112Driving and operating
AutostopIf the vehicle is at low speed or
standstill, activate an Autostop as
follows:
■ depress the clutch pedal
■ shift the selector lever to neutral (manual transmission) or N
(manual transmission automated)
■ release the clutch pedal
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 heating
performance, power steering and 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 self-cleaning function of the diesel particle filter is not active
■ the vehicle has moved since the last Autostop
Otherwise an Autostop will be
inhibited.
An Autostop may become
unavailable as the ambient
temperature approaches freezing
point.
Certain settings of the climate control
system may also inhibit an Autostop.
See Climate control chapter for
further information 3 96.
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 3 109.
Driving and operating113
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 neutral (manual transmission)
or N (manual transmission
automated) or other conditions are
not met, start using the ignition key.
The green control indicator Ï will
extinguish in the instrument cluster
when the engine is restarted.
If the selector lever is shifted out of
neutral (manual transmission) or N
(manual transmission automated) before depressing the clutch first, a
restart will not take place.Restart of the engine by the
stop-start system
The selector lever must be in neutral
(manual transmission) or N (manual
transmission automated) 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. Controlindicator Ï will flash green in the
instrument cluster during an
automatic engine restart.
■ The stop-start system is manually deactivated
■ the bonnet is opened
■ the driver's seat belt is unfastened and the driver's door is opened
■ 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
exceeded
If 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 interrupted during the restart.
Warning chimes 3 86.
Fault If control indicator Ï illuminates
yellow, there is a fault in the stop-start
system 3 83. Seek the assistance of
a workshop.
Parking9 Warning
■ Do not park the vehicle on an
easily ignitable surface. The
high temperature of the exhaust system could ignite the surface.
Driving and operating117Manual transmission
To engage reverse, with the vehicle
stationary depress the clutch pedal, pull up the collar on the selector lever
and engage the gear.
If the gear does not engage, set the
lever in 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 inadvisable to drive with hand
resting on the selector lever.
Manual 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.
118Driving and operatingStarting the engineDepress the foot brake when starting
the engine. If the foot brake is not
depressed, T illuminates in the
transmission display and the engine
cannot be started.
When the foot brake is depressed, the
transmission automatically shifts to
N (neutral); "N" appears in the
transmission display and the engine
can be started. There may be a slight delay.
Selector leverAlways move the selector lever in the
appropriate direction as far as it will
go.Upon release, it automatically
returns to the centre position.N=Neutral.A/
M=Switch between automatic and manual mode.
The transmission display
shows "A" when in automatic
mode.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, the
transmission is in automatic
mode.Depress the foot brake and
move the selector lever towards + to
engage first gear.
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.
In 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.
To engage first gear, depress foot
brake and move selector lever
towards + or -. 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.
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
120Driving and operating
Activate the Winter mode if you have
problems starting off on a slippery
road surface.
Activation
Press the V button.Control indicator
V is shown in the transmission
display.The transmission switches to
automatic mode and the vehicle
starts off in a suitable gear.
Deactivation
The Winter mode is switched off by:
■ pressing the V button again,
■ turning off the ignition,
■ switching to manual mode.
In order to protect the transmission at extremely high clutch temperatures,
an intermittent audible warning may
sound.In such cases, depress the
foot brake, select "N" and apply the
parking brake to allow the clutch to
cool down.Laden mode kg
It is possible to use the Laden mode
in both manual and automatic
modes.In both cases, the gearshifting
patterns are adapted automatically
for carrying an increased payload.
Activation
Press the kg button.Control indicator
kg is shown in the transmission
display.The transmission will then
select optimized gearshift patterns.
Deactivation
The Laden mode is switched off by:
■ pressing the kg button again,
■ turning off the ignition.
Kickdown If 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
W is shown in the transmission
display. Continued driving is possible
provided the vehicle is driven with
care and anticipation.
Have the cause of the fault remedied
by a workshop.
Driving and operating121Interruption of power
supply
The clutch is not disengaged if there
is an interruption of the power supply
when a gear is engaged. The vehicle
cannot move.
If the vehicle battery is discharged,
start the vehicle using jump leads
3 168.
If the cause of the fault is not a
discharged vehicle battery, seek the
assistance of a workshop.
If neutral cannot be selected, the
vehicle must only be towed with the
drive wheels raised off the ground
3 170.
Towing the vehicle 3 170.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 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.
Control indicator R 3 80.
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 81.
Fault If control indicators u and A
illuminate with the messages CHECK
ABS and CHECK ESP in the Driver
Information Centre, there is a fault in
the ABS. The brake system remains
operational but without ABS
regulation.
Driving and operating127
Automatic deactivation:■ Vehicle speed drops below 20 mph,
■ The brake pedal is depressed,
■ The clutch pedal is depressed,
■ Selector lever in N.
The speed is stored and a
corresponding message appears in
the Driver Information Centre.
Resume stored speed
Press switch R at a speed above
20 mph.
If the stored speed is much higher
than the current speed, the vehicle
will accelerate powerfully until the
stored speed is obtained.
Deleting the stored speed Press switch m: Green control
indicators U and m extinguish in the
instrument cluster.
Cruise control speed limiter
The speed limiter prevents the
vehicle exceeding a preset maximum
speed above 20 mph.Activation
Press switch U, control indicator U
illuminates yellow in the instrument
cluster.
Cruise control speed limiter function
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 recorded.
The vehicle can be driven normally
but it will not be possible to exceed the programmed speed limit except in an
emergency.
Where the limit speed cannot be
maintained, e.g. when driving on a
steep decline, the limit speed will
flash in the Driver Information Centre.
Increase limit speed
The limit speed can be increased
continuously or in small increments
by holding down or tapping switch <
repeatedly.
Reduce limit speed
The limit speed can be decreased
continuously or in small increments
by holding down or tapping switch ]
repeatedly.
Exceeding the limit speed
In the event of an emergency it is
possible to exceed the limit speed by
depressing the accelerator pedal
firmly beyond the point of resistance.
The limit speed will flash in the Driver Information Centre during this period.
Release the accelerator pedal and
the speed limiter function is
reactivated once a speed lower than the limit speed is obtained.
134Driving and operating
The pitch of the audible warning will
change if a turn signal light on the
trailer or the towing vehicle fails.
Trailer stability assist
If the system detects snaking
movements, engine power is reduced
and the vehicle/trailer combination is
selectively braked until the snaking ceases. While the system is working,keep steering wheel as still as
possible.
Trailer stability assist (TSA) is a
function of the Electronic stability
program (ESP) 3 124.Auxiliary features
Power take-off
To activate, with the vehicle
stationary and the engine idling:
■ Select neutral (MTA = N)
■ Depress the clutch pedal
■ Press switch on the instrument panel
■ Release clutch pedal
The engine idle speed increases to 1,200 rpm.
If the system does not operate, repeat
the procedure or gradually release
the clutch pedal.
To deactivate, depress the clutch
pedal and press switch on the
instrument panel.