Keys, doors and windows29
After locking, cover the lock cylinder
with the cap: insert the cap with the
lower side in the recesses, swivel and
push the cap until it engages at the
upper side.
Automatic lockingAutomatic locking after driving off
This security feature can be
configured to automatically lock all
doors, load compartment and fuel
filler flap after driving off and
exceeding a certain speed.
When at a standstill after driving, the
vehicle will be unlocked automatically
as soon as the key is removed from
the ignition switch, or with electronic
key system when the ignition is
switched off.
Activation or deactivation of
automatic locking can be set in the
menu Settings I Vehicle in the Info
Display.
Info Display 3 119.
Vehicle personalisation 3 123.
The setting can be saved for the remote control or electronic key being used 3 24.
Automatic relock after unlocking This feature can be configured to
automatically lock all doors, load
compartment and fuel filler flap a
short time after unlocking with the
remote control or electronic key,
provided no door has been opened.
Activation or deactivation of
automatic relock can be set in the
menu Settings I Vehicle in the Info
Display.
Info Display 3 119.Vehicle personalisation 3 123.
The setting can be saved for the
remote control or electronic key being used 3 24.
Passive locking
On vehicles with electronic key
system, this feature locks the vehicle
automatically after several seconds if an electronic key has been
recognised previously inside the
vehicle, all doors have then been
closed and the electronic key does
not remain within the vehicle.
If the electronic key remains in the
vehicle or the ignition is not off,
passive locking will not be permitted.
If there have been two or more
electronic keys in the vehicle and the
ignition was on once, the feature
locks the vehicle if just one electronic
key is taken out of the vehicle.
To prevent passive locking of the
vehicle e.g. when refuelling or if
passengers remain in the vehicle, the system must be disabled.
Instruments and controls105The LED status shows the current
operating mode.LED off:petrol operationLED illu‐
minates:natural gas operationLED
flashes for
approx.
five
seconds:fuel mode transition is
selected but switching
is not possibleLED
flashes:fuel mode transition in
process, flashing stops
if transition is completed
Switching is not possible at high loads (e.g. powerful acceleration, driving at
full throttle).
If the selector switch is operated
several times within a short time, a
switchover inhibitor is activated. The
engine remains in the current
operating mode. The inhibitor
remains active until the ignition is
switched off.
A slight loss of power and torque can
be expected during petrol operation.
You must therefore adapt your driving style, e.g. during overtaking
manoeuvres and high vehicle loads
(e.g. towing loads) accordingly.
The vehicle consumes petrol when
starting the engine and even when in
certain natural gas operating modes. The petrol consumption in natural gas
operating mode can vary depending
on driving behaviour (e.g. high load or
towing). In case of a low fuel level, a
corresponding message is displayed
as a reminder to refuel.
Note
Always ensure that there is enough
petrol in the tank.
Fuel for natural gas operation 3 218.
Forced fuel mode transitionNatural gas tank is running low
As soon as the natural gas tank is
empty, petrol operation is
automatically engaged. Manually
engaging natural gas operation mode is not possible until natural gas
refuelling is detected.
Before the petrol fuel system runs empty, a warning message will be
displayed and cannot be dismissed.Petrol tank is running low while
natural gas is available
If the remaining petrol level in the tank falls below a certain level, natural gas
operation is automatically engaged
provided there is a sufficient natural
gas level in the tank. Manually
engaging petrol operation mode is not
possible.
Before both fuel systems run empty,
a warning message will be displayed
and cannot be dismissed.
Engine coolant temperaturegauge
Displays the coolant temperature.
112Instruments and controls9Warning
When the engine is off,
considerably more force is needed
to brake and steer.
During an Autostop, the brake
servo unit will still be operational.
Do not remove key until vehicle is stationary, otherwise the steeringwheel lock could engage
unexpectedly.
Keep engine turned off and let the
vehicle be towed to a workshop
3 230.
Low fuel Y illuminates or flashes yellow.
Illuminates
Level in fuel tank is too low.
Flashes
Fuel used up. Refuel immediately.
Never run the tank dry.
Refuelling 3 219.
Catalytic converter 3 168.
