112Driving and operatingDriving and
operatingDriving hints ............................... 112
Control of the vehicle ...............112
Steering ................................... 113
Starting and operating ...............113
New vehicle running-in ............113
Ignition switch positions ...........113
Starting the engine ..................114
Vehicle shutdown ....................114
Overrun cut-off ........................ 115
Stop-start system ....................115
Parking .................................... 118
Engine exhaust .......................... 119
Diesel particle filter ..................119
Catalytic converter ...................119
Manual transmission ..................120
Manual transmission automa‐ ted .............................................. 121
Transmission display ...............121
Starting the engine ..................121
Selector lever .......................... 121
Manual mode ........................... 123
Electronic driving programmes 123
Fault ........................................ 124Brakes........................................ 125
Antilock brake system .............125
Parking brake .......................... 126
Brake assist ............................. 126
Hill start assist ......................... 126
Ride control systems .................127
Traction Control system ..........127
Electronic Stability Control ......128
Driver assistance systems .........129
Cruise control .......................... 129
Parking assist .......................... 130
Fuel ............................................ 133
Fuel for petrol engines .............133
Fuel for diesel engines ............133
Fuel for natural gas operation . 133
Refuelling ................................ 134
Fuel consumption - CO 2-
Emissions .............................. 136
Trailer hitch ................................ 137
General information .................137
Driving characteristics and towing tips .............................. 137
Trailer towing ........................... 137Driving 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 may be a controlled
reduction in power steering assist and
vehicle speed is reduced.
Stop-start system 3 115.
Pedals
To ensure the pedal travel is
uninhibited, there must be no mats in the area of the pedals.
Use only floor mats which fit properly
and are fixed by the retainers on the
driver's side.
Driving downhill
Engage a gear when driving downhill
to ensure that sufficient brake
pressure is available.
Driving and operating113SteeringIf 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.Caution
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.
Additionally, the cleaning process of
the diesel particle filter may take
place more often. Diesel particle filter
3 119.
Autostop may be inhibited to allow for charging of the vehicle battery. Stop-start system 3 115.
Ignition switch positions Turn key:0:ignition off:
Some functions remain active
until key is removed or driver's
door is opened, provided the
ignition was on previously1:ignition on, steering wheel lock
released.
Control indicators illuminate and
most electrical functions are
operable.
Diesel engine is preheating.2:engine start: Release key after
starting procedure begins
114Driving and operatingSteering wheel lock
Remove key from ignition switch and
turn steering wheel until it engages.
Starting the engine
Turn key to position 1 and move the
steering wheel slightly to release the
steering wheel lock.
Manual transmission: operate clutch
and brake pedal.
Manual transmission automated:
operate brake pedal, the transmission
automatically shifts to N (neutral)
Do not operate the accelerator pedal.
Diesel engine: turn key to position 1
for preheating until control
indicator ! extinguishes.
Turn key briefly to position 2 and
release.
Before restarting or to switch off the
engine, turn 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 3 115.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.
Driving and operating115Control 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.
Notice
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
3 113.
2. Fully actuate the right turn signal light 3 100.
3. Deactivate the right turn signal light.4. 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 0.9 Danger
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.
116Driving and operatingDeactivation
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.
Autostop
If 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 power 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
Driving and operating117● 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.
6 mph is reached.
Immediately after motorway driving
an Autostop may be inhibited.
New vehicle running-in 3 113.
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 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.
Driving and operating119Engine 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 89.
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.
120Driving and operatingCaution
Fuel grades other than those listedon pages 3 133, 3 182 could
damage the catalytic converter or
electronic components.
Unburnt petrol will overheat and
damage the catalytic converter.
Therefore avoid excessive use of the 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 three 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 inadvisable to drive with hand
resting on the selector lever.
When gearshifting is recommended
to improve fuel economy, control
indicator [ or Ò illuminates in the
Driver Information Centre.
Gear shifting control indicator 3 84.
Stop-start system 3 115.