118Climate controlClimate controlClimate control systems.............118
Heating and ventilation system 118
Air conditioning system ...........119
Electronic climate control system .................................... 120
Rear heating system ...............122
Rear air conditioning system ...123
Auxiliary heater ........................124
Air vents ..................................... 129
Adjustable air vents .................129
Fixed air vents ......................... 130
Glovebox cooler ......................130
Maintenance .............................. 130
Air intake ................................. 130
Air conditioning regular operation ................................ 130
Service .................................... 130Climate control systems
Heating and ventilation system
Controls for: ● temperature
● fan speed
● air distribution
Heated rear window Ü 3 45.
Temperature
red:warmblue:coldHeating 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 distributionM:to head areaL:to head area and foot wellK:to foot wellJ:to windscreen, front door
windows and foot wellV:to windscreen and front door
windows
Intermediate settings are possible.
Demisting and defrosting the
windows
● Set temperature control to warmest level.
● Set fan speed to highest level.
● Set air distribution control to V.
● Switch on heated rear window Ü.
130Climate controlRear air ventsDepending on vehicle, additional
adjustable air vents are located in the
rear passenger compartment.
Fixed air vents
Additional air vents are located
beneath the windscreen and door
windows, in the foot wells and,
depending on vehicle, in the rear
passenger compartment.
Glovebox cooler The air conditioning system can alsokeep 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.
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.
ServiceFor optimal cooling performance, it is
recommended to annually check the
climate control system, starting
3 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
Note
Refrigerant R-134a contains
fluorinated greenhouse gases with a global warming potential of 1430.
Front air conditioning system is filled
with 0.58 kg and has a CO 2
equivalent of 0.83 tonnes, the front
and rear air conditioning system is
filled with 0.88 kg and has a CO 2
equivalent of 1.26 tonnes.
Depending on vehicle, information
regarding air conditioning refrigerant
appears on a label located in the
engine compartment.
186Vehicle careNo.Circuit1Battery backup (with electronic
key system)2Adaptations3Adaptations4Vehicle battery (with electronic
key system)5Additional heating and ventila‐
tion / Air conditioning system6Supplementary heating and
ventilation system7Electric exterior mirrors / Addi‐
tional adaptations8Heated exterior mirrors9Radio / Multimedia / Electric
exterior mirrors / Diagnostic
socket10Multimedia / Trailer hitch11Courtesy lights / Battery
discharge protectionNo.Circuit12Right-hand high beam / Left-
hand low beam / Sidelights /
Right-hand daytime running
light13Hazard warning flashers / Turn
lights14Central locking15Left-hand high beam / Right-
hand low beam / Tail lights /
Left-hand daytime running light16Front fog lights / Rear fog lights /
Number plate lighting17Alarm / Horn / Lighting / Wiper18Instrument cluster19Heating and ventilation system20Rear window wiper / Wind‐
screen washer pump / Horn21General battery22Reversing lights23Brake switchNo.Circuit24Fuel injection / Starter25Airbag / Steering column lock26Passenger power window27Power steering28Brake lights29Battery backup (with electronic
key system)30Service display31Cigarette lighter / Power outlet32Heating and ventilation system33Brake lights / ABS / Immobiliser34Interior lighting / Air conditioning35Starting with electronic key
system36Rear window wiper37Warning chimes38Load compartment power outlet39Driver power window
Vehicle care191PunctureA puncture or severely under-inflated
tyre is indicated by illumination of
control indicator w together with C
3 99 and a corresponding message
appears in the Driver Information
Centre. Stop vehicle and switch off
engine.
Tyre pressure 3 216.
Tyre repair kit 3 193.
Spare wheel 3 197.
Wheel changing 3 196.
Relearn functionAfter a puncture has been repaired
and the driver has inflated the tyres to
the correct tyre pressure, the tyre
pressure monitoring system needs to recalculate.
Tyre pressure 3 216.
Tyre repair kit 3 193.
During driving, select the tyre
pressure menu in the Driver
Information Centre by pressing button
on end of wiper lever. Press and hold button for approx. 5 seconds to
initialise recalculation. A
corresponding message appears in
the Driver Information Centre.
Several minutes of driving at a speed above 40 km/h may be required to
complete the relearn process. The system can only provide limited
information during this time.
If problems occur during the relearn
process, control indicator w remains
illuminated and a warning message is displayed in the Driver Information
Centre.
Driver Information Centre 3 103.
Vehicle messages 3 104.General information
The use of tyre chains or
commercially available liquid tyre
repair kits can impair the function of
the system. Factory-approved tyre
repair kits can be used.
Tyre repair kit 3 193.
Tyre chains 3 192.
External high-power radio equipment
could disrupt the tyre pressure
monitoring system.
Each time the tyres are replaced, the
tyre pressure monitoring system
sensors must be dismounted and
serviced by a workshop.
Tread depth Check tread depth at regular
intervals.
Tyres should be replaced for safety
reasons at a tread depth of 2–3 mm
(4 mm for winter tyres).
For safety reasons it is recommended
that the tread depth of the tyres on
one axle should not vary by more than 2 mm.
Service and maintenance205Service and
maintenanceGeneral information ...................205
Service information ..................205
Recommended fluids, lubricants and parts .................................... 207
Recommended fluids and lubricants ................................ 207General information
Service information In order to ensure economical and
safe vehicle operation and to
maintain the value of your vehicle, it
is of vital importance that all
maintenance work is carried out at the proper intervals as specified.
