132Driving and operatingDriving and
operatingDriving hints ............................... 133
Control of the vehicle ...............133
Steering ................................... 133
Starting and operating ...............133
New vehicle running-in ............133
Ignition switch positions ...........134
Power button ........................... 135
Retained power off ..................136
Starting the engine ..................136
Overrun cut-off ........................ 138
Stop-start system ....................138
Parking .................................... 140
Engine exhaust .......................... 141
Exhaust filter ............................ 141
Catalytic converter ...................142
AdBlue ..................................... 143
Automatic transmission ..............145
Transmission display ...............145
Selector lever .......................... 146
Manual mode ........................... 147
Electronic driving programmes 147
Fault ........................................ 147
Interruption of power supply ....148Manual transmission ..................148
Drive systems ............................ 149
All-wheel drive ......................... 149
Brakes ........................................ 150
Antilock brake system .............150
Parking brake .......................... 150
Brake assist ............................. 151
Hill start assist ......................... 151
Ride control systems .................151
Traction Control system ..........151
Electronic Stability Control ......152
Descent control system ...........153
Driver assistance systems .........154
Cruise control .......................... 154
Speed limiter ........................... 156
Forward collision alert .............157
Following distance indication ...159
Parking assist .......................... 160
Rear view camera ...................162
Traffic sign assistant ................164
Lane departure warning ..........167
Fuel ............................................ 168
Fuel for petrol engines .............168
Fuel for diesel engines ............170
Fuel for liquid gas operation ....170
Refuelling ................................ 171
Trailer hitch ................................ 175
General information .................175Driving characteristics and
towing tips .............................. 175
Trailer towing ........................... 176
Towing equipment ...................176
Driving and operating133Driving 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 3 138.
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 side.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.
A vehicle message will be displayed
in the Info Display.Caution
Vehicles equipped with hydraulic
power steering:
If the steering wheel is turned until it reaches the end of its travel, and
is held in that position for more
than 10 seconds, damage may
occur to the power steering
system and there may be loss of
power steering assist.
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 exhaust filter may take place more
often. Autostop may be inhibited to
allow for charging the battery.
Exhaust filter 3 141.
134Driving and operatingIgnition switch positions0:ignition off: Some functions
remain active until key is
removed or driver's door is
opened, provided the ignition was
on previously1:accessory power mode: Steering wheel lock released, some
electrical functions are operable,
ignition is off2:ignition on power mode: Ignition
is on, diesel engine is preheating.
Control indicators illuminate and
most electrical functions are
operable. To turn the key from
position 2 to 1 or 0, first push the
key all the way in towards the steering column3:engine start: Release key after
starting procedure begins
To turn off the vehicle:
1. Make sure the vehicle is stopped.
2. If the vehicle is equipped with an automatic transmission, set the
selector lever to position P.
3. Push the key all the way in
towards the steering column, then
turn the key to position 0.
4. Remove the key.
5. Apply the parking brake.
Steering wheel lock The steering wheel is automatically
locked when the key is removed.9 Danger
Never remove the key from
ignition switch during driving as
this will cause steering wheel lock.
Driving and operating135Power button
Electronic key must be inside the
vehicle.
Accessory power mode
Press Engine Start/Stop once without
operating clutch or brake pedal. The yellow LED in the button illuminates.
Steering wheel lock is released and
some electrical functions are
operable, ignition is off.Ignition on power mode
Press and hold Engine Start/Stop for
six seconds without operating clutch
or brake pedal. The green LED in the button illuminates, diesel engine ispreheating. Control indicators
illuminate and most electrical
functions are operable.Engine start
Operate clutch pedal (manual
transmission), the brake pedal and
press Engine Start/Stop once more.
Release button after starting
procedure begins.Ignition off
Press Engine Start/Stop briefly in
each mode or when engine is running and vehicle is stationary. Some
functions remain active until driver's
door is opened, provided the ignition
was on previously.Emergency shut off during driving
Press Engine Start/Stop for longer
than two seconds or press twice
briefly within five seconds 3 136.Steering wheel lock
The steering wheel lock activates
automatically when:
● The vehicle is stationary.
● The ignition has been switched off.
● The driver's door is opened.
To release steering wheel lock, open
and close driver's door and switch on accessory mode or start the engine
directly.9 Warning
If the vehicle battery is discharged,
the vehicle must not be towed,
tow-started or jump-started as the
steering wheel lock cannot be
disengaged.
Operation on vehicles with
electronic key system in case of
failure
If either the electronic key fails or the
battery of the electronic key is weak,
the Driver Information Centre may
136Driving and operatingdisplay No Remote Detected or
Replace Battery in Remote Key when
you try to start the vehicle.
