Keys, doors and windows23
FaultIf the central locking cannot be
operated or the engine cannot be
started, the cause may be one of the
following:
■ Fault in electronic key.
■ Electronic key is out of reception range.
■ The battery voltage is too low.
■ Overload of the central locking system by operating at frequent
intervals; the power supply is
interrupted for a short time.
■ Interference from higher-power radio waves from other sources.
To rectify the cause of the fault,
change the position of the electronic
key.
Manual unlocking 3 23.
Memorised settings Whenever the ignition is switched off, the following settings are
automatically memorised by the
remote control unit or the electronic
key:■ automatic climate control
■ lighting
■ Infotainment system
■ central locking system
■ Sport mode settings
■ comfort settings
The saved settings are automatically used the next time the ignition is
switched on with the memorised key
with remote control unit 3 153 or
electronic key 3 22.
A precondition is that Personalisation
by Driver is activated in the personal
settings of the Info-Display. This must
be set for each remote control unit or
electronic key which is used.
Also memorised are the adjustments
of the driver's seat and exterior
mirrors, independent of the memory
positions 3 50.
Power seat automatically moves into the saved position when unlocking
and opening the driver's door with the
memorised remote control or
electronic key and Auto Memory
Recall in the Info-Display is activated.Vehicle personalisation 3 122.
Central locking system Unlocks and locks doors, load
compartment and fuel filler flap.
A pull on an interior door handle
unlocks the respective door. Pulling
the handle once more opens the door.
Notice
In the event of an accident in which
airbags or belt pretensioners are
deployed, the vehicle is
automatically unlocked.
Notice
A short time after unlocking with the
remote control the doors are locked
automatically if no door has been
opened.
38Keys, doors and windows
This function can be activated or
deactivated in the Vehicle
personalisation.
Select the relevant setting in Settings,
I Vehicle in the Colour-Info-Display.
Colour-Info-Display 3 118.
Vehicle personalisation 3 122.
The settings are automatically stored
for the key being used 3 23.
Heated mirrors
Operated by pressing Ü.
The LED in the button indicates
activation.
Heating works with the engine
running and is switched off
automatically after a short time.
Automatic dimming Dazzling by following vehicles at nightis automatically reduced by dimming
both exterior mirrors.
Parking assist
For mirrors with position memory, the exterior mirror on the passenger side
is automatically aimed at the rear
tyres as a parking aid when reverse
gear is selected, except during trailer
operation.
Position memory 3 50.
Activation or deactivation of this
function can be changed in the menu Settings in the Info-Display. Vehicle
personalisation 3 122.Interior mirrors
Manual anti-dazzle
To reduce dazzle, adjust the lever on the underside of the mirror housing.
90Instruments and controlsRear window wiper/washer
Push the rocker switch to activate therear window wiper:
upper position=continuous
operationlower position=intermittent
operationmiddle position=off
Push lever. Washer fluid is sprayed
onto the rear window and the wiper
wipes a few times.
Do not use if the rear window is
frozen.
Switch off in car washes.
The rear window wiper comes on
automatically when the windscreen
wiper is switched on and reverse gear
is engaged.
Activation or deactivation of this
function can be changed in the menu Settings in the Info-Display.
Vehicle personalisation 3 122.
The rear window washer system is
deactivated when the fluid level is
low.
Outside temperature
A drop in temperature is indicated
immediately and a rise in temperature
after a time delay.
102Instruments and controls
Because of the fuel remaining in the
tank, the top-up quantity may be less
than the specified tank capacity.
Fuel selector
Pressing LPG switches between
petrol and liquid gas operation. The
status LED 1 shows the current
operating mode.
1 off=petrol operation1 illumi‐
nates=liquid gas operation1 flashes=no switching is
possible, one type of
fuel is emptyAs soon as the liquid gas tank is
empty, petrol operation is
automatically engaged until the
ignition is switched off.
After the engine is started, the LED
1 is sometimes off. If LPG is pressed
twice in this situation, the LED 1
starts flashing.
Fuel for liquid gas operation 3 211.
Engine coolant
temperature gauge
Displays the coolant temperature.
50°=engine operating
temperature not yet
reached90°
(central
area)=normal operating
temperature130°=temperature too highCaution
If engine coolant temperature is
too high, stop vehicle, switch off
engine. Danger to engine. Check
coolant level.
Service display
The engine oil life system lets you
know when to change the engine oil
and filter. Based on driving
conditions, the interval at which an
engine oil and filter change will be
indicated can vary considerably.
Instruments and controls103
The remaining oil life duration menu
is displayed in the Driver Information
Centre 3 111.
On Baselevel display select the
Settings Menu by pressing MENU on
the turn signal lever. Turn the adjuster wheel to select the Remaining Oil
Life page.
On Midlevel and Uplevel display
select Info Menu by pressing p on
steering wheel. Press P to select
Remaining Oil Life page.
Remaining oil life duration is indicated
in %.
Reset
On Baselevel display press the
SET/CLR button on turn signal lever
for several seconds to reset. The
ignition must be switched on but
engine not running.
On Midlevel or Uplevel display press
> on steering wheel to open the
subfolder. Select Reset and confirm
by pressing 9 for several seconds.
The ignition must be switched on but
engine not running.
The system must be reset every time
the engine oil is changed to allow
proper functionality. Seek the
assistance of a workshop.
Next service
When the system has calculated that
engine oil life has been diminished,
Change Engine Oil Soon appears in
the Driver Information Centre. Have engine oil and filter changed by a
workshop within one week or
300 miles (whichever occurs first).
