hazard warning flasher feedback
whilst unlocking.
Remote Door Unlock : Changes
the configuration to unlock only
the driver's door or the whole
vehicle whilst unlocking.
Relock Remotely Unlocked
Doors : Activates or deactivates
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108LightingThe 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 92.
The settings can be saved for the key
being used 3 23.
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 112 of 231

110Climate controlClimate controlClimate control systems.............110
Heating and ventilation system 110
Air conditioning system ...........111
Electronic climate control system .................................... 113
Air vents ..................................... 117
Adjustable air vents .................117
Fixed air vents ......................... 118
Maintenance .............................. 118
Air intake ................................. 118
Air conditioning regular operation ................................ 118
Service .................................... 118Climate control systems
Heating and ventilation system
Controls for: ● temperature
● fan speed
● air distribution
Heated rear window Ü 3 32.
Heated windscreen 3 33.
Heated seats ß 3 38.
Heated steering wheel * 3 64.
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.
Page 113 of 231

Climate control111Demisting 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 32
Heated windscreen 3 33.
Heated seats ß 3 38.
Heated steering wheel * 3 64.
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.
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112Climate 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 3 122.
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.
Page 115 of 231
Climate control113
●Switch on cooling n.
● Air recirculation system 4 on.
● Set temperature control to coldest level.
● Set fan speed to highest level.
● Set air distribution control to M.
● Open all vents.
Demisting and defrosting the
windows l
● Set temperature control to
warmest level.
● Set fan speed to highest level.
● Set air distribution control to l.
● Switch on heated rear window Ü.
● Open side air vents as required and direct them towards the doorwindows.
Note
If air distribution mode l is selected
while engine is running, an Autostop
will be inhibited until another air
distribution is selected.
If air distribution mode l is selected
while the engine is in an Autostop,
the engine will restart automatically.
Stop-start system 3 122.
Electronic climate control system
Controls for: ● fan speed
● temperature
● air distribution
n:coolingAUTO:automatic mode4:manual air recirculation