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 3 120.
Vehicle personalisation 3 124.
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 3 120.Vehicle personalisation 3 124.
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.
Notice
Always ensure that there is enough
petrol in the tank.
Fuel for natural gas operation 3 220.
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 controlsIlluminates when the engine is
runningCaution
Engine lubrication may be
interrupted. This may result in
damage to the engine and/or
locking of the drive wheels.
1. Depress clutch.
2. Select neutral gear.
3. Move out of the flow of traffic as quickly as possible without
impeding other vehicles.
4. Switch off ignition.
9 Warning
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
3 231.
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 3 220.
Catalytic converter 3 167.
Bleeding the diesel fuel system
3 235.
Immobiliser
d flashes yellow.
Fault in the immobiliser system. The
engine cannot be started.
Exterior light 8 illuminates green.The exterior lights are on 3 134.
High beam C illuminates blue.
Illuminated when high beam is on or
during headlight flash 3 135.
High beam assist f illuminates green.
The high beam assist is activated,
see LED headlights 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.
Instruments and controls117To 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.When the level in the fuel tank is low,
a message appears on the display
and the control indicator Y in the fuel
gauge illuminates.
When the fuel tank must be refuelled
immediately, a warning message
appears and remains on the display.
Additionally, control indicator Y in the
fuel gauge flashes 3 112.
Fuel range, bi-fuel engine
Display of the approximate total fuel
range and for each fuel tank (CNG
and petrol). A low fuel level in either
tank is indicated by Low in the
respective section.
Fuel level, bi-fuel engine
For bi-fuel engines, the Driver
Information Centre displays the fuel level for the fuel type which is
currently not in operation.
Instantaneous Fuel Consumption
Display of the instantaneous
consumption.
On vehicles with bi-fuel engines:
Instantaneous consumption is
indicated for the currently selected
mode, CNG or petrol.
Driving and operating155Driving and
operatingDriving hints ............................... 156
Control of the vehicle ...............156
Steering ................................... 156
Starting and operating ...............156
New vehicle running-in ............156
Ignition switch positions ...........156
Power button ........................... 157
Retained power off ..................159
Starting the engine ..................159
Overrun cut-off ........................ 161
Stop-start system ....................161
Parking .................................... 164
Engine exhaust .......................... 166
Exhaust filter ............................ 166
Catalytic converter ...................167
AdBlue ..................................... 168
Automatic transmission ..............170
Transmission display ...............170
Selector lever .......................... 171
Manual mode ........................... 172
Electronic driving programmes 172
Fault ........................................ 172
Interruption of power supply ....173Manual transmission ..................173
Manual transmission automa‐ ted .............................................. 174
Transmission display ...............174
Selector lever .......................... 175
Manual mode ........................... 176
Electronic driving programmes 176
Fault ........................................ 176
Brakes ........................................ 177
Antilock brake system .............177
Parking brake .......................... 178
Brake assist ............................. 180
Hill start assist ......................... 180
Ride control systems .................180
Traction Control system ..........180
Electronic Stability Control ......181
Sport mode .............................. 182
Driver assistance systems .........183
Cruise control .......................... 183
Speed limiter ........................... 185
Adaptive cruise control ............186
Forward collision alert .............194
Following distance indication ...196
Active emergency braking .......197
Parking assist .......................... 200
Side blind spot alert .................208
Rear view camera ...................209
Traffic sign assistant ................211
Lane keep assist .....................215Fuel............................................ 218
Fuel for petrol engines .............218
Fuel for diesel engines ............219
Fuel for natural gas operation . 220
Refuelling ................................ 220
Trailer hitch ................................ 223
General information .................223
Driving characteristics and towing tips .............................. 223
Trailer towing ........................... 223
Towing equipment ...................224
Trailer stability assist ...............227
220Driving and operatingand may cause engine stalling, poor
starting or damage on the fuel
injection system.
Fuel for natural gasoperation
Natural gas is known as CNG
(Compressed Natural Gas).
Use natural gas with a methane
content of approx. 78 - 99%. L-gas
(low) has approx. 78 - 87% and H-gas (high) has approx. 87 - 99%. Biogas
with the same methane content can
also be used if it has been chemically
prepared and desulphurised.
Only use natural gas or biogas that complies with DIN 51624.
Liquid gas or LPG must not be used.
Refuelling9 Danger
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.
Driving and operating221
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.The fuel filler cap can be retained in
the bracket on the fuel filler flap.
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.
222Driving and operatingNatural 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.
The refuelling procedure must be
completed, 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
3 293.
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.