118Driving and operating● the self-cleaning function of thediesel particle filter is not active
● the vehicle has moved since the last Autostop
● the brake vacuum is sufficient ● the windscreen wipers are not operating at fast speed
● reverse gear is not selected
● heated rear window is not operating
Ambient temperature near to the
freezing point can inhibit an Autostop.
For manual transmission automated
vehicles, an Autostop may be
inhibited until a speed of approx.
10 km/h is reached.
Immediately after motorway driving
an Autostop may be inhibited.
New vehicle running-in 3 114.
Vehicle battery discharge protection
To ensure reliable engine restarts,
several vehicle battery discharge
protection features are implemented
as part of the stop-start system.Restarting the engine
Manual transmission
The selector lever must be in neutral
to enable an automatic restart.
Depress the clutch pedal to restart the
engine.
Manual transmission automated
If the lever is in position N, select
another gear, otherwise release the
brake pedal or move the lever to +, –
or R to enable an automatic restart.
If an electrical accessory, e.g. a
portable CD player, is connected to
the power outlet, a brief power drop during the restart may be noticeable.
Restarting the engine with the key When one of the following conditionsoccurs during an Autostop, the
engine will need to be restarted
manually using the key.
● the driver's seat belt is unfastened and the driver's door
is opened
● three minutes have elapsed since the engine was switched offIn this event, control indicator ^
flashes in the Driver Information
Centre in conjunction with a warning
chime. Depending on version, a
corresponding message may also be
displayed in the Driver Information
Centre 3 90.
Fault
If control indicator Æ illuminates in the
instrument cluster, there is a fault in
the stop-start system 3 89.
Depending on version, 9 will
illuminate as an alternative if control
indicator Æ is not present. A
corresponding warning message,
e.g. Start&Stop unavailable , may also
be displayed in the Driver Information
Centre 3 90.
Generic warning 9 3 81.
Seek the assistance of a workshop.
126Driving and operatingBrakes
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 the brake pedal
is depressed firmly. Considerably
more force is needed 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.
Control indicator R 3 84.
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.
After starting off the system performs
a self-test which may be audible.
Fault
In the event of a fault, control indicator
u illuminates in the instrument
cluster. Depending on version, a
corresponding warning message,
e.g. ABS unavailable , may also be
displayed in the Driver Information Centre 3 90.9 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.
Have the cause of the fault remedied
by a workshop.
Control indicator u 3 84.
Driving and operating129Deactivation
ASR can be switched off when
spinning of drive wheels is required:
press ASR OFF briefly.
LED in button illuminates and,
depending on version, a
corresponding message, e.g. ASR
disconnect , may also be displayed in
the Driver Information Centre 3 90.
ASR is reactivated by pressing
ASR OFF again.
ASR is also reactivated the next time
the ignition is switched on.
Fault
ASR will switch off automatically in the event of a fault. Control indicator
R will illuminate in the instrument
cluster. Depending on version, a
corresponding message, e.g. ESP
unavailable , may also appear in the
Driver Information Centre 3 90.
Have the cause of the fault remedied by a workshop.
Control indicator R 3 85.
Electronic Stability Control
Electronic Stability Control (ESC)
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.
ESC is operational after each engine
start as soon as control indicator R
extinguishes.
When ESC operates, R flashes.
The ESC system is automatically
activated when the vehicle is started
and cannot be deactivated.
9 Warning
Do not let this special safety
feature tempt you into taking risks
when driving.
Adapt speed to the road
conditions.
130Driving and operatingFault
In the event of a fault, ESC will be automatically switched off and control
indicator R will illuminate in the
instrument cluster. Depending on
version, a corresponding message,
e.g. ESP unavailable , may also
appear in the Driver Information
Centre 3 90. The LED in the
ASR OFF button will also illuminate.
Have the cause of the fault remedied
by a workshop.
Control indicator R 3 85.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 above approx.
30 km/h. Deviations from the stored
speeds may occur when driving uphill or downhill.
Activating in first gear is not possible.
Do not use the cruise control if it is not advisable to maintain a constant
speed.
Switching on
Driving and operating131Turn end of lever to the ON position;
control indicator m 3 90 illuminates in
the instrument cluster. Depending on
version, a corresponding message,
e.g. Cruise Control on , may also be
displayed in the Driver Information
Centre 3 90.
Activation Accelerate to the desired speed and
push lever upwards ( +); the current
speed is stored and maintained.
