Page 17 of 271
In brief15Climate control
Heated rear windowHeating and ventilation system, air
conditioning system
The heating is operated by pressing
b .
Electronic climate control system
The heating is operated by pressing
b .
Heated rear window 3 40.
Heated exterior mirrors
Pressing b also activates the heated
exterior mirrors.
Heated exterior mirrors 3 37.
Demisting and defrosting the
windows
Heating and ventilation system, air conditioning system
● press à, the air distribution is
directed towards the windscreen
● set temperature controller £ to
warmest level
● switch on air conditioning A/C, if
required
● set fan speed Z to highest level
● switch on heated rear window b
Page 18 of 271
16In brief●switch on heated windscreen ,
● open side air vents as required and direct them towards the doorwindows
Heating and ventilation system
3 118.
Air conditioning system 3 119.
Heated windscreen 3 41.Electronic climate control system
● press à, the LED in the button
illuminates to indicate activation
● temperature and air distribution are set automatically and the fan
runs at high speed
● switch on air conditioning by pressing A/C, if required
● switch on heated rear window b
● switch on heated windscreen ,
● to return to previous mode, press
à again
● to return to automatic mode, press AUTO
Electronic climate control system
3 122.
Page 43 of 271
Keys, doors and windows41Depending on climate control system,
b is located at a different position.
Vehicles with heating and
ventilation system or air
conditioning systemVehicles with electronic climate
control system
Heated windscreen
Operated by pressing ,. LED in
button illuminates.
Heating works with the engine
running and is switched off
automatically after a short time.
Depending on climate control
system, , is located at a different
position.
Vehicles with electronic climate
control system
Vehicles with air conditioning
system
Page 117 of 271
Lighting115Reversing 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 when the exterior lights
are on:
● 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
Page 120 of 271

118Climate controlClimate controlClimate control systems.............118
Heating and ventilation system 118
Air conditioning system ...........119
Electronic climate control system .................................... 122
Auxiliary heater ........................126
Air vents ..................................... 126
Adjustable air vents .................126
Fixed air vents ......................... 127
Glovebox cooler ......................127
Maintenance .............................. 127
Air intake ................................. 127
Air conditioning regular
operation ................................ 128
Service .................................... 128Climate control systems
Heating and ventilation system
Controls for: ● temperature £
● air distribution l, M and K
● fan speed Z
● demisting and defrosting à
● heated rear window and exterior mirrors b
● heated seats ß
Heated rear window b 3 40.
Heated exterior mirrors b 3 37.
Heated seats ß 3 50.
Temperature
Adjust the temperature by turning £ to the desired temperature.red area:warmerblue area:colder
Heating will not be fully effective until
the engine has reached normal
operating temperature.
Air distribution
l:to windscreen and front door
windowsM:to head area via adjustable air
ventsK:to foot well and windscreen
All combinations are possible.
Fan speed
Adjust the air flow by turning Z to the
desired speed.
clockwise:increaseanticlockwise:decrease
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Climate control119Demisting and defrosting
● Press à: the air distribution is
directed towards the windscreen.
● Set temperature controller £ to
warmest level.
● Set fan speed Z to highest level.
● Switch on heated rear window b.
● Open side air vents as required and direct them towards the doorwindows.
Heated rear window, windscreen and exterior mirrors b 3 40.
Heated seats ß 3 50.
Air conditioning system
Controls for:
● temperature £
● air distribution l, M and K
● fan speed Z
● demisting and defrosting à
● cooling A/C
● air recirculation 4
● heated rear window and exterior mirrors b
● heated windscreen ,
● heated seats ß
Heated rear window b3 40.
Heated exterior mirrors b3 37.
Heated windscreen , 3 41.
Heated seats ß 3 50.
Some setting changes are indicated
briefly in the Info Display. Activated
functions are indicated by the LED in
the respective button.
Temperature
Adjust the temperature by turning
£ to the desired temperature.
red area:warmerblue area:colder
Page 122 of 271

120Climate controlHeating will not be fully effective until
the engine has reached normal
operating temperature.
Air distributionl:to windscreen and front door
windowsM:to head area via adjustable air
ventsK:to foot well and windscreen
All combinations are possible.
Fan speed
Adjust the air flow by turning Z to the
desired speed.
clockwise:increaseanticlockwise:decreaseCooling A/C
Press A/C to switch on cooling. The
LED in the button illuminates to
indicate activation. Cooling is only
functional when the engine is running and fan is switched on.
Press A/C 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 3 134.
Air recirculation system
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
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Climate control121humidity 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.
● Switch on cooling A/C.
● Press 4 for air recirculation
system on.
● Press M for air distribution.
● Set temperature control £ to
coldest level.
● Set fan speed Z to highest level.
● Open all vents.
Heated rear window, windscreen and exterior mirrors b 3 40.
Heated seats ß 3 50.
Demisting and defrosting the
windows● Press à: the air distribution is
directed towards the windscreen.
● Set temperature controller £ to
warmest level.
● Switch on cooling A/C, if
required.
● Set fan speed Z to highest level.
● Switch on heated rear window b.
● Switch on heated windscreen ,.
● Open side air vents as required and direct them towards the doorwindows.
Notice
If à is pressed while the engine is
running, an Autostop will be inhibited until à is pressed again.
If à is pressed while the engine is in
an Autostop, the engine will restart
automatically.
Stop-start system 3 134.