Page 15 of 289
In brief13Exterior lightingAUTO:automatic light control
switches automatically
between daytime running
light and headlight8:sidelights9:headlights
Automatic light control 3 133.
Fog lights
Press light switch:
>:front fog lightsr:rear fog light
Lighting 3 132.
Headlight flash, high beam and
low beamheadlight flash:pull leverhigh beam:push leverlow beam:push or pull lever
High beam 3 133.
Headlight flash 3 134.
LED headlights 3 136.
High beam assist 3 136.
Turn and lane-change signalslever up:right turn signallever down:left turn signal
Turn and lane-change signals
3 137, Parking lights 3 138.
Page 23 of 289

Keys, doors and windows21Key with foldaway key section
Press button to extend. To fold the
key, first press the button.
Car Pass The Car Pass contains security
related vehicle data and should
therefore be kept in a safe place.
When the vehicle is taken to a
workshop, this vehicle data is needed
in order to perform certain operations.
Radio remote control
Used to operate:
● central locking system
● anti-theft locking system
● anti-theft alarm system
● power windows
The radio remote control has a range of approx. 20 metres. It can be
restricted by external influences. The
hazard warning flashers confirm
operation.
Handle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
Fault
If the central locking system cannot
be operated with the radio remote
control, it may be due to the following:
● The range is exceeded.
● The battery voltage is too low.
● Frequent, repeated operation of the radio remote control while not
in range, which will require re-
synchronisation.
● 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.
Unlocking 3 22.
Basic settings Some settings can be changed in the
Settings menu in the Info-Display.
Vehicle personalisation 3 125.
Radio remote control battery
replacement
Replace the battery as soon as the
range reduces.
Page 24 of 289

22Keys, doors and windows
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
Key with foldaway key section
Extend the key and open the unit.
Replace the battery (battery type CR 2032), paying attention to the
installation position. Close the unit
and synchronise.
Key with fixed key section
Have the battery replaced by a
workshop.
Radio remote control
synchronisation
After replacing the battery, unlock the
door with the key in the driver's door
lock. The radio remote control will be
synchronised when you switch on the
ignition.
Memorised settings Whenever the ignition is switched off,
the following settings are
automatically memorised by the
remote control unit:
● 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
of the remote control unit 3 151.
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
which is used. The status change is
available only after locking and
unlocking the vehicle.
Vehicle personalisation 3 125.
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.
Note
In the event of an accident in which
airbags or belt pretensioners are
deployed, the vehicle is
automatically unlocked.
Page 25 of 289

Keys, doors and windows23Note
A short time after unlocking with the
remote control, the doors are
relocked automatically if no door has
been opened.
Unlocking
Press c.
Two settings are selectable: ● To unlock only the driver's door, load compartment and fuel filler
flap, press c once. To unlock all
doors, press c twice.
● Press c once to unlock all doors,
load compartment and fuel filler
flap.
The setting can be changed in the
Settings menu in the Info-Display.
Vehicle personalisation 3 125.
The setting can be saved for the key
being used. Memorised settings
3 22.
Locking
Close doors, load compartment and
fuel filler flap.
Press e.
If the driver's door is not closed
properly, the central locking system will not work.
Unlocking and opening the
tailgate
Press c when the ignition is off. The
tailgate is released to be unlocked
and opened by pushing the touchpad switch below the handle.
Central locking buttons Locks or unlocks all doors, the load
compartment and fuel filler flap from
the passenger compartment.
Page 61 of 289

Seats, restraints59
The front passenger airbag system
can be deactivated via a key-
operated switch on the passenger side of the instrument panel.
Use the ignition key to choose theposition:OFF *:front passenger airbag is
deactivated and will not
inflate in the event of a
collision. Control indicator
OFF * illuminates
continuously in the centre
console. A child restraint
system can be installed in
accordance with the chart
Child restraint installation
locations 3 63. No adult
person is allowed to occupy
the front passenger seatON V:front passenger airbag is
active. A child restraint
system must not be
installed9 Danger
Risk of fatal injury for a child using
a child restraint system on a seat
with activated front passenger
airbag.
Risk of fatal injury for an adult
person on a seat with deactivated
front passenger airbag.
If the control indicator ON V
illuminates for approx. 60 seconds
after the ignition is switched on, the
front passenger airbag system will
inflate in the event of a collision.
If both control indicators are
illuminated at the same time, there is
a system failure. The status of the
system is not discernible, therefore
no person is allowed to occupy the
front passenger seat. Contact a
workshop immediately.
Change status only when the vehicle
is stopped with the ignition off.
Status remains until the next change.
Page 102 of 289
100Instruments and controlsPull lever. Washer fluid is sprayed
onto the windscreen and the wiper wipes a few times.
Rear window wiper/washer
Press the rocker switch to activate the
rear 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
Settings menu in the Info-Display.
Vehicle personalisation 3 125.
The rear window washer system is
deactivated when the fluid level is too
low.
Outside temperature
Grafic shows R 4.0 IntelliLink display.
Page 110 of 289
108Instruments and controlsThe system must be reset every time
the engine oil is changed to ensure
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
500 km (whichever occurs first).
Service information 3 258.
Control indicators
The control indicators described are
not present in all vehicles. The
description applies to all instrument
versions. Depending on the
equipment, the position of the control indicators may vary. When the
ignition is switched on, most control
indicators will illuminate briefly as a
functionality test.
The control indicator colours mean:red:danger, important reminderyellow:warning, information, faultgreen:confirmation of activationblue:confirmation of activationwhite:confirmation of activation
Page 126 of 289

124Instruments and controlsMessages in the Info-DisplaySome important messages appear
additionally in the Info-Display. Some
messages only pop-up for a few
seconds.
Warning chimes When starting the engine or whilstdriving
Only one warning chime will sound at a time.
The warning chime regarding
unfastened 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 with parking 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 parking assist detects an object.
● If an unintended lane change occurs.
● If reverse gear is engaged and the rear carrier system is
extended.
● If the diesel particle filter has reached the maximum filling
level.
When the vehicle is parked and/or the driver's door is opened
● With exterior lights on.
During an Autostop ● If the driver's door is opened.
● If any condition for an autostart is
not fulfilled.
Battery voltage When the vehicle battery voltage is
running low, a warning message will
appear in the Driver Information
Centre.1. Switch off immediately any electrical consumers which are
not required for a safe ride, e.g.
seat heating, heated rear window or other main consumers.
2. Charge the vehicle battery by driving continuously for a while or
by using a charging device.
The warning message will disappear
after the engine has been started two
times consecutively without a voltage drop.
If the vehicle battery cannot be
recharged, have the cause of the fault
remedied by a workshop.