Driving and operating111Driving and
operatingDriving hints ............................... 111
Control of the vehicle ...............111
Steering ................................... 111
Starting and operating ...............112
New vehicle running-in ............112
Ignition switch positions ...........112
Starting the engine ..................112
Vehicle shutdown ....................113
Overrun cut-off ........................ 114
Stop-start system ....................114
Parking .................................... 116
Engine exhaust .......................... 117
Diesel particle filter ..................117
Catalytic converter ...................118
Manual transmission ..................118
Manual transmission automa‐ ted .............................................. 119
Transmission display ...............119
Starting the engine ..................119
Selector lever .......................... 120
Manual mode ........................... 121
Electronic driving programmes 122
Fault ........................................ 122Brakes........................................ 123
Antilock brake system .............123
Parking brake .......................... 124
Brake assist ............................. 124
Hill start assist ......................... 125
Ride control systems .................125
Traction Control system ..........125
Electronic Stability Control ......126
Driver assistance systems .........127
Cruise control .......................... 127
Parking assist .......................... 129
Fuel ............................................ 131
Fuel for petrol engines .............131
Fuel for diesel engines ............131
Fuel for natural gas operation . 131
Refuelling ................................ 132
Fuel consumption - CO 2-
Emissions ............................... 134
Trailer hitch ................................ 135
General information .................135
Driving characteristics and towing tips .............................. 135
Trailer towing ........................... 135Driving hints
Control of the vehicle
Never coast with engine not
running (except during Autostop)
Many systems will not function in this
situation (e.g. brake servo unit, power
steering). Driving in this manner is a
danger to yourself and others. All
systems function during an Autostop,
but there will be a controlled reduction in power steering assist and vehicle
speed is reduced.
Stop-start system 3 114.
Pedals
To ensure the pedal travel is
uninhibited, there must be no mats in the area of the pedals.
Steering If power steering assist is lost
because the engine stops or due to a system malfunction, the vehicle can
be steered but may require increased
effort.
112Driving and operatingCaution
Never leave the steering wheel on
full lock when the vehicle is
stationary, as this may damage
the power steering pump.
Starting and operating
New vehicle running-in Do not brake unnecessarily hard for
the first few journeys.
During the first drive, smoke may
occur because of wax and oil
evaporating off the exhaust system.
Park the vehicle in the open for a
while after the first drive and avoid
inhaling the fumes.
During the running-in period fuel and
engine oil consumption may be
higher and the cleaning process of the diesel particle filter may take
place more often. Autostop may be
inhibited to allow for charging the
vehicle battery.
Diesel particle filter 3 117.Ignition switch positions0:steering wheel lock released,
ignition off1:ignition on, for diesel engine:
preheating2:starting
Starting the engine
Manual transmission: operate clutch
and brake.
Manual transmission automated: operate brake, the transmission
automatically shifts to N (neutral)
Do not operate the accelerator pedal.
Driving and operating113Diesel engine: turn the key to position
1 for preheating until control
indicator ! extinguishes.
Turn the key briefly to position 2 and
release.
Before restarting or to switch off the
engine, turn the key back to position
0.
Autostop
During an Autostop, the engine is
restarted automatically by depressing
the clutch pedal.
Vehicles with manual transmission
automated (MTA): Shift to a forward
gear, release brake pedal or move
lever to +, – or R to enable an
automatic restart.
Stop-start system 3 114.Starting the vehicle at low
temperatures
The start of the engine without
additional heaters is possible down to -25 °С for diesel engines and -30 °C
for petrol engines. Required is an
engine oil with the correct viscosity,
the correct fuel, performed services
and a sufficiently charged vehicle
battery.
Turbo engine warm-up
Upon start-up, engine available
torque may be limited for a short time, especially when the engine
temperature is cold. The limitation is
to allow the lubrication system to fully protect the engine.
Vehicle shutdown Fuel cut-off system In the event of a collision of a certain
severity, the fuel system is cut-off and
the engine is switched off
automatically, for safety reasons.Control indicator 9 illuminates if the
fuel cut-off switch is triggered and, depending on version, a
corresponding warning message may
also appear in the Driver Information
Centre 3 89.
Generic warning control indicator 9
3 80.
