Driving and operating1330: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 5 seconds
3 135. 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.
136Driving and operating● Release button after startingprocedure 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 3 137.
● Automatic transmission: during an Autostop, the engine can be
started by releasing the brake
pedal 3 137.
Emergency shut off during driving If the engine needs to be switched offduring driving in case of emergency,
press Start/Stop for 5 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. 5 minutes.
The selector lever must be in position P .
Heating functionalities
Note
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.
Driving and operating137Stop-start systemThe 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.Indication
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.
138Driving and operating● The engine exhaust temperatureis not too high, e.g. after driving
with high engine load.
● The ambient temperature is not too low or too high.
● 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.
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 3 120.
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 3 132.
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.Restart of the engine by the stop-
start system
The selector lever must be in neutral 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:
● The stop-start system is manually deactivated.
● The driver's seat belt is unfastened or the driver's door is
opened.
● The engine temperature is too low.
● The charging level of the vehicle battery is below a defined level.
● The brake vacuum is not sufficient.
● The climate control system requests an engine start.
● The air conditioning is manually switched on.
If an electrical accessory, e.g. a
portable CD player, is connected to
the power outlet, a brief power drop
during the restart might be noticeable.
Vehicle care225Paintwork 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
Switch off wipers before handling in
their areas.
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 toremove 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.
258Head restraint adjustment .............8
Head restraints ............................ 42
Head-up display............................ 99 Heated mirrors ............................. 35
Heated rear window ..................... 38
Heated steering wheel .................73
Heated windscreen .......................39
Heating ........................................ 46
Heating and ventilation system . 119
High beam ........................... 94, 111
High beam assist ..........................94
Hill start assist ........................... 149
Horn ....................................... 14, 74
I
Identification plate .....................233
Ignition switch positions .............132
Immobiliser .................................. 34
Indicators ...................................... 84
Inductive charging ........................78
Info Display ................................... 97
Instrument cluster ........................80
Instrument panel fuse box .........204
Instrument panel illumination control .................................... 116
Instrument panel overview ........... 10
Interior care ............................... 226
Interior lighting ............................ 116
Interior lights ...................... 116, 202
Interior mirrors .............................. 36Interruption of power supply ......146
Introduction .................................... 3
J Jump starting ............................. 220
K Keys ............................................. 21
Keys, locks ................................... 21
L
Lane departure warning .......91, 175
Lashing eyes ............................... 68
LED headlights ........................... 197
Lighting features .........................117
Light switch ................................ 110
Load compartment ................30, 64
Load compartment cover .............67
Loading information .....................70
Low beam ..................................... 94
Low fuel ....................................... 93
LPG ...................................... 85, 179
M
Malfunction indicator light ............90
Manual anti-dazzle ......................36
Manual mode ............................. 145
Manual transmission .................. 147
Mirror adjustment ........................... 9
Misted light covers .....................115N
New vehicle running-in ..............132
Number plate light .....................202
O
Object detection systems ...........161
Odometer ..................................... 84
Oil, engine .......................... 231, 235
OnStar ........................................ 105
Outside temperature ....................76
Overrun cut-off ........................... 136
P Panoramic view system ..............171
Parking ................................ 19, 139
Parking assist ............................ 161
Parking brake ....................... 91, 148
Parking lights ............................. 115
Particulate filter ........................... 140
Performance .............................. 239
Performing work ........................189
Power button .............................. 133
Power outlets ............................... 77
Power saving mode ....................134
Power windows ............................ 37
Preheating ................................... 92
Puncture ..................................... 216
Q
Quickheat ................................... 127
259RRadio Frequency Identification (RFID) ..................................... 254
Radio remote control ...................22
Rain sensor .................................. 94
REACH ....................................... 248
Reading lights ............................ 116
Rear floor storage cover ..............67
Rear fog light ...............94, 115, 198
Rear seats .................................... 47
Rear view camera ...................... 173
Rear window wiper and washer ..76
Recommended fluids and lubricants ........................ 231, 235
Refuelling ................................... 179
Registered trademarks ...............251
Reversing lights .........................115
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 .......................89
Seat belts ..................................... 48
Seat heating ................................. 46
Seat position ................................ 43Selective catalytic reduction .......141
Selector lever ............................. 144
Service ............................... 129, 228
Service display ............................ 87
Service information ....................228
Service vehicle soon .................... 90
Side airbag system ......................54
Side blind spot alert ..............94, 169
Sidelights .................................... 110
Side turn lights ........................... 201
Software acknowledgement .......248
Software update ......................... 250
Spare wheel ............................... 216
Speed limiter......................... 94, 153
Speedometer ............................... 84
Starting and operating ................132
Starting off ................................... 17
Starting the engine ....................135
Steering ...................................... 132
Steering wheel adjustment ......9, 73
Steering wheel controls ...............73
Stop engine .................................. 90
Stop-start system........................ 137
Storage ......................................... 63
Storage compartments .................63
Sunvisor lights ........................... 117
Sun visors .................................... 40
Symbols ......................................... 4
System check ............................... 90T
Tachometer ................................. 84
Tail lights ................................... 198
Three-point seat belt .................... 49
Tools .......................................... 207
Tow bar....................................... 182
Towing ................................ 182, 222
Towing another vehicle .............223
Towing equipment .....................184
Towing the vehicle .....................222
Trailer coupling ........................... 182
Trailer towing ............................. 183
Transmission ............................... 17
Transmission display .................144
Tread depth ............................... 210
Trip odometer .............................. 84
Turn lights ............................ 88, 114
Tyre chains ................................ 212
Tyre deflation detection system . 209
Tyre designations ......................208
Tyre pressure ............................ 208
Tyre pressures ........................... 244
Tyre repair kit ............................. 212
U Ultrasonic parking assist............. 161
Upholstery .................................. 226
USB port ....................................... 77
Using this manual ..........................3