The detailed, up-to-date service
schedule for the vehicle is available at
the workshop.
Service display 3 94.
Engine identification 3 210.
European service intervals Maintenance of your vehicle is
required every 40,000 km or after
two years, whichever occurs first,
unless otherwise indicated by the
service display.
A shorter service interval can be valid for severe driving behaviour, e.g. for
taxis and police vehicles.
The European service intervals are
valid for the following countries:Andorra, Austria, Belgium, Croatia,
Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy,
Latvia, Liechtenstein, Lithuania,
Luxembourg, Netherlands, Norway,
Poland, Portugal, Slovakia, Slovenia,
Spain, Sweden, Switzerland, United
Kingdom.
Service display 3 94.
International service intervals
Israel:
Maintenance of your vehicle is
required every 40,000 km or after two
years, whichever occurs first, unless
otherwise indicated by the service
display.
Albania, Bosnia-Herzegovina,
Kosovo, Macedonia, Montenegro,
Serbia:
Maintenance of your vehicle is
required every 30,000 km or after
two years, whichever occurs first,
unless otherwise indicated by the
service display.
206Service and maintenanceRomania, Bulgaria, Moldova, Cyprus:
Maintenance of your vehicle is
required every 30,000 km or after
one year, whichever occurs first,
unless otherwise indicated by the service display.
Turkey:
Maintenance of your vehicle is
required every 20,000 km or after
one year, whichever occurs first,
unless otherwise indicated by the
service display.
Morocco, South Africa, Russia,
Ukraine, Belarus, Kazakhstan:
Maintenance of your vehicle is
required every 15,000 km or after
one year, whichever occurs first, unless otherwise indicated by the
service display.
Algeria, Tunisia, Malta, Singapore:
Maintenance of your vehicle is
required every 10,000 km or after
one year, whichever occurs first,
unless otherwise indicated by the service display.Egypt:
Maintenance of your vehicle is
required every 8,000 km or after
one year, whichever occurs first, unless otherwise indicated by the
service display.
Severe operating conditions exist if
one or more of the following
circumstances occur frequently: Cold
starting, stop and go operation, trailer operation, mountain driving, driving
on poor and sandy road surfaces,
increased air pollution, presence of
airborne sand and high dust content,
driving at high altitude and large
variations of temperature. Under
these severe operating conditions, certain service work may be required
more frequently than the regular service interval.
Service display 3 94.
Confirmations
Confirmation of service is recorded in the Service and warranty booklet.
The date and mileage is completed
with the stamp and signature of the
servicing workshop.Make sure that the Service and
warranty booklet is completed
correctly as continuous proof of
service is essential if any warranty or
goodwill claims are to be met, and is
also a benefit when selling the
vehicle.
Service display The service interval is based on
several parameters depending on
usage.
The service display, located in the
Driver Information Centre, indicates
when the next service is due. Seek
the assistance of a workshop.
Service display 3 94.
Service and maintenance207Recommended fluids,
lubricants and parts
Recommended fluids and lubricants
Only use products that meet the
recommended specifications.9 Warning
Operating materials are
hazardous and could be
poisonous. Handle with care. Pay
attention to information given on
the containers.
Engine oil
Engine oil is identified by its quality
and its viscosity. Quality is more
important than viscosity when
selecting which engine oil to use. The oil quality ensures e.g. engine
cleanliness, wear protection and oil
aging control, whereas viscosity
grade gives information on the oil's
thickness over a temperature range.
Dexos is the newest engine oil quality
that provides optimum protection for diesel engines. If it is unavailable,
engine oils of other listed qualities
must be used.
Select the appropriate engine oil based on its quality and on the
minimum ambient temperature
3 211.
Topping up engine oilCaution
In case of any spilled oil, wipe it up and dispose of it properly.
Engine oils of different manufacturersand brands can be mixed as long as
they comply with the required engine oil quality and viscosity.
Select the appropriate engine oil
based on its quality and on the
minimum ambient temperature
3 211.
Additional engine oil additives
The use of additional engine oil
additives could cause damage and
invalidate the warranty.
Engine oil viscosity grades
The SAE viscosity grade gives
information of the thickness of the oil.
Multigrade oil is indicated by two
figures, e.g. SAE 5W-30. The first figure, followed by a W, indicates the
low temperature viscosity and the
second figure the high temperature
viscosity.
Select the appropriate viscosity grade depending on the minimum ambient
temperature 3 211.
All of the recommended viscosity grades are suitable for high ambient
temperatures.
Coolant and antifreeze
Use only silicate-free long life coolant
(LLC) antifreeze approved for the
vehicle. Consult a workshop.
The system is factory filled with
coolant designed for excellent
corrosion protection and frost
protection down to approx. -28 °C.
This concentration should be
maintained all year round. The use of additional coolant additives that
intend to give additional corrosion
208Service and maintenanceprotection or seal against minor leaks
can cause function problems. Liability
for consequences resulting from the
use of additional coolant additives will be rejected.
Washer fluid Use only washer fluid approved for
the vehicle to prevent damage of
wiper blades, paintwork, plastic and
rubber parts. Consult a workshop.
Brake fluid Over time, brake fluid absorbs
moisture which will reduce braking
effectiveness. The brake fluid should
therefore be replaced at the specified
interval.
AdBlue
Only use AdBlue to reduce the
nitrogen oxides in the exhaust
emission 3 142.