
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 

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. 

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 

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 . 

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 . 

Climate control221Side air vents
Direct the flow of air by tilting and
swivelling the slats.
To close the vent, swivel the slat
towards the outside of the vehicle.
9 Warning
Do not attach any objects to the
slats of the air vents. Risk of
damage and injury in the event of
an accident.
Combi
Adjustable air vents may be located in the roof frame. To open, press air
vent. Hold air vent and turn it to the
required position to direct the airflow.
Bus
Adjustable air vents may be located in the roof frame above the seats. Turn
adjuster to increase / decrease
airflow to the appropriate seat.
Fixed air vents
Additional air vents are located
beneath the windscreen and door
windows and in the foot wells.
Glovebox cooler The air conditioning system can alsokeep the contents of the glovebox
cool. 

230Driving and operatingRestart of the engine by the stop-
start system
If one of the conditions for an
Autostop is not fulfilled anymore or
the vehicle starts to move, the engine
may be restarted automatically by the
stop-start system.
An automatic engine restart may not
be possible if a door or the bonnet is
open.
If an electrical accessory, e.g. a
portable CD player, is connected to
the power outlet, a brief power drop
during restart might be noticeable.
If the Infotainment system is active,
audio sound may briefly be reduced
or interrupted during the restart.
Fault
If the LED illuminates in deactivation
button  ) without first being pressed
to deactivate the system, there is a
fault in the stop-start system and it is
deactivated. A corresponding
message also appears in the Driver Information Centre  3 104.
Seek the assistance of a workshop.Parking9 Warning
● Do not park the vehicle on an
easily ignitable surface. The
high temperature of the
exhaust system could ignite the
surface.
● Always apply parking brake without pressing release
button. Apply as firmly as
possible on a downhill slope or
uphill slope. Depress brake
pedal at the same time to
reduce operating force.
● Switch off the engine.
● If the vehicle is on a level surface or uphill slope, engage
first gear. On an uphill slope,
turn the front wheels away from
the kerb.
If the vehicle is on a downhill
slope, engage reverse gear.
Turn the front wheels towards the kerb.
● Close the windows.
● Turn the ignition key to position
0  and remove it. Turn the
steering wheel until the
steering wheel lock is felt to
engage.
Lock the vehicle  3 23  and activate the
anti-theft locking system  3 34 and
anti-theft alarm system  3 35.
Air suspension
Operates automatically when the
vehicle is driven. The air suspension
system constantly adjusts the ride
height according to the vehicle load.
Caution
To ensure safe operation of the air
suspension system, do not exceed the maximum permissible gross
vehicle weight rating. Refer to
identification plate  3 314 or the
vehicle documents. 

232Driving and operatingl:lowered positionk:normal positionj:raised positionCaution
If an obstacle is detected while
raising or lowering, the
suspension height is returned to the normal position after a delay.
This does not guarantee damage- free operation. Ensuring sufficient
clearance and freedom from
obstacles is the responsibility of the driver.
Manual settings
Manual adjustment can only be
performed when the vehicle is
stationary.
Select by pressing  h for 2 seconds,
then  R to raise, or  S to lower.
To exit, press any of the pre-
programmed buttons.
Notice
Obstacle detection is not available
during manual adjustment.
When a certain low speed is
exceeded or when the ignition is
switched off, height adjustment is deactivated automatically and the
suspension height is returned to the
normal position.
Service mode
When the vehicle is stationary, press
i  for 5 seconds to put the vehicle into
service mode. The indicator light will
illuminate.
When service mode has been
activated, the air suspension master
switch must be turned off.
To exit service mode, press  i again
for 5 seconds.
Fault
If a fault is detected,  i will flash
intermittently. If service mode has been activated and there is a fault,  h,
S  and  R will flash simultaneously.
Have the cause of the fault remedied
by a workshop.Engine exhaust9 Danger
Engine exhaust gases contain
poisonous carbon monoxide,
which is colourless and odourless and could be fatal if inhaled.
If exhaust gases enter the interior
of the vehicle, open the windows.
Have the cause of the fault
rectified by a workshop.
Avoid driving with an open load
compartment, otherwise exhaust
gases could enter the vehicle.
Diesel particle filter
The diesel particle filter system filters
soot particles out of the exhaust
gases. The system includes a self-
cleaning function that runs
automatically during driving without
any notification.
The filter is cleaned by periodically
burning off the soot particles at high
temperature. This process takes
place automatically under set driving