Driving and operating121speed is too high, the transmission
only switches to a higher gear via
kickdown 3 121.
When gearshifting is recommended
to improve fuel economy, control
indicator [ or Ò illuminates in the
Driver Information Centre 3 83.
Electronic driving programmes
Eco mode E
When automatic mode is engaged,
the Eco mode can be selected to
reduce fuel consumption.
Eco mode selects the most suitable gear depending on the speed of the
vehicle, the engine speed and the
intensity with which the accelerator is pressed.
Activation
Press E on the selector lever housing.
Control indicator E is shown in the
transmission display to indicate
activation.
Deactivation
Eco mode is switched off by:
● pressing E again
● switching to manual mode
In order to protect the transmission at extremely high clutch temperatures,
an intermittent audible warning chime
may sound. In such cases, depress
the brake pedal, select N and apply
the parking brake to allow the clutch
to cool down.
Kickdown If the accelerator pedal is pressed
past the pressure point, the
transmission shifts to a lower geardepending on engine speed. Full
engine power is available for
acceleration.
If engine speed is too high the
transmission switches to a higher
gear, even in manual mode. Without
kickdown this automatic shift is not
effected in manual mode.
Fault
In the event of a fault, control indicator s is shown in the transmission
display.
Continued driving is possible,
provided the vehicle is driven with
care and anticipation. A warning
122Driving and operatingmessage may appear in the Driver
Information Centre in conjunction with
a warning chime 3 93.
Notice
The volume of the warning chime
can also be adjusted via the Driver
Information Centre 3 88.
Have the cause of the fault remedied by a workshop.Brakes
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 82.
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 88.
124Driving and operatingHill start assistThe system helps prevent unintendedmovement when driving away on
inclines.
When releasing the brake pedal after
stopping on an incline, the brakes
remain on for a further two seconds.
The brakes release automatically as
soon as the vehicle begins to
accelerate.
If control indicator Z 3 83 illuminates
while driving, there is a fault in the Hill
start assist. Depending on version, a
corresponding warning message,
e.g. Hill holder unavailable , may also
be displayed in the Driver Information
Centre 3 88. Seek the assistance of
a workshop to have the fault remedied.
The Hill start assist is not active
during an Autostop.
Stop-start system 3 113.Ride control systems
Traction Control system The Anti-Slip Regulator (ASR) is a
component of the Electronic Stability
Control (ESC).
ASR 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.
Driving and operating125
ASR is operational after each engine
start as soon as the control indicator
R extinguishes.
When ASR operates, R flashes.
9 Warning
Do not let this special safety
feature tempt you into taking risks
when driving.
Adapt speed to the road
conditions.
Deactivation
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 88.
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 88.
Have the cause of the fault remedied by a workshop.
Control indicator R 3 83.
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.
Driving and operating127
Do not use the cruise control if it is notadvisable to maintain a constant
speed.
Switching on
Turn end of lever to the ON position;
control indicator m 3 88 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 88.
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. 20 mph
● 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
Resume stored speed
Press = at a speed above 20 mph.
The stored speed will be obtained.
128Driving and operatingSwitching 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 assist
The parking assist makes parking
easier by measuring the distance between the vehicle and obstacles,
and giving acoustic signals. It is the
driver, however, who bears full
responsibility for the parking
manoeuvre.
The system consists of four ultrasonic parking sensors in the rear bumper.
System operation
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.
FaultIn the event of a fault in the system,
r 3 83 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 88.
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.
Vehicle care157Notice
In countries where the tyre pressure
monitoring system is legally
required, the use of wheels without
pressure sensors will invalidate the
vehicle type approval.
Low tyre pressure condition
A detected low tyre pressure
condition is indicated by illumination
of control indicator w 3 85 together
with a warning chime. In vehicles with Multifunction version of the Driver
Information Centre, a corresponding message is also displayed.
If w illuminates, stop as soon as
possible and inflate the tyres as
recommended 3 185.
After inflating, driving may be
required to update the tyre pressure
values in the system. During this time
w may illuminate.
If w illuminates at lower temperatures
and extinguishes after some driving,
this could be an indicator for
approaching a low tyre pressure
condition. Check tyre pressure of all
four tyres.
If the tyre pressure must be reduced
or increased, switch off ignition.
Only mount wheels with pressure
sensors, otherwise the tyre pressure
value cannot be recognised by the
system and w flashes for several
seconds then illuminates
continuously. In vehicles with
Multifunction version of the Driver Information Centre, a corresponding
message is also displayed.A spare wheel or temporary spare
wheel is not equipped with pressure
sensors. TPMS is not operational for
these wheels. For the further three wheels, TPMS remains operational.
Spare wheel 3 163, Wheel changing
3 161.
Control indicator w and (depending
on version) a corresponding message appears at each ignition cycle until
the tyres are inflated to the correct
tyre pressure.
Driver Information Centre 3 88.
Relearn function
After changing wheels, TPMS needs
to recalculate. The relearn process
takes up to 20 minutes of driving with
a minimum speed of 12 mph.
If problems occur during the relearn
process, control indicator w flashes
for several seconds then illuminates
continuously and (depending on
version) a warning message is
displayed in the Driver Information Centre.
Driver Information Centre 3 88.
170Vehicle careGlass panel
Never clean with solvents or abrasive
agents, fuels, aggressive media (e.g.
paint cleaner, acetone-containing
solutions etc.), acidic or highly
alkaline media or abrasive pads. Do
not apply wax or polishing agents to
the glass panel.
Wheels and tyres
Do not use high-pressure jet
cleaners.
Clean rims with a pH-neutral wheel
cleaner.
Rims are painted and can be treated
with the same agents as the body.
Paintwork damageRectify minor paintwork damage witha touch-up pen before rust forms.
Have more extensive damage or rust
areas repaired by a workshop.
Underbody Some areas of the vehicle underbody
have a PVC undercoating while other
critical areas have a durable
protective wax coating.After the underbody is washed, check
the underbody and have it waxed if
necessary.
Bitumen/rubber materials could
damage the PVC coating. Have
underbody work carried out by a
workshop.
Before and after winter, wash the
underbody and have the protective
wax coating checked.
Natural gas system
Do not direct the steam jet or high-
pressure jet towards natural gas
system components. It is particularly important to protect the natural gastank and the pressure valves on the
vehicle underbody and the bulkhead
in the engine compartment.
These components must not be
treated using chemical cleaners or
preservatives.
Have components of the natural gas
system cleaned by a workshop
authorised to carry out maintenance
of natural gas vehicles.Towing equipment
Do not clean the coupling ball bar with a steam-jet or high-pressure jet
cleaner.
Interior 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.