Note
In addition, the vehicle is
automatically unlocked and the
hazard warning flashers and interior lights are illuminated.
Turn the ignition key to position 0 to
prevent vehicle battery discharge and
seek the assistance of a workshop
immediately. Have the vehicle
checked for fuel leaks in the engine
compartment, beneath the vehicle
and near the fuel tank.
To reset the fuel cut-off system and
enable the vehicle to be driven:
1. Turn the ignition key to position 1 3 112.
2. Fully actuate the right turn signal light 3 100.
3. Deactivate the right turn signal light.
114Driving and operating4. Fully actuate the left turn signallight.
5. Deactivate the left turn signal light.
6. Repeat steps 2, 3, 4 and 5.
7. Turn the ignition key to position 0.9Danger
If you can smell fuel in the vehicle,
or a fuel leak is present, have the
cause of this remedied
immediately by a workshop. Do
not reset the fuel cut-off system, to avoid the risk of fire.
Fuel system messages 3 95.
Overrun cut-off The fuel supply is automatically cut-
off during overrun, i.e. when the
vehicle is driven with a gear engaged
but accelerator is released.
Depending on driving conditions, the
overrun cut-off may be deactivated.
Stop-start system
The stop-start system helps to save
fuel and to reduce exhaust emissions. When conditions allow, it switches off
the engine as soon as the vehicle is
at a low speed or at a standstill, e.g.
at a traffic light or in a traffic jam. It
starts the engine automatically as
soon as the clutch is depressed.
A vehicle battery sensor ensures that an Autostop is only performed if thevehicle battery is sufficiently charged
for a restart.
Activation
The stop-start system is available as
soon as the engine is started, the
vehicle starts-off and the conditions
as stated below in this section are
fulfilled.Deactivation
Deactivate the stop-start system
manually by pressing ^ in the centre
console. LED in the button illuminates
to confirm deactivation.
Depending on version, a
corresponding message, e.g.
Start&Stop disconnected , may also
be displayed in the Driver Information
Centre 3 89.
Driving and operating115AutostopIf the vehicle is at a low speed or at a
standstill, activate an Autostop as
follows:
● depress the clutch pedal
● set the lever to neutral
● release the clutch pedal
The engine will be switched off while
the ignition stays on.
An Autostop is indicated when control
indicator ^ flashes in the Driver
Information Centre 3 89.
During an Autostop, the heating,
power steering and brake
performance will be maintained.
Caution
The steering assist may be
reduced during an Autostop.
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 and 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 engine exhaust temperature is not too high, e.g. after driving
with high engine load
● the ambient temperature is not too low
● the climate control system allows
an Autostop
● the self-cleaning function of the diesel 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 3 112.
Vehicle battery discharge protection
To ensure reliable engine restarts,
several vehicle battery discharge
protection features are implemented
as part of the stop-start system.
116Driving and operatingRestarting 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 conditions
occurs 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 89.
Fault
If control indicator Æ illuminates in the
instrument cluster, there is a fault in
the stop-start system 3 88.
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 89.
Generic warning 9 3 80.
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.
● Always apply parking brake without pressing release
button. Apply as firmly as
possible on a downhill slope or
uphill slope. Depress brake
pedal at the same time to
reduce operating force.
● Switch off the engine.
● 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 towardsthe kerb.
Driving and operating119Caution
It is not advisable to drive with thehand resting on the selector lever.
When gearshifting is recommended
to improve fuel economy, control
indicator [ or Ò illuminates in the
Driver Information Centre 3 84.
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.
Starting the engine
Depress the brake pedal when
starting the engine.
If the brake pedal is not depressed, a
warning chime will sound 3 94 and
the engine cannot be started.
Depending on version, a
corresponding warning message,
e.g. Depress brake pedal , may also
be displayed in the Driver Information Centre 3 89.
Note
The volume of the warning chime
can also be adjusted via the Driver
Information Centre 3 89.
When the brake pedal 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 3 114.
Driving and operating125Hill start assistThe system helps prevent unintended
movement 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 84 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 89. Seek the assistance of
a workshop to have the fault remedied.
The Hill start assist is not active
during an Autostop.
Stop-start system 3 114.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.