1. Place the electronic key in the front cupholder of the centreconsole. Place the electronic key
solely centred in the transmitter
area in longitudinal direction flat
with buttons upside as shown in
the illustration.
2. With the vehicle in P (Park) or N
(Neutral), operate the brake pedal
and press Engine Start/Stop .
Replace the transmitter battery as
soon as possible.
Retained power off
The following electronic systems can
work up to ten minutes after the
engine is turned off
● Power windows
● Sunroof
● Audio system
The power windows and sunroof will
continue to work for up to ten minutes or until any door is opened. The radio
will work in ignition on power mode
and accessory power mode. Once
the ignition is turned off, the radio will
continue to work for ten minutes, or
until the driver's door is opened.Starting the engine
Vehicles with ignition switch
Turn key to position 1 to release the
steering wheel lock.
Manual transmission: depress clutch and brake pedal.
Automatic transmission: depress
brake pedal and move the selector
lever to P or N.
Do not depress the accelerator pedal. Diesel engine: turn the key to position2 for preheating and wait until control
indicator ! extinguishes.
Driving and operating137Turn the key briefly to position 3 and
release: an automatic procedure
operates the starter with a short delay
as long as the engine is running, see
'Automatic Starter Control'.
Manual transmission: during an
Autostop, the engine can be restarted
by depressing the clutch pedal
3 138.
Automatic transmission: during an
Autostop, the engine can be restarted
by releasing the brake pedal 3 138.
Vehicles with power button
Manual transmission: operate clutch
and brake pedal.
Automatic transmission: operate
brake pedal and move selector lever
to P or N.
Do not operate accelerator pedal.
Press and release Engine Start/Stop:
an automatic procedure operates the
starter with a short delay until the
engine is running, see 'Automatic
Starter Control'.
Before restarting or to switch off the
engine when vehicle is stationary, press Engine Start/Stop once more
briefly.
To start the engine during an
Autostop:
● Manual transmission: during an Autostop, the engine can be
started by depressing the clutch
pedal 3 138.
● Automatic transmission: during an Autostop, the engine can be
started by releasing the brake
pedal 3 138.Key lock release
Some vehicles with an automatic
transmission are equipped with an
electronic key lock release system.
The key lock release is designed to
prevent ignition key removal unless
the selector lever is in P.
Starting the vehicle at low
temperatures
Starting 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.
With temperatures below -30 °C, the
automatic transmission requires a
warming phase of approx.
five minutes. The selector lever must
be in position P.
Automatic Starter Control
This function controls the engine
starting procedure. The driver does
not need to hold the key in position 3
or to hold Engine Start/Stop pressed.
Once applied, the system will go on
138Driving and operatingstarting automatically until the engine
is running. Because of the checking
procedure, the engine starts running
after a short delay.
Possible reasons for a non-starting
engine:
● Clutch pedal not depressed (manual transmission).
● Brake pedal not depressed or selector lever not in P or N
(automatic transmission).
● Timeout occurred
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.
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 pedal 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 the 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 battery sensor ensures
that an Autostop is only performed if
the 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 Ï.
Deactivation is indicated when the
LED in the button extinguishes.
Autostop If the vehicle is at a low speed or at a
standstill, activate an Autostop as
follows:
● Depress the clutch pedal.
● Move the selector lever to neutral.
● Release the clutch pedal.
Driving and operating139The engine will be switched off whilethe ignition stays on.
An Autostop is indicated by the
needle at the AUTOSTOP position in
the tachometer.
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:
● 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 engine exhaust temperature is not too high, e.g. after driving
with high engine load.
● The ambient temperature is above -5 °C.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
● The self-cleaning function of the exhaust filter is not active.
● The vehicle was driven at least at
walking speed since the last
Autostop.
Otherwise an Autostop will be
inhibited.
Certain settings of the climate control
system may inhibit an Autostop.
Climate control 3 127.Immediately after motorway driving
an Autostop may be inhibited.
New vehicle running-in 3 133.
Vehicle battery discharge protection To ensure reliable engine restarts,
several battery discharge protection
features are implemented as part of
the stop-start system.
Power saving measures
During an Autostop, several electrical
features such as auxiliary electric
heater or rear window heating are
disabled or switched into a power
saving mode. The fan speed of the
climate control system is reduced to
save power.
Restart of the engine by the driver Depress the clutch pedal to restart the
engine.
The engine start is indicated by the
needle at the idle speed position in
the tachometer.
If the selector lever is shifted out of
neutral before depressing the clutch
first, - with a message is shown in
the Driver Information Centre.