126Climate controlTo switch on, press Y for
one second. The predetermined heating duration, e.g. 30, is
displayed. The factory setting is
30 minutes.
The heating duration can be set in
increments of ten minutes. Due to the power consumption, note the heatingduration.
● Press l four times.
● Press Y and OFF
simultaneously, Y/x flashes.
● Adjust using k or l to select the
desired heating duration.
● Press Y and OFF simultaneously
to confirm.
To switch off, press OFF.
Programming y
The system calculates the operating time of the heater depending on the
temperature inside the vehicle.
● Press k twice.
● Press Y and OFF
simultaneously, y flashes.● Adjust using k or l to select the
departure time.
● Press Y and OFF simultaneously
to confirm.
To switch on, press Y for one second ,
HTM is displayed.
Heating stops automatically after the
programmed departure time, or can
be manually switched off.
● Press k twice.
● Press OFF for one second, HTM
goes out.
Set time
If the vehicle battery is disconnected
or its voltage is too low, the time will
need to be reset.
● Press l once.
● Press Y and OFF
simultaneously, Ö flashes.
● Adjust using k or l to set the
time.
● Press Y and OFF simultaneously
to confirm.Heating level
The preferred heating level for
programmed departure times can be set to between C1 and C5.
● Press k three times.
● Press Y and OFF
simultaneously, Y flashes.
● Adjust using k or l to set the
heating level.
● Press Y and OFF simultaneously
to confirm.
To display the passenger
compartment temperature, press l
twice.
128Climate controlMaintenanceAir 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.
Note
Pollen filter is only fitted to vehicles
with air conditioning system.
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 to annually check the
climate control system, 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
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.
Driving and operating129Driving and
operatingDriving hints ............................... 129
Driving economically ...............129
Control of the vehicle ...............130
Steering ................................... 130
Starting and operating ...............131
New vehicle running-in ............131
Ignition switch positions ...........131
Power button ........................... 131
Starting the engine ..................133
Idle speed control ....................134
Vehicle shutdown ....................134
Overrun cut-off ........................ 135
Stop-start system ....................135
Parking .................................... 138
Engine exhaust .......................... 138
Diesel particle filter ..................138
Catalytic converter ...................139
AdBlue ..................................... 139
Manual transmission ..................145
Brakes ........................................ 146
Antilock brake system .............146
Parking brake .......................... 147Brake assist............................. 147
Hill start assist ......................... 147
Ride control systems .................148
Traction Control system ..........148
Electronic stability program .....149
Driver assistance systems .........150
Cruise control .......................... 150
Speed limiter ........................... 153
Parking assist .......................... 154
Rear view camera ...................156
Fuel ............................................ 158
Fuel for diesel engines ............158
Refuelling ................................ 158
Fuel consumption - CO 2-
Emissions ............................... 160
Trailer hitch ................................ 160
General information .................160
Driving characteristics and towing tips .............................. 160
Trailer towing ........................... 161
Trailer stability assist ...............161Driving hints
Driving economically
ECO mode ECO mode is a function that
optimises fuel consumption. It affects
engine power and torque,
acceleration, gear shift indication,
heating, air conditioning and electrical consumers.
Activation
Press ECO. Control indicator ECO
illuminates in the instrument cluster when activated.
Driving and operating131Starting and operating
New vehicle running-in
Do not brake unnecessarily hard for
the first few journeys and after new
disc brake pads have been fitted.
During the first drive, smoke may
occur because of wax and oil
evaporating off the exhaust system.
Park the vehicle in the open for a
while after the first drive and avoid
inhaling the fumes.
During the running-in period, fuel and engine oil consumption may be
higher and the cleaning process of
the diesel particle filter may take
place more often. Autostop may be
inhibited to allow for charging the
vehicle battery.
Stop-start system 3 135.
Diesel particle filter 3 138.
Ignition switch positions
Turn key:0:ignition off: Some functions
remain active until key is
removed or driver's door is
opened, provided the ignition was on previously1:accessory power mode: Steeringwheel lock released, some
electrical functions are operable,
ignition is off2:ignition is on, diesel engine is
preheating. Control indicators
illuminate and most electrical
functions are operable3:engine start: Release key after
starting procedure beginsSteering wheel lock
Remove key from ignition switch and
turn steering wheel until it engages.9 Danger
Never remove the key from
ignition switch during driving as
this will cause steering wheel lock.
Power button
Electronic key must be inside the
vehicle, either in the card reader or
the front passenger compartment.
Driving and operating133These functions stop working when
the driver's door is opened and the vehicle is locked.
Note
Always take the electronic key with
you when exiting the vehicle.