Service information 3 271.
Instruments and controls121
■ driver assistance systems
■ cruise control
■ speed limiter
■ adaptive cruise control
■ forward collision alert
■ collision imminent braking system
■ parking assist systems
■ lighting, bulb replacement
■ adaptive forward lighting
■ wiper/washer system
■ doors, windows
■ side blind spot alert
■ traffic sign assistant
■ lane departure warning
■ load compartment, boot lid
■ radio remote control
■ electronic key system
■ keyless starting
■ seat belts
■ airbag systems
■ engine and transmission
■ tyre pressure
■ diesel particle filter■ vehicle battery status
■ selective catalytic reduction, diesel exhaust fluid (DEF), AdBlue
3 161
Messages in the
Colour-Info-Display
Some important messages may
appear additionally in the
Colour-Info-Display. Press the
multifunction knob to confirm a
message. Some messages only pop- up for a few seconds.
Warning chimes When starting the engine or
whilst driving
Only one warning chime will sound at a time.
The warning chime regarding not
fastened seat belts has priority over
any other warning chime.
■ If seat belt is not fastened.
■ If a door or the tailgate is not fully closed when starting off.■ If a certain speed is exceeded withparking brake applied.
■ If adaptive cruise control deactivates automatically.
■ If approaching a vehicle ahead too closely.
■ If a programmed speed or speed limit is exceeded.
■ If a warning message appears in the Driver Information Centre.
■ If the electronic key is not in the passenger compartment.
■ If the parking assist detects an object.
■ If an unintended lane change occurs.
■ If the diesel particle filter has reached the maximum filling level.
■ If AdBlue needs to be refilled.
When the vehicle is parked and/ or the driver's door is opened ■ When the key is in the ignition switch.
■ With exterior lights on.
■ If the trailer hitch is not engaged.
Instruments and controls123
■Voice
■ Display
■ Rear Camera
■ Return to Factory Settings
■ Software Information
■ TouchPad
In the corresponding submenus, the
following settings can be changed:
Time and Date
See 'Clock' 3 91.
Sport Mode
The driver can select the functions which will be activated in Sport mode
3 174.
■ Sport Mode Backlighting : Changes
the instrument illumination colour.
■ Engine Sport Performance :
Accelerator pedal and gear change
characteristics become more
responsive.
■ Sport Steering : Steering support is
reduced.■ Sport Suspension : Damping
becomes harder.
■ All Wheel Drive : Engine torque is
distributed to a greater extent to the rear axle.
Language (Language)
Selection of the desired language.
See Infotainment system manual.
Valet Mode
See Infotainment system manual.
Radio
See Infotainment system manual.
Vehicle ■ Climate and Air Quality
Auto Fan Speed : Modifies the level
of the cabin airflow of the climate control in automatic mode.
Air Conditioning Mode : Controls the
state of the cooling compressor
when the vehicle is started. Last
setting (recommended) or at
vehicle start is either always ON or
always OFF.
Auto Demist : Supports windscreen
dehumidification by automaticallyselecting the necessary settings and automatic air conditioning
mode.
Auto Rear Demist : Activates
automatically the heated rear
window.
■ Collision / Detection Systems
Park Assist : Activates or
deactivates the ultrasonic parking
assist.
Auto Collision Preparation :
Activates or deactivates the
automatic brake functionality of the
vehicle in the event of imminent
collision danger. The following is selectable: the system will take
over brake control, warn by chimes only or is deactivated completely.
Go Notifier : Activates or
deactivates the reminder function
of the adaptive cruise control.
Side Blind Zone Alert : Activates or
deactivates side blind zone alert.
Rear Cross Traffic Alert : Activates
or deactivates rear cross traffic alert.
Lighting129
Dynamic automatic headlight
levelling 3 129.
Headlights when driving
abroad
The asymmetrical headlight beam
extends visibility at the edge of the
road at the passenger side.
However, when driving in countries
where traffic drives on the opposite
side of the road, adjust the headlights
to prevent dazzling of oncoming
traffic.
Vehicles with halogen headlight
system The headlights do not have to be
adjusted.
Vehicles with Xenon headlight system and Adaptive forward
lighting system Headlights can be set to right-hand orleft-hand drive traffic mode in the
vehicle personalisation menu in the
Colour-Info-Display.Select the relevant setting in Settings,
I Vehicle in the Colour-Info-Display.
Colour-Info-Display 3 118.
Vehicle personalisation 3 122.
Every time the ignition is switched on,
control indicator f flashes for approx.
4 seconds as a reminder that right- hand drive traffic mode is selected.
Change back to left-hand drive traffic
mode in the vehicle personalisation
menu as described above. f will not
flash when left-hand drive traffic
mode is selected.
Control indicator f 3 110.
Daytime running lights Daytime running light increases
visibility of the vehicle during daylight.
They are switched on automatically
when ignition is on.
If the vehicle is equipped with
automatic light control function, the
system switches between daytime
running light and low/high beam
automatically depending on thelighting conditions and information
given by the rain sensor system.
Automatic light control 3 127.
Adaptive forward lighting
The Adaptive forward lighting
functions are only available with Bi-
Xenon headlights. Light range, light
distribution and intensity of light are
variably triggered depending on the
light conditions, weather and road
type.
With the light switch in position
AUTO all lighting functions are
available.
The following functions are available
also with light switch in position 9:
■ dynamic curve lighting
■ corner lighting
■ reversing function
■ dynamic automatic headlight levelling