Page 100 of 189

98Climate control
■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.
Heated rear window 3 38.
Air conditioning system
Additional to the heating and
ventilation system, the air
conditioning system has:
AC=cooling4=air recirculationCooling (AC)
Operated with the AC button and
functional only when the engine and
fan are running. LED illuminates in
the button when activated.
The air conditioning system cools and
dehumidifies (dries) the air 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 the cooling system off to save
fuel.
Notice
Air conditioning performance is
reduced when ECO mode has been
activated 3 108.
Air recirculation system 4
Operated with the 4 button. LED
illuminates in the button when
activated.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 might mist up from outside when cold air is
directed towards it. If windscreen
mists up from outside, activate
windscreen wiper and avoid the use
of air distribution settings J and V.
Maximum cooling
Briefly open the windows so that hot
air can disperse quickly.
■ Cooling AC on.
■ Air recirculation system 4 on.
■ Set air distribution control to M.
Page 102 of 189

100Climate control
If the minimum temperature is set, the
climate control system runs at
maximum cooling.
If the maximum temperature is set, the climate control system runs at
maximum heating.
Demisting and defrosting the windows ■ Press button Ê. LED illuminates in
the button when activated.
■ Temperature, air distribution and cooling are regulated automaticallyand the fan runs at high speed.
■ Heated rear window Ü is switched
on automatically 3 38.
To return to Automatic mode: press button Ê or AUTO .
Notice
Demisting and defrosting of the
windows may inhibit an Autostop.
Stop-start system 3 113.
Manual settings Manually changing any of the
following settings will deactivate
Automatic mode:Fan speed Z
Adjust the air flow manually by
switching the fan to the desired
speed.
If the fan is switched off, the air
conditioning is also deactivated.
To return to Automatic mode: Press
AUTO button.
Air distribution M
Press appropriate button for desired
adjustment. LED illuminates in the
button when activated.R=to windscreen and front door
windows.M=to head area.S=to foot well.
Combinations of settings are possible
by pressing two buttons until both
LEDs are illuminated.
To return to Automatic mode: Press
AUTO button.
Cooling AC
Activate or deactivate cooling with the AC button. LED illuminates in the
button when cooling has been
deactivated.
The air conditioning system cools and
dehumidifies (dries) the air when
outside temperature is above a
specific level. Therefore
condensation may form and drip from under the vehicle.
Notice
Air conditioning performance is
reduced when ECO mode has been
activated 3 108.
If no cooling or drying is required,
switch the cooling system off to save
fuel.
To return to Automatic mode: Press
AUTO button.
Air recirculation mode u
Activate or deactivate manual air
recirculation mode with the u button.
LED illuminates in the button when
activated.
Page 103 of 189
Climate control1019Warning
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.
To return to Automatic mode: Press
AUTO button.
Rear heating system
The rear passenger compartment
heating fan assists air flow to the rear
passenger compartment via the rear
air vents.
The rate of air flow is determined by
the fan. Air temperature is controlled
using the temperature control on the
instrument panel.
Rear air conditioning
system
The rear air conditioning system is
actuated in conjunction with the front
passenger compartment air
conditioning system.
Page 104 of 189

102Climate control
Rear air conditioning fan switch
The rear air conditioning fan assists
air flow to the rear passenger
compartment via the rear air vents.
Switch on the fan while the air
conditioning system is operating to
allow cooled and dehumidified (dried) air to be distributed.
The rate of air flow is determined by
the fan.
Auxiliary heater
Coolant heater The Eberspächer engine-
independent, fuel-powered coolant
heater provides rapid heating of the
engine coolant to enable heating of
the vehicle interior without the engine
running.Caution
Do not touch the exhaust pipe. It
may be hot even after the engine
has been switched off, due to
coolant heater operation.
Before starting or programming the
system to start, turn the vehicle's
climate control system to heat and the
air distribution to V.
9Warning
Do not operate the system when
refuelling, when dust or
combustible vapours are present
or in enclosed spaces (e.g.
garage).
Switch off when not required. Heating stops automatically after the
programmed runtime. It will also
cease to operate if the vehicle fuel
level drops too low.
During operation, power from the
vehicle battery is used. The driving
time should therefore be at least as
long as the heating time. For short
journey times, check the vehicle
battery regularly and recharge if
necessary.
To ensure efficient performance,
briefly operate the auxiliary heater
once a month.
Control units The timer or remote control unit turns
the system on and off, and is used to
programme specific departure times.
Page 109 of 189
Climate control107Maintenance
Air intake
The air intake in front of the
windscreen in the engine
compartment must be kept clear to
allow air intake. Remove any leaves,
dirt or snow.
Pollen filter
The pollen filter cleans dust, soot,
pollen and spores from the air
entering the vehicle through the air
intake.
Air conditioning regular
operation In order to ensure continuously
efficient performance, cooling must
be operated for a few minutes once a
month, irrespective of the weather
and time of year. Operation with
cooling is not possible when outside
temperature is too low.Service
For optimal cooling performance, it is
recommended that the climate control system be checked annually, starting
three years after initial vehicle
registration, including:
■ Functionality and pressure test■ Heating functionality
■ Leakage check
■ Check of drive belts
■ Cleaning of condenser and evaporator drainage
■ Performance check
Page 110 of 189

