Page 209 of 351

Climate control207Climate controlClimate control systems.............207
Heating and ventilation system 207
Air conditioning system ...........208
Electronic climate control system .................................... 209
Rear heating system ...............212
Rear air conditioning system ...214
Auxiliary heater ........................215
Air vents ..................................... 220
Adjustable air vents .................220
Fixed air vents ......................... 221
Glovebox cooler ......................221
Maintenance .............................. 222
Air intake ................................. 222
Air conditioning regular operation ................................ 222
Service .................................... 222Climate control systems
Heating and ventilation system
Controls for: ● temperature
● fan speed
● air distribution
● demisting and defrosting
Heated rear window Ü 3 42.
Heated seats ß 3 51.
Temperature
red: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
Page 210 of 351

208Climate controlJ:to windscreen, front door
windows and foot wellV:to windscreen and front door
windows
Intermediate settings are possible.
Demisting and defrosting the
windows
● Switch cooling A/C on if
available.
● Set temperature control to warmest level.
● Set fan speed to highest level.
● Set air distribution control to V.
● 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.
Notice
If V is pressed while the engine is
running, an Autostop will be inhibited
until V is pressed again.
If V is pressed while the engine is
in an Autostop, the engine will restart automatically.
Stop-start system 3 227.
Air conditioning system
Cooling (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.
Press A/C again to switch off cooling.
The air conditioning system cools and
dehumidifies (dries) the air when
outside temperature is a little above
the freezing point. Therefore
condensation may form and drip from under the vehicle.
If no cooling or drying is required,
switch the cooling system off to save
fuel.
Notice
If the climate control is set to
maximum cooling while the ambient
temperature is high, an Autostop
may be inhibited until the required
temperature in the passenger
compartment has been reached.
If the climate control is set to
maximum cooling while the engine is in an Autostop, the engine may
restart automatically.
Stop-start system 3 227.
Page 211 of 351

Climate control209Air recirculation system
Press n to activate air recirculation
mode. The LED in the button
illuminates to indicate activation.
Press n 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. The quality
of the passenger compartment air
deteriorates, which may cause the vehicle occupants to feel drowsy.
Electronic climate control
system
Controls for: ● temperature
● air distribution ( ï or î) and
menu selection
● fan speed x
AUTO:automatic modeu:air recirculationV:demisting and defrostingÜ:heated rear window,
heated exterior mirrorsA/C OFF:switch off air conditioning
Heated rear window Ü 3 42.
Heated exterior mirrors Ü 3 39.
Heated seats ß 3 51.
The preselected temperature is
automatically regulated. In automatic
mode, the fan speed and air
distribution automatically regulate the
air flow.
The system can be manually adapted by use of air distribution and air flow
controls.
The electronic climate control system
is only fully operational when the
engine is running.
For correct operation, do not cover
the sensor on the instrument panel.
Automatic mode
Page 212 of 351

210Climate controlBasic setting for maximum comfort:● Press AUTO (AUTO appears in
the display).
● Set desired temperature (the temperature appears in the
display).
● Open all air vents.
During automatic mode, the settings
for fan speed, air distribution, air
conditioning and air recirculation are
automatically regulated by the system and are not shown on the display.
Temperature preselection
Temperatures can be set to the
desired value with the two buttons
below the display.
For reasons of comfort, change
temperature only in small increments.
red:warmblue:coldHeating will not be fully effective until
the engine has reached normal
operating temperature.
If the minimum temperature of 15 ℃
is set, the electronic climate control
system runs at maximum cooling.
If the maximum temperature of 27 ℃
is set, the electronic climate control
system runs at maximum heating.
Notice
If the temperature is to be reduced
for climate comfort reasons, an
Autostop can be inhibited or the
engine will restart automatically
when cooling is switched on.
Stop-start system 3 227.
Fan speed
Fan speed can be increased or
decreased with the x buttons.
The selected fan speed is indicated
with x in the display.
If the fan is switched off, the air
conditioning is also deactivated.
To return to automatic mode: Press AUTO .
Demisting and defrosting the
windows
Press V. The LED illuminates.
Temperature and air distribution are
set automatically, air conditioning is
switched on and the fan runs at a high
speed.
Heated rear window, heated exterior
mirrors are also switched on
automatically. Press Ü to switch off
without deactivating demisting /
defrosting of the windows. The fan speed can also be decreased.
To return to automatic mode: press
V or AUTO .
Page 213 of 351

