
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.

106Driving and operatingDriving and operatingDriving hints............................... 106
Starting and operating ...............106
Engine exhaust .......................... 112
Manual transmission ..................113
Manual transmission automa‐
ted .............................................. 114
Brakes ........................................ 118
Ride control systems .................119
Driver assistance systems .........121
Fuel ............................................ 127
Trailer hitch ................................ 129
Auxiliary features .......................130Driving hints
Control of the vehicleNever coast with engine not
running (except during Autostop)
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. All
systems function during an Autostop,
but there will be a controlled reduction
in power steering assist and vehicle
speed is reduced.
Stop-start system 3 108.
Pedals
To ensure the pedal travel is
uninhibited, there must be no mats in the area of the pedals.
Power steering Never leave the steering wheel on full
lock when the vehicle is stationary as this may damage the power steering
pump.Starting 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 3 108.
Diesel particle filter 3 112.

Driving and operating107Ignition switch positionsSt=Ignition offA=Steering wheel lock released,ignition offM=Ignition on, for diesel engine:
preheatingD=StartingStarting the engine
Manual transmission: operate clutch.
Manual transmission automated:
operate brake; transmission
automatically shifts to N.
Do not accelerate.
Turn the key to position M for
preheating, until control indicator N
extinguishes from the Driver
Information Centre.
Turn key to position D 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 St.
During an Autostop, the engine can be started by depressing the clutch
pedal. Stop-start system 3 108.

108Driving and operatingIdle speed control
To increase the idle speed press the
switch. After a few seconds the
function will be activated.
The function will be deactivated
when:
■ The clutch pedal is depressed
■ The accelerator pedal is depressed
■ MTA is not in neutral N
■ Vehicle speed is above 0 mph
■ Control indicator A, W or C
illuminate in the instrument cluster
To increase or decrease the fast idle
speed rate, consult a workshop.
Overrun cut-off
The fuel supply is automatically cut off
during overrun, i.e. when the vehicle
is driven with a gear engaged but accelerator is released.
Stop-start system The stop-start system helps to save
fuel and to reduce the exhaust
emission. When conditions allow, it
switches off the engine as soon as the
vehicle is at low speed or standstill,
e.g. at a traffic light or in a traffic jam.
It starts the engine automatically as
soon as the clutch is depressed. A vehicle battery sensor ensures that
an Autostop is only performed if the
vehicle battery is sufficiently charged
for a restart.
Activation The stop-start system is available assoon as the engine is started, the
vehicle starts-off and the conditions
as stated below in this section are
fulfilled.Deactivation
Deactivate the stop-start system
manually by pressing the stop-start
Î button. LED in the button
illuminates when the system is
deactivated.
Autostop
If the vehicle is at low speed or
standstill, activate an Autostop as
follows:
■ depress the clutch pedal
■ shift the selector lever to N
■ release the clutch pedal

Driving and operating109
The engine will be switched off while
the ignition stays on if the required conditions are met.
An Autostop is indicated when Ï
illuminates green in the instrument
cluster.
During an Autostop, the brake
performance will be maintained.
Conditions for an Autostop
The stop-start system checks if each
of the following conditions is fulfilled,
otherwise an Autostop will be
inhibited.
■ 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 ambient temperature is not too low
■ the defrosting function is not activated
■ the climate control system does not
inhibit an Autostop
■ the brake vacuum is sufficient
■ the vehicle has moved since the last Autostop
■ the diesel particle filter self- cleaning function is in progress
An Autostop may be less available as
the ambient temperature approaches
freezing point.Certain settings of the climate control system may inhibit an Autostop. See
Climate control chapter for further
information 3 94.
Immediately after motorway driving
an Autostop may be inhibited.
Autostop may also be inhibited
temporarily if the vehicle battery has
been recharged by an external
source.
New vehicle running-in 3 106.
Vehicle battery discharge protection
To ensure reliable engine restarts, several vehicle battery discharge
protection features are implemented
as part of the stop-start system.
Restart of the engine by the
driver
Depress the clutch pedal to restart the
engine. If the selector lever has been
shifted out of N or other conditions are
not met, start using the ignition key.
Control indicator Ï will extinguish in
the instrument cluster when the
engine is restarted.

110Driving and operating
If the selector lever is shifted out of
N before depressing the clutch first, a
restart will not take place.
Restart of the engine by the
stop-start system
The selector lever has to be in N to
enable an automatic restart.
If one of the following conditions
occurs during an Autostop, the
engine will be restarted automatically
by the stop-start system. Control
indicator Ï will flash green in the
instrument cluster during an
automatic engine restart.
■ The stop-start system is manually deactivated
■ the engine temperature is too low ■ the vehicle battery is discharged
■ the brake vacuum is not sufficient
■ the vehicle starts to move
■ the defrosting function is activated
■ the climate control system requests
an engine start
■ the predetermined timing has been
exceededIf 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 broken during restart.
Warning chimes 3 84.
Fault
If control indicator Ï illuminates
yellow, there is a fault in the stop-start system 3 82. Seek the assistance of
a workshop.
Parking ■ 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 or
uphill slopes. Operate the foot
brake at the same time to reduce
operating force.■ Switch off the engine and ignition. Turn the steering wheel until the
steering wheel lock engages.
■ If the vehicle is on a level surface or
uphill slope, engage first gear
before switching off the ignition. On
an uphill slope, turn the front
wheels away from the kerb.
If the vehicle is on a downhill slope, engage reverse gear before
switching off the ignition. Turn the
front wheels towards the kerb.
■ Lock the vehicle and activate the anti-theft locking and anti-theft
alarm systems.
Air suspension
Operates automatically when the
vehicle is driven. The air suspension
system constantly adjusts the ride
height according to the vehicle load.
For further information on the air
suspension system, refer to the
operating instructions supplied.

Driving and operating111
Master switchCaution
The air suspension system must
be switched off when the vehicle is being towed, jump‐started, raised
off the ground or transported.
Do not switch off the air
suspension system when driving.
The master switch is located on the
door pillar.
Remote control
When increased ground clearance or
improved vehicle access is required,the suspension can be raised or
lowered using the remote control.
The remote control unit is magnetic
and can be fixed to any metal part of
the vehicle.
With the ignition switched on, press
the appropriate button for 2 seconds
to adjust the suspension height.
Indicator light will flash intermittently
while height adjustment is in progress
and illuminates when complete.
Handle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
Pre-programmed settings Adjusts the suspension height to oneof three pre-programmed positions.
The buttons are only functional when
the engine is running.l=lowered positionk=normal positionj=raised position
Manual settings
Manual adjustment can only be
performed when the vehicle is
stationary.
Select by pressing button h for 2
seconds, then button R to raise, or
button S to lower.
To exit, press any of the pre-
programmed buttons.
When the vehicle is moving, manual
adjustment will exit automatically. If
the ignition is switched off, the vehicle
will return to normal ride height when
the ignition is switched back on.

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.