108Driving and operatingEngine exhaust9Danger
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
under set driving conditions and may
take up to 25 minutes. Typically it
needs 15 minutes. Autostop is not
available and fuel consumption may
be higher during this period. 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 the cleaning of the filter is required
and if previous driving conditions did
not enable automatic cleaning, it will
be indicated by control indicator %.
Depending on version, a warning
message may also appear in the
Driver Information Centre 3 80.
Control indicator % illuminates when
diesel particle filter is full. Start cleaning process as soon as possible to avoid damage to the engine.
Cleaning process To activate cleaning process,
continue driving, keep engine speed
above 2000 rpm. Shift down if
necessary. Diesel particle filter
cleaning is then started.Caution
If the cleaning process is
interrupted, there is a risk of
provoking severe engine damage.
Cleaning takes place quickest at high engine speeds and loads.
Control indicator % extinguishes as
soon as the self-cleaning operation is
complete.
Catalytic converter
The catalytic converter reduces the
amount of harmful substances in the
exhaust gases.
Caution
Fuel grades other than those listed on pages 3 120, 3 166 could
damage the catalytic converter or
electronic components.
Unburnt petrol will overheat and
damage the catalytic converter.
Therefore avoid excessive use of
Driving and operating109the starter, running the fuel tank
dry and starting the engine by
pushing or towing.
In the event of misfiring, uneven
engine running, a reduction in engine
performance or other unusual
problems, have the cause of the fault
rectified by a workshop as soon as
possible. In an emergency, driving
can be continued for a short period,
keeping vehicle speed and engine
speed low.
Manual transmission
To engage reverse, with the vehicle
stationary, wait 3 seconds after
depressing the clutch pedal, pull up
the collar on the selector lever and
engage the gear.
If the gear does not engage, set the
lever to neutral, release the clutch
pedal and depress again; then repeat
gear selection.
Do not slip the clutch unnecessarily.
When operating, depress the clutch
pedal completely. Do not use the
pedal as a foot rest.
Caution
It is not advisable to drive with the hand resting on the selector lever.
When gearshifting is recommended
to improve fuel economy, control
indicator [ or Ò illuminates in the
Driver Information Centre 3 76.
110Driving and operatingManual transmission
automated
The manual transmission automated (MTA) permits manual (manual
mode) or automatic gear shifting
(automatic mode), both with
automatic clutch control.
Transmission display
Shows the mode and current gear.
Starting the engine Depress the foot brake when starting
the engine.
If the foot brake is not depressed, a
warning message appears in the
Driver Information Centre together
with a warning chime 3 86 and the
engine cannot be started.
Notice
The volume of the warning chime can also be adjusted via the Driver
Information Centre 3 80.
When the foot brake is depressed, the
transmission automatically shifts to
N (neutral) and the engine can be
started. There may be a slight delay.
Autostop
During an Autostop, if the gearshift
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 of the
engine.
Stop-start system 3 105.Selector lever
Always move the selector lever in the
appropriate direction as far as it will
go.
After selecting A/M, + or - and
releasing the selector lever, the lever
automatically returns to the centre
position.
N=Neutral.o=Drive position.A/M=Switch between automatic and manual mode.
The transmission display
shows AUTO when in
automatic mode.
Driving and operating111
R=Reverse gear.
Engage only when vehicle is
stationary. The transmission
display shows "R" when
reverse gear is engaged.+=Shift to a higher gear.-=Shift to a lower gear.
Starting-off
When the engine is started, depress
the foot brake and move the selector
lever towards + to engage first gear.
Shift to a higher or lower gear by
moving selector lever to + or -.
Gears can be skipped by moving the selector lever repeatedly at short
intervals.
The driver will be alerted to an
incorrect gear selection by an audible warning chime in conjunction with a
message in the Driver Information
Centre 3 80. The system will
downshift, selecting the most
appropriate gear automatically.
If R is selected, reverse gear is
engaged. The vehicle starts to move
when the foot brake is released. To
start off quickly, release the foot brake
and accelerate immediately after
engaging a gear.
Move the selector lever towards A/M
to engage automatic mode; the
transmission shifts to other gears
automatically, dependent on driving
conditions.
