132Driving and operating0:ignition off: Some functions
remain active until key is
removed or driver's door is
opened, provided the ignition was
on previously1:ignition on power mode: Ignition
is on, diesel engine is preheating. Control indicators illuminate and
most electrical functions are
operable2:engine start: Release key after
after engine has been started
Steering wheel lock
Remove key from ignition switch and
turn steering wheel until it engages.
9 Danger
Never remove the key from
ignition switch during driving as
this will cause steering wheel lock.
Power button
The electronic key must be inside the
vehicle.
Engine start
Operate the clutch pedal (manual
transmission), the brake pedal and
press Start/Stop . Release the button
after starting procedure begins.Ignition on power mode without
starting the engine
Press Start/Stop without operating
clutch or brake pedal. Control
indicators illuminate and most
electrical functions are operable.Engine and ignition off
Press 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 Start/Stop for five seconds
3 134. Steering wheel locks as soon
as vehicle is stationary.
Steering wheel lock
The steering wheel lock activates
automatically when:
● The vehicle is stationary.
● The ignition has been switched off.
To release steering wheel lock, open
and close driver's door and switch the ignition on power mode or start the
engine directly.
Driving and operating135Vehicles with power button
● Manual transmission: operateclutch and brake pedal.
● Automatic transmission: operate brake pedal and move selector
lever to P or N.
● Do not operate accelerator pedal.
● Press Start/Stop button.
● Release button after starting
procedure begins. Diesel engine
starts after control indicator ! for
preheating extinguishes.
● Before restarting or to switch off the engine when vehicle is
stationary, press 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 3 136.
● Automatic transmission: during an Autostop, the engine can be
started by releasing the brake
pedal 3 136.
Emergency shut off during driving If the engine needs to be switched offduring driving in case of emergency,
press Start/Stop for five seconds.9Danger
Switching off the engine during
driving may cause loss of power
support for brake and steering
systems. Assistance systems and
airbag systems are disabled.
Lighting and brake lights will
extinguish. Therefore power down the engine and ignition while
driving only when required in case of emergency.
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.
136Driving and operatingHeating functionalitiesNote
Individual heating functionalities,
such as heated seats or heated
steering wheel, may be temporarily
unavailable in the event of electrical
loading constraints. Functions will
be resumed after some minutes.
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.
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.
DeactivationDeactivate the stop-start system
manually by pressing Ò. The
deactivation is indicated when the
LED in the button illuminates.
AutostopVehicles with manual transmission
An Autostop can be activated 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.Vehicles with automatic transmission If the vehicle is at a standstill with
depressed brake pedal, Autostop is
activated automatically.
The engine will be switched off while the ignition stays on.
The stop-start system will be disabled
on inclines of 12% or more.
Driving and operating137Indication
An Autostop is indicated by control
indicator D.
During an Autostop, the heating 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 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 temperatureis 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 brake vacuum is sufficient.
● The self-cleaning function of the diesel particle filter is not active.
Otherwise an Autostop will be
inhibited.
Note
The Autostop may be inhibited for
several hours after a battery
replacement or reconnection.
Certain settings of the climate control
system may inhibit an Autostop. See
Climate control chapter for more
details 3 119.
If an autostop is temporarily not
available, D flashes green 3 93.
Immediately after driving at a higher
speed an Autostop may be inhibited.
New vehicle running-in 3 131.Vehicle battery discharge protection
To ensure reliable engine restarts,
several vehicle 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 to a power
saving mode. The fan speed of the
climate control system is reduced to
save power.
Restart of the engine by the driver
Vehicles with manual transmissionConventional restart
All engines have conventional restart.
Depress the clutch pedal without
depressing the brake pedal to restart
the engine.
On engines with late restart a
conventional restart is only possible
without depressed brake pedal.
224Vehicle carePaintwork polish with silicone forms a
protective film, making waxing
unnecessary.
Plastic body parts must not be treated with wax or polishing agents.
Windows and windscreen wiper
blades
Use a soft lint-free cloth or chamois
leather together with window cleaner
and insect remover.
When cleaning the rear window from
inside, always wipe in parallel to the
heating element to prevent damage.
For mechanical removal of ice, use a
sharp-edged ice scraper. Press the
scraper firmly against the glass so
that no dirt can get under it and
scratch the glass.
Clean smearing wiper blades with a
soft cloth and window cleaner.
Remove dirt residues from smearing
wiper blades by using a soft cloth and window cleaner. Also make sure to
remove any residues such as wax,
insect residues and similar from the
window.Ice residues, pollution and continuous
wiping on dry windows will damage or even destroy the wiper blades.
Glass panel
Never clean with solvents or abrasive
agents, fuels, aggressive media
(e.g. paint cleaner, acetone-
containing solutions etc.), acidic or
highly alkaline media or abrasive
pads.
Wheels and tyres
Do not use high-pressure jet
cleaners.
Clean rims with a pH-neutral wheel
cleaner.
Rims are painted and can be treated
with the same agents as the body.
Paintwork damageRectify minor paintwork damage with
a touch-up pen before rust forms.
Have more extensive damage or rust
areas repaired by a workshop.Underbody
Some areas of the vehicle underbody
have a PVC undercoating while other
critical areas have a durable
protective wax coating.