Bleeding the diesel fuel system
3 234.
Immobiliser
d flashes yellow.
Fault in the immobiliser system. The
engine cannot be started.
Exterior light 8 illuminates green.
The exterior lights are on 3 135.
High beam C illuminates blue.
Illuminated when high beam is on or
during headlight flash 3 138.
High beam assist f illuminates green.
The high beam assist is activated
3 136.
LED headlights f illuminates or flashes yellow.Illuminates
Fault in the system.
Seek the assistance of a workshop.
Flashes
System is switched to symmetrical
low beam.
Control indicator f flashes for approx.
4 seconds after the ignition is
switched on as a reminder for
symmetrical headlight 3 139.
Front fog lights
> illuminates green.
The front fog lights are on 3 142.
Rear fog light
ø illuminates yellow.
The rear fog light is on 3 142.
Cruise control m illuminates white or green.
Illuminates white The system is on.
116Instruments and controlsSome of the displayed functions differ
when the vehicle is being driven or at
a standstill and some functions are
only active when the vehicle is being
driven.
Trip / fuel information menu, ;
or Info
The following list contains all possible
Info Menu pages. Some may not be
available for your particular vehicle.
Depending on the display, some
functions are symbolised.
Turn the adjuster wheel or press Q
or P to select a page:
● Trip odometer 1/2 or A/B
● Average fuel consumption
● Average speed
● Digital speed
● Fuel range
● Instantaneous fuel consumption
● Remaining oil life
● Tyre pressure
● Traffic sign assistant
● Following distance
● Timer● Outside temperature ● AdBlue level
On Midlevel display the pages
Remaining Oil Life, Tyre Pressure,
Traffic Sign Assistant and Following
Distance are displayed in the Vehicle information menu, select ?.
Trip odometer 1/2 or A/B
Trip odometer displays the current
distance since a certain reset.
Trip odometer counts up to a distance
of 9,999 km then restarts at 0.
To reset on Midlevel display, press
SET/CLR for a few seconds.
To reset on Uplevel display, press >
and confirm with 9.
The information of trip odometer page
1/A and 2/B can be reset separately
while the respective display is active.
Average Fuel Consumption
Display of average consumption. The measurement can be reset at any
time and starts with a default value.To reset on Midlevel display, press
SET/CLR for a few seconds, on
Uplevel display, press > and confirm
with 9.
On vehicles with bi-fuel engines:
Average consumption is indicated for
the currently selected mode, CNG or
petrol.
Average speed
Display of average speed. The
measurement can be reset at any
time.
To reset on Midlevel display, press
SET/CLR for a few seconds, on
Uplevel display, press > and confirm
with 9.
Digital speed
Digital display of the instantaneous
speed.
Fuel range
Range is calculated from current fuel
level and current consumption. The
display shows average values.
After refuelling, the range is updated
automatically after a brief delay.
Driving and operating157Driving and
operatingDriving hints ............................... 158
Control of the vehicle ...............158
Steering ................................... 158
Starting and operating ...............158
New vehicle running-in ............158
Ignition switch positions ...........158
Power button ........................... 159
Retained power off ..................161
Starting the engine ..................161
Overrun cut-off ........................ 163
Stop-start system ....................163
Parking .................................... 166
Engine exhaust .......................... 167
Exhaust filter ............................ 167
Catalytic converter ...................168
AdBlue ..................................... 169
Automatic transmission ..............172
Transmission display ...............172
Gear selection ......................... 172
Manual mode ........................... 173
Electronic driving programmes 173
Fault ........................................ 174
Interruption of power supply ....174Manual transmission ..................175
Brakes ........................................ 175
Antilock brake system .............175
Parking brake .......................... 176
Brake assist ............................. 178
Hill start assist ......................... 178
Ride control systems .................178
Traction Control system ..........178
Electronic Stability Control ......179
Sport mode .............................. 181
Driver assistance systems .........181
Cruise control .......................... 181
Speed limiter ........................... 183
Adaptive cruise control ............185
Forward collision alert .............192
Following distance indication ...195
Active emergency braking .......195
Parking assist .......................... 199
Side blind spot alert .................206
Rear view camera ...................208
Traffic sign assistant ................210
Lane keep assist .....................214
Fuel ............................................ 216
Fuel for petrol engines .............216
Fuel for diesel engines ............218
Fuel for natural gas operation . 218
Refuelling ................................ 219Trailer hitch................................ 221
General information .................221
Driving characteristics and towing tips .............................. 222
Trailer towing ........................... 222
Towing equipment ...................223
Trailer stability assist ...............226
Driving and operating219Refuelling9Danger
Before refuelling, switch off
ignition and any external heaters
with combustion chambers.
