Driving and operating115Parking■ 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 is felt to
engage.
■ 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.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.
If cleaning of the filter is required and automatic cleaning does not occur, it
will be indicated by the illumination of
control indicator F and Z in the
instrument cluster. Seek the
assistance of a workshop
immediately.
Catalytic converter
The catalytic converter reduces the
amount of harmful substances in the
exhaust gases.Caution
Fuel grades other than those listed on page 3 127, 3 172 could
damage the catalytic converter or
electronic components.
Unburnt fuel will overheat and
damage the catalytic converter.
Therefore avoid excessive use of
Driving and operating117Brakes
The brake system comprises two
independent brake circuits.
If a brake circuit fails, the vehicle can
still be braked using the other brake
circuit. However, braking effect is
achieved only when you depress the
brake pedal firmly. You need to use
considerably more force for this. The
braking distance is extended. Seek
the assistance of a workshop before
continuing your journey.
When the engine is not running, the
support of the brake servo unit
disappears once the brake pedal has
been depressed once or twice.
Braking effect is not reduced, but
braking requires significantly greater
force. It is especially important to bear this in mind when being towed.
If control indicator R illuminates in
the instrument cluster while driving and a corresponding message
appears in the Driver Information
Centre, there is a fault in the braking
system. Seek the assistance of a
workshop immediately.Control indicator R 3 83.
Vehicle messages 3 87.
Antilock brake system Antilock brake system (ABS)
prevents the wheels from locking.
ABS starts to regulate brake pressure as soon as a wheel shows a tendency
to lock. The vehicle remains
steerable, even during hard braking.
ABS control is made apparent
through a pulse in the brake pedal
and the noise of the regulation
process.
For optimum braking, keep the brake
pedal fully depressed throughout the
braking process, despite the fact that
the pedal is pulsating. Do not reduce
the pressure on the pedal.
Control indicator u 3 83.
Fault If control indicator u does not go out
a few seconds after the ignition is
switched on, or if it illuminates while driving, there is a fault in the ABS.
Control indicator F 3 82 may alsoilluminate in the instrument cluster
together with a corresponding
message in the Driver Information
Centre. The brake system remains
operational but without ABS
regulation.9 Warning
If there is a fault in the ABS, the
wheels may be liable to lock due
to braking that is heavier than
normal. The advantages of ABS are no longer available. During
hard braking, the vehicle can no longer be steered and may
swerve.
If control indicators u, F , R 3 83
and C 3 82 illuminate, the ABS and
ESP are deactivated and a
corresponding message appears in
the Driver Information Centre. Have
the cause of the fault remedied by a
workshop.
Vehicle messages 3 87.
118Driving and operatingParking brake
Always apply parking brake firmly
without operating the release button,
and apply as firmly as possible on a
downhill or uphill slope.
To release the parking brake, pull the lever up slightly, press the release
button and fully lower the lever.
To reduce the operating forces of the
parking brake, depress the foot brake
at the same time.
Control indicator R 3 83.
Brake assist
If the brake pedal is depressed
quickly and forcefully, maximum
brake force is automatically applied
(full braking).
Maintain steady pressure on the
brake pedal for as long as full braking
is required. Maximum brake force is
automatically reduced when the
brake pedal is released.
Brake assist is not available during an
Autostop.
Stop-start system 3 113.
Hill start assist The system helps prevent unintendedmovement when driving away on
inclines.
When releasing the foot brake after
stopping on an incline, the brakes
remain on for a further 2 seconds. The brakes release automatically as soon
as the vehicle begins to accelerate.Ride control systems
Traction Control system
The Traction Control system (TC) is a
component part of the Electronic
Stability Program (ESP® Plus
) which
improves driving stability when
necessary, regardless of the type of
road surface or tyre grip, by
preventing the drive wheels from
spinning.
As soon as the drive wheels starts to spin, engine output is reduced and
the wheel spinning the most is braked
individually. This considerably
improves the driving stability of the
vehicle on slippery road surfaces.
TC is operational as soon as the
ignition is switched on and control
indicator b extinguishes in the
instrument cluster.
When TC comes into action b
flashes.
Driving and operating1199Warning
Do not let this special safety
feature tempt you into taking risks
when driving.
Adapt speed to the road
conditions.
Control indicator b 3 83.
Deactivation
When spinning of the drive wheels is
required, TC can be deactivated:
Press the Ø button. LED illuminates
in button and a corresponding
message appears in the Driver
Information Centre 3 86.
TC is reactivated by pressing the Ø
button again. LED extinguishes in
button. TC is also reactivated the next time the ignition is switched on.
When vehicle speed reaches
30 mph the TC function will be
restored automatically.
Fault
If the system detects a fault, control indicator b 3 83 illuminates in the
instrument cluster together with F
3 82 and a corresponding message
appears in the Driver Information
Centre 3 86.