After the underbody is washed, check
the underbody and have it waxed if
necessary.
Bitumen / rubber materials could
damage the PVC coating. Have
underbody work carried out by a
workshop.
Before and after winter, wash the
underbody and have the protective
wax coating checked.
Liquid gas system9 Danger
Liquid gas is heavier than air and
can collect in sink points.
Take care when performing work
at the underbody in a pit.
256Headlights................................... 109Head restraint adjustment .............8
Head restraints ............................ 42
Head-up display............................ 98 Heated mirrors ............................. 35
Heated rear window ..................... 38
Heated steering wheel .................73
Heated windscreen .......................39
Heating ........................................ 46
Heating and ventilation system . 118
High beam ........................... 93, 110
High beam assist ..........................93
Hill start assist ........................... 148
Horn ....................................... 14, 74
I
Identification plate .....................230
Ignition switch positions .............131
Immobiliser .................................. 34
Indicators ...................................... 84
Inductive charging ........................78
Info Display ................................... 97
Instrument cluster ........................80
Instrument panel fuse box .........203
Instrument panel illumination .....201
Instrument panel illumination control .................................... 115
Instrument panel overview ........... 10
Interior care ............................... 225
Interior lighting ............................ 115Interior lights ...................... 115, 201
Interior mirrors .............................. 36
Interruption of power supply ......145
Introduction .................................... 3
J Jump starting ............................. 219
K Keys ............................................. 21
Keys, locks ................................... 21
L
Lane departure warning .......91, 174
Lashing eyes ............................... 68
LED headlights ........................... 196
Lighting features .........................116
Light switch ................................ 109
Load compartment ................30, 64
Load compartment cover .............67
Loading information .....................70
Low beam ..................................... 93
Low fuel ....................................... 93
LPG ...................................... 85, 177
M Malfunction indicator light ............90
Manual anti-dazzle ......................36
Manual mode ............................. 144
Manual transmission .................. 146Mirror adjustment ........................... 9
Misted light covers .....................114
N New vehicle running-in ..............131
Number plate light .....................201
O Object detection systems ...........160
Odometer ..................................... 84 Oil, engine .......................... 228, 232
OnStar ........................................ 105
Outside temperature ....................76
Overrun cut-off ........................... 136
P Panoramic view system ..............170
Parking ................................ 19, 138
Parking assist ............................ 160
Parking brake ............................ 148
Parking lights ............................. 114
Particulate filter ........................... 139
Performance .............................. 237
Performing work ........................188
Power button .............................. 132
Power outlets ............................... 77
Power saving mode ....................133
Power windows ............................ 37
Preheating ................................... 92
Puncture ..................................... 215
257QQuickheat ................................... 126
R
Radio Frequency Identification (RFID) ..................................... 252
Radio remote control ...................22
Rain sensor .................................. 93
REACH ....................................... 246
Reading lights ............................ 115
Rear floor storage cover ..............67
Rear fog light ....................... 93, 114
Rear seats .................................... 47
Rear view camera ...................... 172
Rear window wiper and washer ..76
Recommended fluids and lubricants ........................ 228, 232
Refuelling ................................... 178
Registered trademarks ...............248
Reversing lights .........................114
Ride control systems ..................149
Roof .............................................. 40
Roof load ...................................... 70
Roof rack ..................................... 70
S
Safety belts ................................... 48
Seat adjustment ....................... 7, 44
Seat belt ........................................ 8
Seat belt reminder .......................88
Seat belts ..................................... 48Seat heating ................................. 46
Seat position ................................ 43
Selective catalytic reduction .......140
Selector lever ............................. 143
Service ............................... 129, 226
Service display ............................ 87
Service information ....................226
Service vehicle soon .................... 90
Side airbag system ......................54
Side blind spot alert ..............94, 168
Sidelights .................................... 109
Side turn lights ........................... 200
Software acknowledgement .......246
Software update ......................... 248
Spare wheel ............................... 215
Speed limiter......................... 94, 153
Speedometer ............................... 84
Starting and operating ................131
Starting off ................................... 17
Starting the engine ....................134
Steering ...................................... 131
Steering wheel adjustment ......9, 73
Steering wheel controls ...............73
Stop engine .................................. 90
Stop-start system........................ 136
Storage ......................................... 63
Storage compartments .................63
Sunvisor lights ........................... 116
Sun visors .................................... 40Symbols ......................................... 4
System check ............................... 90
T
Tachometer ................................. 84
Tail lights ................................... 196
Three-point seat belt .................... 49
Tools .......................................... 206
Tow bar....................................... 181 Towing ................................ 181, 221
Towing another vehicle .............222
Towing equipment .....................183
Towing the vehicle .....................221
Trailer coupling ........................... 181
Trailer towing ............................. 182
Transmission ............................... 17
Transmission display .................143
Tread depth ............................... 209
Trip odometer .............................. 84
Turn lights ............................ 88, 113
Tyre chains ................................ 211
Tyre deflation detection system . 208
Tyre designations ......................207
Tyre pressure ............................ 207
Tyre pressures ........................... 241
Tyre repair kit ............................. 211
U Ultrasonic parking assist............. 160
Upholstery .................................. 225
Using this manual ..........................3