Follow the operating and safety
instructions of the filling station
when refuelling.
9 Danger
Fuel is flammable and explosive.
No smoking. No naked flames or
sparks.
If you can smell fuel in your
vehicle, have the cause of this
remedied immediately by a
workshop.
A label with symbols at the fuel filler
flap is indicating the allowed fuel
types. In Europe the pump nozzles of the filling stations are marked with
these symbols. Refuel only the
allowed fuel type.
Caution
In case of misfuelling, do not
switch on ignition.
Fuel filler flap is located at right rear
side of the vehicle.
The fuel filler flap can only be opened
if the vehicle is unlocked. Release the
fuel filler flap by pushing the flap.
Petrol and Diesel refuelling To open, turn the cap slowly
anticlockwise.
220Driving and operating
The fuel filler cap can be retained in
the bracket on the fuel filler flap.
Place the nozzle in straight position to the filler neck and press with slight
force to insert.
To refuel, switch on pump nozzle.
After the automatic cut-off, the tank can be topped up by operating the
pump nozzle a maximum of two more
times.
Caution
Wipe off any overflowing fuel
immediately.
To close, turn the fuel filler cap
clockwise until it clicks.
Close the flap and engage.
Misfuel inhibitor9 Warning
Do not try to open the flap of the
fuel filler neck manually on
vehicles with misfuel inhibitor.
Disregarding this could lead to
trapping of the fingers.
The misfuel inhibitor ensures that the flap of the fuel filler neck can only be
opened by using the suitable fuel
nozzle or a funnel for emergency
refilling.
In case of an emergency, refill with a
canister. A funnel must be used to
open the cap of the filler neck.
The funnel may be stowed in the load
compartment or the glovebox.
Place the funnel in straight position to the filler neck and press with slight
force to insert.
After topping-up, clean funnel from
fuel remains and stow it away.
Natural gas refuelling
The fuel filler flap can only be opened
if the vehicle is unlocked. Release the
fuel filler flap by pushing the flap.
9 Warning
Refuel only with a maximum
output pressure of 250 bar. Use
only temperature-compensated
filling stations.
Driving and operating221The refuelling procedure must becompleted, i.e. the filler neck must be
vented.
The capacity of the natural gas tank
depends on outside temperature,
filling pressure, gas composition and
type of refuelling system.
Capacities 3 289.
Close the flap and allow it to engage. Terms for "natural gas vehicles"
abroad:GermanErdgasfahrzeugeEnglishNGVs = Natural Gas Vehi‐
clesFrenchVéhicules au gaz naturel - or - Véhicules GNVItalianMetano auto
Terms for "natural gas" abroad:
GermanErdgasEnglishCNG = Compressed
Natural GasFrenchGNV = Gaz Naturel (pour)
Véhicules - or -
CGN = carburantgaz
naturelItalianMetano (per auto)
Fuel filler cap
Only use genuine fuel filler caps.
Diesel-engined vehicles have special fuel filler caps.
Trailer hitch
General information
Only use towing equipment that has
been approved for your vehicle.
Entrust retrofitting of towing
equipment to a workshop. It may be
necessary to make changes that
affect the cooling system, heat
shields or other equipment.
The bulb outage detection function for
trailer brake light cannot detect a
partial bulb outage. E.g. in case of
four bulbs with a power of 5 W each,
the function only detects light outage
when only a single 5 W bulb remains
or none remain.
Fitting of towing equipment could
cover the opening of the towing eye.
If this is the case use the coupling ball bar for towing. Always keep the
coupling ball bar in the vehicle when
not in use.