Page 98 of 201

96Climate control
Demisting and defrosting the
windows ■ Switch cooling n on.
■ 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.Electronic climate control
system
Controls for: ■ Temperature
■ Air distribution and menu selection
■ Fan speed
AUTO=Automatic modeu=air recirculationV=demisting and defrosting
Heated rear window Ü 3 33, Heated
seats ß 3 40.
The preselected temperature is
automatically regulated. In the
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 flowcontrols.
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 Basic setting for maximum comfort:
■ Press AUTO button.
■ Open all air vents.
■ AC on.
■ Set desired temperature.
Temperature preselection
Temperatures can be set to the
desired value.
For reasons of comfort, change
temperature only in small increments.
Page 99 of 201

Climate control97
red=warmblue=cold
Heating 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.
Fan speed
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 button.
Demisting and defrosting the
windows
Press the V button.
Temperature and air distribution are
set automatically and the fan runs at
a high speed.
To return to automatic mode: press
button V or AUTO .
Air distribution
Press s or K repeatedly.
Arrows shown in the display indicate
the distribution settings.
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 AC OFF to switch the cooling
system off, thus saving fuel.
Manual air recirculation mode
Operated with the u button.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.
Rear 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.
Page 106 of 201
104Climate control
Side air vents
Press the vent to open.
Direct the flow of air by swivelling the vent.
Depending upon the position of the
temperature control, air will be
directed into the vehicle via the side
air vents.
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.
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 also keep the contents of the glovebox
cool.Maintenance
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.
Page 114 of 201

112Driving and operating
Service modePress button 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 button
i again for 5 seconds.
Fault If a fault is detected, i button will
flash intermittently. If the service
mode has been activated and there is a fault h, S and R buttons 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
harmful 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
and the emission of smells and
smoke during this process is normal.
Under certain driving conditions, e.g.
short distances, the system cannot
clean itself automatically.
If cleaning of the filter is required and if previous driving conditions did not
enable automatic cleaning, it will be
indicated by illumination of control
indicator A 3 79. Seek the
assistance of a workshop immediately.
Catalytic converter
The catalytic converter reduces the
amount of harmful substances in the
exhaust gases.
Page 134 of 201

132Vehicle careVehicle careGeneral Information...................132
Vehicle checks ........................... 133
Bulb replacement .......................140
Electrical system ........................148
Vehicle tools .............................. 150
Wheels and tyres .......................151
Jump starting ............................. 160
Towing ....................................... 162
Appearance care .......................164General Information
Accessories and vehicle
modifications
We recommend the use of genuine parts and accessories and factory
approved parts specific for your
vehicle type. We cannot assess or
guarantee reliability of other products
- even if they have a regulatory or
otherwise granted approval.
Do not make any modifications to the electrical system, e.g. changes of
electronic control units (chip tuning).
Vehicle storage Storage for a long period of time
The following tasks must be carried
out if the vehicle is to be stored for several months:
■ Wash and wax the vehicle.
■ Have the wax in the engine compartment and underbody
checked.
■ Clean and preserve rubber seals.■ Change engine oil.
■ Drain washer fluid reservoir.
■ Check coolant antifreeze.
■ Adjust tyre pressure to the value specified for full load.
■ Park vehicle in a dry, well ventilated
place.Engage first or reverse
gear.Prevent the vehicle from
rolling.
■ Do not apply parking brake.
■ Open bonnet, close all doors and lock the vehicle.
■ Disconnect the clamp from the negative terminal of the vehicle
battery.Beware that all systems are
not functional, e.g. anti-theft alarm
system.
Putting back into operation
The following tasks must be carried
out if the vehicle is being put back into operation:
■ Connect the clamp to the negative terminal of the vehicle
battery.Activate the electronics of
the power windows.
■ Check tyre pressure.
Page 152 of 201
150Vehicle care
SymbolCircuitZInfotainment system, seat
heating, vehicle display
screen, audio connections,
alarm?Power outletÌCigarette lightereInstrument panelUCentral lockingOTurn signals, rear fog lights, body control moduleDIAGDiagnostic connectoruABS, Electronic stability
programdInterior lights, brake lightsZBody control moduleSTOPBrake lightIBody control module, power windows, air conditioningmLeft heated rear windowSymbolCircuitnRight heated rear windowRWindscreen washerMElectronic immobiliserUHeated seatsFBLCornering lightlHands-free connection&TachographPTOPower take-offjHornÍPreheating, diesel fuel filterxClimate control fanADPAdditional adaptations,Power windows, body
control moduleVehicle tools
Tools
The jack, wheel wrench, adapter, hubcap hook, wrench and towing eye are
contained in a unit, stowed under the front seat.
Page 164 of 201

162Vehicle care
Jump starting procedure
Lead connection order:1. Connect the red lead to the positive terminal of the booster
battery.
2. Connect the other end of the red lead to the jump start terminal of
the vehicle with the discharged
vehicle battery.
3. Connect the black lead to the negative terminal of the booster
battery.
4. Connect the other end of the black
lead to a vehicle grounding point,
such as the engine block or an
engine mounting bolt. Connect as far away from the discharged
vehicle battery as possible,
however at least 60 cm.
Route the leads so that they cannot
catch on rotating parts in the engine
compartment.
To start the engine: 1. Start the engine of the vehicle providing the jump start.
2. After 5 minutes, start the other engine. Start attempts should be
made for no longer than
15 seconds at an interval of
1 minute.
3. Allow both engines to idle for approx. 3 minutes with the leads
connected.
4. Switch on electrical consumers (e.g. headlights, heated rear
window) of the vehicle receiving
the jump start.
5. Reverse above sequence exactly when removing leads.Towing
Towing the vehicle The towing eye is stowed with thevehicle tools 3 150.
Disengage the cover using a suitable
tool and remove.
Screw the towing eye clockwise into
the front towing point and tighten fully using the wheel wrench.
Attach a tow rope - or better still a tow
rod - to the towing eye, never to the
bumper or front suspension units.
Page 165 of 201

Vehicle care163Caution
Do not tow the vehicle from the
rear. The front towing eye must
only be used for towing and not
recovering a vehicle.
Switch on ignition to release steering
wheel lock and to permit operation of
brake lights, horn and windscreen
wipers.
Switch off the air suspension system
3 110.
Transmission in neutral.
If neutral cannot be selected on
vehicles with MTA transmission, the vehicle must only be towed with the
drive wheels raised off the ground.
Caution
Drive slowly. Do not drive jerkily.
Excessive tractive force can
damage the vehicle.
When the engine is not running,
considerably more force is needed to
brake and steer.
To prevent the entry of exhaust fumes
from the towing vehicle, switch on the air recirculation system and close the
windows.
Seek the assistance of a workshop.
After towing, unscrew the towing eye
and refit the cover.
Towing another vehicle
Attach a tow rope - or better still a tow
rod - to the rear towing eye, never to
the rear axle and suspension units.
The rear towing eye must only be
used for towing and not recovering a
vehicle.
Caution
Drive slowly. Do not drive jerkily.
Excessive tractive force can
damage the vehicle.