The electronic key being left in the
card reader is indicated by a warning
chime 3 104 and a message in the
Driver Information Centre 3 103
when the driver's door is opened.9 Danger
Never leave an electronic key
inside the vehicle when children or animals are left in the vehicle, to
avoid unintended operation of
windows, doors or engine. Risk of
fatal injury.
Fault
If the engine cannot be started, the
cause may be one of the following:
● Fault in electronic key.
● Electronic key out of reception range.
● Battery voltage too low.
● Overload of the central locking system by operating at frequentintervals, the power supply is
interrupted for a short time.
● Interference from higher-power radio waves from other sources.
Battery replacement 3 22.
Central locking system 3 26.
Electronic key system 3 24.
Starting the engine
Manual transmission: operate clutch.
Do not accelerate.
Diesel engines: turn the key to
position 2 for preheating until control
indicator ! extinguishes in the
instrument cluster 3 100.
Turn key to position 3 and release.
The increased engine speed
automatically returns to normal idling
speed as the engine temperature
rises.
Start attempts should not last longer
than 15 seconds. If engine does not
start, wait 15 seconds before
repeating starting procedure. If
necessary, depress accelerator
before repeating starting procedure.
Before restarting or to switch off the
engine, turn key back to 0.
During an Autostop, the engine can
be started by depressing the clutch
pedal. Stop-start system 3 135.
Turbo engine warm-up Upon start-up, engine available
torque may be limited for a short time,
especially when the engine
temperature is cold. The limitation is
to allow the lubrication system to fully protect the engine.
136Driving and operatingdeactivated automatically, and the
engine is switched off. Restart engine by pressing START/STOP .
Power button 3 131.
Autostop
If the vehicle is at a low speed or at a standstill, activate an Autostop as
follows:
● depress the clutch pedal
● move the selector lever to neutral
● release the clutch pedal
The engine will be switched off while
the ignition stays on if the required
conditions are met.An Autostop is indicated when Ï
illuminates in the instrument cluster
3 101.
During an Autostop, heating and brake performance will be
maintained. Brake assist, however, is
not available 3 147.Caution
The power steering assist may be
reduced during an Autostop.
If you exit the vehicle while the engine
is in an Autostop, a warning chime will
sound and a message " IGNITION
OFF " is displayed in the Driver
Information Centre as a reminder that
the engine is on standby and has not
been switched off.
Conditions for an Autostop
The stop-start system checks if each
of the following conditions is fulfilled,
otherwise an Autostop will be
inhibited and control indicator \ will
illuminate in the instrument cluster:
● the stop-start system is not manually deactivated
● the bonnet is fully closed
● the driver's door is closed or the driver's seat belt is fastened
● the vehicle battery is sufficiently charged and in good condition
● the engine is warmed up
● the engine coolant temperature is
not too high
● the outside temperature is not too
low or too high (e.g. below 0 °C
or above 30 °C)
● the defrosting function is not activated
● the climate control system does not inhibit an Autostop
● the brake vacuum is sufficient
● the self-cleaning function of the diesel particle filter is not active
3 138
● the Antilock brake system (ABS) 3 146, Traction Control system
(TC) 3 148 and Electronic
158Driving and operating● ice, snow, mud, or anything elsecovers the camera lens. Clean
the lens, rinse it with water, and
wipe it with a soft cloth
● the rear doors/tailgate are not closed correctly
● the vehicle had a rear-end accident
● there are extreme temperature changesFuel
Fuel for diesel engines
Only use diesel fuel that complies
with EN 590. The fuel must have low
sulphur content (max. 10 ppm).
Equivalent standardised fuels with a
biodiesel (= FAME according to
EN14214) content of max. 7% by
volume (like DIN 51628 or equivalent
standards) may be used.
In countries outside the European
Union, use Euro-Diesel fuel with a
sulphur concentration below 50 ppm.Caution
Use of fuel that does not comply to EN 590 or similar can lead to
engine powerloss, increased wear
or engine damage and loss of
warranty.
Do not use marine diesel oils, heating
oils, Aquazole and similar diesel-
water emulsions. Diesel fuels must
not be diluted with fuels for petrol
engines.
The flow and filterability of diesel fuels are temperature-dependent. When
temperatures are low, refuel with
diesel fuel with guaranteed winter
properties.
Diesel fuel filter 3 171, diesel fuel
system bleeding 3 171.
Refuelling9 Danger
Before refuelling, switch off engine
and any external heaters with
combustion chambers.
Vehicles with stop-start system:
The engine must be switched off
and the ignition key removed, to avoid risk of engine being
restarted automatically by the
system.
Switch off any mobile phones.
Follow the operating and safety
instructions of the filling station
when refuelling.
182Vehicle 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
and lane-change signals14Central 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