Have the cause of the fault remedied
by a workshop.
Vehicle messages 3 87.Electronic stability
program
The Electronic Stability Program
(ESP® Plus
) improves driving stability
when necessary, regardless of the
type of road surface or tyre grip. It also
prevents the drive wheels from
spinning.
As soon as the vehicle starts to
swerve (understeer/oversteer),
engine output is reduced and the
wheels are braked individually. This
considerably improves the driving
stability of the vehicle on slippery road
surfaces.
ESP® Plus
is operational as soon as
the ignition is switched on and control
indicator b extinguishes in the
instrument cluster.
When ESP® Plus
comes into action b
flashes.
120Driving and operating9Warning
Do not let this special safety
feature tempt you into taking risks
when driving.
Adapt speed to the road
conditions.
Control indicator b 3 83.
Deactivation
When spinning of the drive wheels is
required, ESP® Plus
can be
deactivated:
Press the Ø button. LED illuminates
in button and a corresponding
message appears in the Driver
Information Centre 3 86.
ESP® Plus
is reactivated by pressing
the Ø button again. LED
extinguishes in button. ESP® Plus
is
also reactivated the next time the
ignition is switched on.
When vehicle speed reaches
30 mph the ESP® Plus
function will be
restored automatically.
Fault
If the system detects a fault, control indicator b 3 83 illuminates in the
instrument cluster together with F
3 82 and a corresponding message
appears in the Driver Information
Centre 3 86.
Have the cause of the fault remedied by a workshop.
Vehicle messages 3 87.Driver assistance
systems9 Warning
Driver assistance systems are
developed to support the driver
and not to replace the driver's
attention.
The driver accepts full
responsibility when driving the
vehicle.
When using driver assistance
systems, always take care
regarding the current traffic
situation.
Cruise control
The cruise control can store and
maintain speeds of 20 mph and
above. Deviations from the stored speeds may occur when driving uphill or downhill.
For safety reasons the cruise control cannot be activated until the foot
brake has been operated once.
Driving and operating121
Do not use the cruise control if it is notadvisable to maintain a constant
speed.
Control indicators U and m 3 85.
Activation
Press switch m, control indicator U
illuminates green in the instrument
cluster.
Cruise control is now in standby mode
and a corresponding message
appears in the Driver Information
Centre.
Accelerate to the desired speed and
press switch < or ]. The current
speed is now stored and maintained and the accelerator pedal can be
released.Control indicator m illuminates green
in the instrument cluster together with
U and a corresponding message
appears in the Driver Information
Centre.
Vehicle speed can be increased by depressing the accelerator pedal.
The stored speed flashes in the
instrument cluster. When the
accelerator pedal is released, the
previously stored speed is resumed.
The speed is saved until the ignition
is switched off.
Driving and operating125
Deactivate the system by pressing
the r button on the instrument
panel with the ignition on. LED
illuminates in the button when
deactivated. When reverse gear is
selected, no acoustic signal will
sound.
Notice
In versions with Info-Display
indication, the function can be
deactivated via the Infotainment
system. Refer to Infotainment
system manual for further
information.
The function is reactivated by
pressing button r again or the next
time the ignition is switched on.
Fault If the system detects an operating
fault, when selecting reverse gear a
continuous acoustic alarm will sound
for approx. 5 seconds, a
corresponding message appears in
the Driver Information Centre 3 86
and F illuminates in the instrument
cluster 3 82. Consult a workshop to
have the cause of the fault remedied.Caution
When reversing, the area should
be free from obstacles which could impact on the underside of the
vehicle.
Impact to the rear axle, which may
not be visible, could lead to
uncharacteristic changes in the
vehicle handling. In the event of
such an impact, consult a
workshop.
Vehicle messages 3 87.
Rear view camera The rear view camera assists the
driver when reversing by displaying a view of the area behind the vehicle in
the interior mirror or in the Info-
Display.
9 Warning
The rear view camera does not
replace driver vision. Note that
objects that are outside the
camera's field of view, e.g. below
the bumper or underneath the
vehicle, are not displayed.
Do not reverse the vehicle by only looking at the display and checkthe surrounding area behind and
around the vehicle before
reversing.
Driving and operating127
■ the rear doors/tailgate are notclosed correctly,
■ the vehicle had a rear end accident,
■ there are extreme temperature changes.Fuel
Fuel for diesel engines Only use diesel fuel that complies
with EN 590.
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.
Refuelling9 Danger
Before refuelling, switch off engine
and any external heaters with
combustion chambers. Switch off
any mobile phones.
Follow the operating and safety
instructions of the filling station
when refuelling.
9 Danger
Fuel is flammable and explosive.
No smoking. No naked flames or
sparks.
If you can smell fuel in your
vehicle, have the cause of this
remedied immediately by a
workshop.
Caution
In case of misfuelling, do not
switch on ignition.