Page 126 of 263
124Climate controlDemisting 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.
Air conditioning system
Controls for:
● temperature £
● air distribution l, M and K
● fan speed Z
● demisting and defrosting à
● air conditioning A/C
● air recirculation 4
● heated rear window and exterior mirrors b
● heated windscreen ,
● heated seats ß
Heated rear window b3 41.
Heated exterior mirrors b3 39.
Heated windscreen , 3 42.
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 128 of 263

126Climate controlwindows 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.
Demisting and defrosting the
windows
● 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.
● 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 3 139.
Electronic climate control system
The dual zone climate control allows
different temperatures for driver side
and front passenger side.
In automatic mode, temperature, fan
speed and air distribution are
regulated automatically.
Page 129 of 263

Climate control127
Controls for:● temperature on driver side £
● MENU enters the Climate setting
menu in the Info-Display
● fan speed Z
● automatic mode AUTO
● temperature on front passenger side £
● cooling A/C
● manual air recirculation 4
● demisting and defrosting à
● heated rear window and exterior mirrors b
● heated windscreen ,
●
heated seats ß
● ventilated seats A
Heated rear window Ü 3 41.
Heated exterior mirrors Ü 3 39.
Heated seats ß 3 50.
Ventilated seats A 3 51.
Activated functions are indicated by the LED in the respective control.
The electronic climate control system
is only fully operational when the
engine is running.
Climate settings menu (MENU
button)Settings for
● air distribution l, M , K
● fan speed Z
● temperature for driver and passenger side 19°/21°
● dual zone temperature synchronisation MONO
● air conditioning ON/OFF
● automatic mode AUTO
can be triggered manually in the
Climate setting menu. Press MENU to
enter the menu and follow the touch
buttons.
Climate setting menu can also be
displayed
● by selecting Climate on the 7''
Colour-Info-Display or
● by pressing Í and then selecting
Climate from the menu on the 8''
Colour-Info-Display.
Page 131 of 263

Climate control129Touch in the Colour-Info-Display:l:to windscreen and front door
windowsM:to head area and rear seats via
adjustable air ventsK:to front and rear foot well and
windscreen
To return to automatic air distribution,
press AUTO .
Temperature preselection £
Set the preselected temperatures
separately for the driver and the front
passenger to the desired value using
the left and right rotary knobs. The rotary knob on the passenger side
changes the temperature of the
passenger side. The rotary knob on
the driver's side changes the
temperature of the driver's side or of both sides, depending on activation of
synchronisation MONO in the climate
settings menu. Press MENU to enter
the menu.
Recommended temperature is 22 °C .
Temperature is indicated in displays beside the rotary knobs and in the
climate settings menu.
If the minimum temperature Lo is set,
the climate control system runs at
maximum cooling, if cooling A/C is
switched on.
If the maximum temperature Hi is set,
the climate control system runs at
maximum heating.
Notice
If A/C is switched on, reducing the
set cabin temperature can cause the
engine to restart from an Autostop or inhibit an Autostop.
Stop-start system 3 139.Dual zone temperature
synchronisation MONO or SYNC
Press MENU to enter the menu.
Touch MONO or SYNC to link
passenger side temperature setting
to the driver side.
When passenger side control dial will be adjusted, synchronisation is
deactivated.
Air conditioning 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 climate control fan is switched on.
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130Climate controlPress A/C again to switch off cooling.
The air conditioning system cools and
dehumidifies (dries) when outside
temperature is above a specific level. 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.
Manual air recirculation 4
Press 4 to activate the air
recirculation mode. The LED in the
button illuminates to indicate
activation.
Press 4 again to deactivate
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 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.
Demisting and defrosting the
windows à
● 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.
Page 142 of 263

140Driving and operating● The stop-start system is notmanually deactivated.
● The driver's door is closed or the driver's seat belt is fastened.
● The vehicle battery is sufficiently charged and in good condition.
● The engine is warmed up.
● The engine coolant temperature is not too high.
● The engine exhaust temperature is not too high, e.g. after driving
with high engine load.
● The ambient temperature is above -5 °C.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
● The self-cleaning function of the diesel particle filter is not active.
● The vehicle was driven at least at
walking speed since the last
Autostop.
Otherwise an Autostop will be
inhibited.Certain settings of the climate control
system may inhibit an Autostop. See
Climate control chapter for more
details 3 124.
Immediately after higher speed
driving an Autostop may be inhibited.
New vehicle running-in 3 134.
Vehicle battery discharge protection To ensure reliable engine restarts,
several vehicle battery discharge
protection features are implemented
as part of the stop-start system.
Power saving measures
During an Autostop, several electrical
features such as auxiliary electric
heater or rear window heating are
disabled or switched to a power
saving mode. The fan speed of the
climate control system is reduced to
save power.
Restart of the engine by the driver
Vehicles with manual transmission
Depress the clutch pedal without
depressing the brake pedal to restart the engine.Vehicles with automatic transmission
The engine is restarted if
● you release the brake pedal while
the selector lever is in position D
or M
● or the brake pedal is released or the selector lever is in position N
when you move the selector lever
to position D or M.
● or you move the selector lever to
position R.
Restart of the engine by the stop- start system
The selector lever must be in neutral to enable an automatic restart.
If one of the following conditions occurs during an Autostop, the
engine will be restarted automatically by the stop-start system:
● The stop-start system is manually deactivated.
● The driver's seat belt is unfastened and the driver's door
is opened.
● The engine temperature is too low.