Climate control211Notice
If V is pressed while the engine is
running, an Autostop will be inhibited
until V is pressed again.
If V is pressed while the engine is
in an Autostop, the engine will restart automatically.
Stop-start system 3 227.
Air distribution
Press ï or î repeatedly.
Arrows shown in the display indicate
the distribution settings:
ï:to windscreen and front door
windows™:to windscreen, front door
windows and foot well²:to head area³:to head area and foot wellî:to foot wellTo return to automatic mode, press
AUTO .
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,
press A/C OFF to switch the cooling
system off, thus saving fuel.
A/C OFF appears in the display.
Manual air recirculation mode
Press u to switch on air recirculation.
u appears in the display.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. The quality
of the passenger compartment air
deteriorates, which may cause the vehicle occupants to feel drowsy.
To return to automatic mode, press
u or AUTO .
Page 214 of 351

212Climate controlRear heating system
If the engine is switched off, the rear
compartment can be heated by the
additional heating, through low level
vents.
By programming values using the
control panel, the user can adjust the
time, day and temperature settings.
Heating will cease to operate if the
vehicle fuel level drops too low.
During operation, power from the
vehicle battery is used. For short
journey times, check the vehicle
battery regularly and recharge if
necessary.
Notice
If the rear heating system is
activated while the engine is
running, an Autostop will be
inhibited.
To ensure efficient performance, the low level air vents in the rear
passenger compartment must not be obstructed.9 Warning
Do not operate the system when
refuelling, when dust or
combustible vapours are present
or in enclosed spaces (e.g.
garage).
9 Warning
If the warning light illuminates in
combination with the hazard
warning flashers, stop vehicle and switch off engine as soon as
possible. Evacuate the vehicle, there is a risk of fire.
Page 215 of 351

Climate control213Timer1 Display:Displays preset,
weekday or preset
day, current time or preset time,
temperature, Z and
Y2 Temperature:Selects
temperature3 l:Adjusts values up4 k:Adjusts values
down5 Y:Selects heat
settings6 P:Selects preset
settings7 Þ:Selects time and
weekday settings
Operation
Heating Y
Press Y, the predetermined heating
duration, e.g. 30 is displayed.
To temporarily adjust the heating
duration, adjust using k or l. The
value can be set from 10 to
120 minutes. Due to the power
consumption, note the heating
duration.
To switch off, press Y.
To change the default predetermined heating duration, ensure the heater is switched off, press and hold k until
the display flashes and adjust using
k or l.
Programming P
Up to three preset departure times during one day, or one preset
departure time over one week can be programmed.
● Press P once to select preset
memory number 1.
● Press P twice to select preset
memory number 2.
● Press P three times to select
preset memory number 3.
● Press P again to exit the preset
memory.
Start heating within 24 hours ● Press P to select desired preset
memory number 1, 2 or 3.
● Briefly press k or l. The preset
time flashes.
● Adjust the preset time using k or
l .
● Press P to confirm and exit the
preset memory.
Start heating up to seven days ● Press P to select desired preset
memory number 1, 2 or 3.
● Briefly press k or l. The preset
time flashes.
● Adjust the preset time using k or
l .
Page 216 of 351

214Climate control● After 5 seconds the preset dayflashes.
● Adjust the preset day using k or
l .
● The preset time and day are set once the display changes to the
current time.
Set time and weekday Þ
If the vehicle battery is disconnected or its voltage is too low, the unit will
need to be reset.
● Press Þ until the time flashes.
● Press k or l to change the
current time.
● Time is stored when the display stops flashing.
● Wait for weekday to flash.
● Press k or l to change the
weekday.
● Weekday is stored when the display stops flashing.
Heating level
The preferred heating level for
programmed departure times can be set between 10 to 30 ℃.To adjust the temperature of theheating, turn the rotary knob located
on the control panel.turn clockwise:increase
temperatureturn anticlock‐
wise:decrease
temperature
Rear air conditioning
system
The rear air conditioning system is
activated in conjunction with the front passenger compartment air
conditioning system.
Bus
Fan speed
Adjust the air flow to select the
desired speed.
turn clockwise:increase air flowturn anticlock‐
wise:decrease air flow
Notice
Rear air conditioning cannot be
switched on during an Autostop.
Stop-start system 3 227.