To engage manual mode, move the
selector lever towards A/M. The
current gear will appear in the
transmission display.
Stopping the vehicle
In automatic or manual mode,
first gear is engaged and the clutch is
released when the vehicle is stopped. In R, reverse gear remains engaged.
When stopping on gradients, engage parking brake or depress the foot
brake. To prevent overheating of the
clutch, an intermittent audible
warning chime may sound as a signal
to depress the foot brake or apply the
parking brake.
Switch off engine if stopping for a
lengthy period, e.g. in traffic jams.When the vehicle is parked and the
driver's door is opened, a warning
chime will sound if neutral is not
selected or the foot brake has not
been depressed.
Engine braking Automatic mode
When driving downhill, the manual
transmission automated does not
shift into higher gears until a fairly
high engine speed has been reached.
It shifts down in good time when
braking.
Manual mode
To utilise the engine braking effect, select a lower gear in good time when driving downhill.
112Driving and operating
Rocking the vehicleRocking the vehicle is only
permissible if the vehicle is stuck in
sand, mud, snow or a hole. Move the selector lever between R and A/M (or
between + and -) in a repeat pattern,
while applying light pressure to the
accelerator pedal. Do not race the
engine and avoid sudden
acceleration.
Parking
Apply the parking brake. The most recently engaged gear (see
transmission display) remains
engaged. With N, no gear is engaged.
When the ignition is switched off, the transmission no longer responds to
movement of the selector lever.
If the ignition is not switched off, or the
parking brake has not been applied, a warning chime will sound upon
opening the driver's door.
Manual mode If engine speed is too low, the
transmission automatically shifts to a
lower gear.In manual mode, no automatic
shifting to a higher gear takes place at high engine revolutions. If engine
speed is too high, the transmission
only switches to a higher gear via
kickdown 3 112.
When gearshifting is recommended
to improve fuel economy, control
indicator [ or Ò illuminates in the
Driver Information Centre 3 76.
Electronic driving
programmes
Eco mode EWhen 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 the E button 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 the E button 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 foot brake, select N and apply the
parking brake to allow the clutch to
cool down.
Driving and operating113
KickdownIf the accelerator pedal is pressedpast the pressure point, the
transmission shifts to a lower gear depending 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
message may appear in the Driver
Information Centre in conjunction with
a warning chime 3 86.
Notice
The volume of the warning chime
can also be adjusted via the Driver
Information Centre 3 80.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 75.
Antilock brake system
Antilock brake system (ABS)
prevents the wheels from locking.
Driving and operating115Hill start assistThe 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 two seconds.
The brakes release automatically as
soon as the vehicle begins to
accelerate.
If control indicator Z illuminates
while driving, there is a fault in the Hill
start assist 3 76 . Seek the assistance
of a workshop to have the fault
remedied.
The Hill start assist is not active
during an Autostop.
Stop-start system 3 105.Ride control systems
Traction Control system The Anti-Slip Regulator (ASR) is a
component of the Electronic Stability
Program (ESP).
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.
ASR is operational as soon as the
control indicator R extinguishes.
When ASR is active, control indicator
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 button ASR OFF briefly.
116Driving and operating
LED in button illuminates and,
depending on version, a message
may also appear in the Driver
Information Centre 3 80.
ASR is reactivated by pressing the
ASR OFF button 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
message may also appear in the
Driver Information Centre 3 80.
Have the cause of the fault remedied
by a workshop.
Control indicator R 3 76.
Electronic stability
program
Electronic Stability Program (ESP)
improves driving stability when
necessary, regardless of the type ofroad 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 is operational as soon as control
indicator R extinguishes.
When ESP comes into action, control indicator R flashes.
The ESP system is automatically
activated when the vehicle is started
and cannot be deactivated9 Warning
Do not let this special safety
feature tempt you into taking risks
when driving.
Adapt speed to the road
conditions.
Fault
In the event of a fault, ESP will be
automatically switched off and control
indicator R will illuminate in the
instrument cluster. Depending on
version, a message may also appear
in the Driver Information Centre 3 80.
The LED in the ASR OFF button will
also illuminate.
Have the cause of the fault remedied
by a workshop.
Control indicator R 3 76.