108Driving and operatingDriving and operatingDriving hints............................... 108
Starting and operating ...............109
Engine exhaust .......................... 115
Manual transmission ..................116
Brakes ........................................ 117
Ride control systems .................118
Driver assistance systems .........120
Fuel ............................................ 127
Trailer hitch ................................ 129Driving hints
Driving economically ECO mode
ECO mode is a function that
optimises fuel consumption. It affects engine power, heating, air
conditioning and electrical
consumers.
Activation
Press the ECO button. Control
indicator ECO illuminates in the
instrument cluster when activated.
During driving, it is possible to
temporarily disable ECO mode, e.g.
to increase engine performance, by
depressing the accelerator pedal
firmly. ECO flashes in the instrument
cluster.
ECO mode is reactivated when
pressure is reduced on the
accelerator pedal. ECO stops
flashing and illuminates continuously.
Deactivation
Press the ECO button again. Control
indicator ECO extinguishes in the
instrument cluster.
Control of the vehicle Never coast with engine not
running
Many systems will not function in this
situation ( e.g. brake servo unit, power
steering). Driving in this manner is a
danger to yourself and others.
Page 149 of 189

Vehicle care147
No.Circuit1Vehicle battery (with electronic
key system)2APC battery backup (with elec‐
tronic key system)3Passenger compartment heater4Adaptations5Adaptations6Passenger compartment heater7Additional air conditioning8Additional heating9Electric exterior mirrors, addi‐
tional adaptations10Heated exterior mirrors11Radio, multimedia, electric exte‐
rior mirrors, diagnostic socket12Multimedia, trailer hitch13Fuel injection system, courtesy
lightsNo.Circuit14Fuel injection system, tyre pres‐ sure monitoring system, elec‐
tronic key system15Hazard warning flashers, turn and lane-change signals16Central locking17Left-hand high beam, right-hand
low beam, tail lights, left-hand
daytime running light18Front fog lights, rear fog lights,
number plate lighting19Alarm, horn, automatic light
control, wiper20Instrument cluster21Light switch22Rear window wiper, windscreen
washer pump, horn23APC general battery24Reversing lights25Engine start-stop buttonNo.Circuit26Fuel injection, starter27Airbag, steering column lock28Passenger power window29Power steering30Brake lights31APC battery backup (with elec‐
tronic key system)32Service display33Cigarette lighter, power outlet34Right-hand high beam, left-
hand low beam, headlights,
right-hand daytime running light35Brake lights, ABS, immobiliser36Interior lighting, air conditioning37Starting with electronic key
system38Rear window wiper39Warning chimes
Page 150 of 189
148Vehicle care
No.Circuit40Load compartment power outlet41Power window motor42Rear power outlet43Starting, body control module44Heated seats45Heating, air conditioning46Windscreen wiper47TachographVehicle toolsTools
The jack, wheel wrench, wheel bolt
sleeve, torx key, adapters, wheel
cover hook, towing eye are contained
in a unit, stowed under the driver's
seat.
Slide seat forwards and fold the
backrest forwards 3 42 to access the
tool box. The tool box may be secured
in position with a wing nut.
Wheel changing 3 157, Spare wheel
3 158.
Vehicles with tyre repair kit: The
wheel cover hook and torx key are
stored within the tyre repair kit case,
stowed under the driver's seat.
Tyre repair kit 3 154.