Accelerator pedal can be released.
Vehicle speed can be increased by
depressing the accelerator pedal.
When the accelerator pedal is
released, the previously stored speed
is resumed.
Cruise control remains activated
while gearshifting.
Increase speed
With cruise control active, push lever
upwards ( +) or briefly push lever
upwards ( +) repeatedly: speed
increases continuously or in small
increments.Alternatively accelerate to the desired speed and store by pushing lever
upwards ( +).
Reduce speed
With cruise control active, push lever
downwards ( -) or briefly push lever
downwards ( -) repeatedly; speed
decreases continuously or in small
increments.
Deactivation Automatic deactivation: ● vehicle speed below approx. 30 km/h
● the brake pedal is depressed
● the clutch pedal is depressed
● the traction control system/Anti- Slip Regulator (ASR) or
Electronic Stability Control (ESC)
is operating
● the antilock brake system (ABS) is operating
Resume stored speed
Press = at a speed above 30 km/h.
The stored speed will be obtained.Switching off
Turn end of lever to the OFF position;
control indicator m extinguishes. The
stored speed is deleted. Switching off the ignition also deletes the stored
speed.
Parking assist9 Warning
It is the driver who bears full
responsibility for the parking
manoeuvre.
Always check the surrounding
area while reversing and using the parking assist system.
The parking assist makes parking
easier by measuring the distance between the vehicle and obstacles,
and giving acoustic signals.
132Driving and operating
The system consists of four ultrasonicparking sensors in the rear bumper.
Activation
The parking assist is turned on
automatically when reverse gear is
engaged.
The intervals between the beeps
become shorter as the vehicle gets
closer to the obstacle. When the
distance is less than 30 cm, the beeping is a continuous tone which
stops immediately when the distance
is increased.
Deactivation
The parking assist automatically
switches off when reverse gear is
disengaged.
Fault
In the event of a fault in the system,
r 3 85 illuminates in the instrument
cluster.
Depending on version, a
corresponding warning message,
e.g. Parking help unavailable , may
also be displayed in the Driver
Information Centre 3 90.
The following conditions could affect
the system's performance:
● The ultrasonic sensors are not clean. Keep the bumper free ofmud, dirt, snow, ice and slush.
● The sensors are covered by frost
or ice.
● The rear doors / tailgate are open.
● An object was hanging out of the
rear doors / tailgate during the
last drive cycle. Once the object
has been removed, the parking
assist will return to normal
operation.
● An object or cover is attached to the rear of the vehicle.
● The bumper is damaged. Take the vehicle to a workshop to
repair the system.
● Other conditions, such as vibrations from a jackhammer,
are affecting system
performance.
In the event the system still does not
work properly, seek the assistance of
a workshop.
Vehicle care175Interior care
Interior and upholstery
Only clean the vehicle interior,
including the instrument panel fascia
and panelling, with a dry cloth or
interior cleaner.
Clean the leather upholstery with
clear water and a soft cloth. In case of heavy soiling, use leather care.
The instrument cluster and the
displays should only be cleaned using
a soft damp cloth. If necessary, use a
weak soap solution.
Clean fabric upholstery with a
vacuum cleaner and brush. Remove
stains with an upholstery cleaner.
Clothing fabrics may not be
colourfast. This could cause visible
discolourations, especially on light-
coloured upholstery. Removable
stains and discolourations should be
cleaned as soon as possible.
Clean seat belts with lukewarm water or interior cleaner.Caution
Close Velcro fasteners as open
Velcro fasteners on clothing could damage seat upholstery.
The same applies to clothing with
sharp-edged objects, like zips or
belts or studded jeans.
Plastic and rubber parts
Plastic and rubber parts can be
cleaned with the same cleaner as
used to clean the body. Use interior cleaner if necessary. Do not use any
other agent. Avoid solvents and petrol in particular. Do not use high-
pressure jet cleaners.
Service and maintenance177certain service work may be requiredmore frequently than the regular
service interval.
Service display 3 78.
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 interval with remaining
engine oil life duration
The service interval is based on
several parameters depending on
usage.
When the engine oil requires
changing, control indicator I will
flash in the instrument cluster 3 88.Depending on version, a message
may also appear in the Driver
Information Centre 3 90.
Service display 3 78.Recommended fluids,
lubricants and parts
Recommended fluids andlubricants
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
ageing control, whereas viscosity
grade gives information on the oil's
thickness over a temperature range.