Keys, doors and windows252. Insert the key blade again forapprox. 6 mm and turn the key to
open the housing. Further
insertion of the key blade can
damage the housing.
3. Remove and replace battery. Use
CR 2032 or equivalent battery.
Pay attention to the installation
position.
4. Close the housing and insert key blade.
Electronic key synchronisation
The electronic key synchronises itself automatically during every startingprocedure.
Fault
If 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 25.
Memorised settings
Whenever the ignition is switched off,
some functions of the following
settings may be automatically
memorised by the remote control unit or the electronic key:
● automatic climate control
● lighting
● Infotainment system
● central locking system
● 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 3 152 or
electronic key 3 23.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. The
status change is available only after
locking and unlocking the vehicle.
The assigned memory position of the
power seat is automatically recalled
when switching on ignition and Auto
Memory Recall is activated in the
Info Display for the memorised
remote control or electronic key.
Power seat 3 52.
Vehicle personalisation 3 124.
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.
66Seats, restraintsUse the ignition key to choose the
position:* OFF:front passenger airbag is
deactivated and will not
inflate in the event of a
collision. Control indicator
* OFF illuminates
continuously in the
overhead console.V ON:front passenger airbag is
active9 Danger
Deactivate passenger airbag only
in combination with the use of a
child restraint system, subject to
the instructions and restrictions in
the table 3 69.
Otherwise, there is a risk of fatal
injury for a person occupying a
seat with a deactivated front
passenger airbag.
If the control indicator 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 the control indicator * illuminates
after the ignition is switched on, the front passenger airbag system is
deactivated. It stays on while the
airbag is deactivated.
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.
Consult a workshop immediately if
neither of the two control indicators
are illuminated.
Change status only when the vehicle is stopped with the ignition off.
Status remains until the next change.
Control indicator for airbag
deactivation 3 109.
96Instruments and controlsWindscreen washer
Pull lever. Washer fluid is sprayed
onto the windscreen and the wiper
wipes a few times.
Washer fluid 3 227.
Rear window wiper and
washer
Rear window wiperOFF:offINT:intermittent operationON:continuous operation
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 3 124.
Rear window washer
Push lever.
Washer fluid is sprayed onto the rear
window and the wiper wipes a few
times.
The rear window washer system is
deactivated when the fluid level is
low.
Washer fluid 3 227.
108Instruments and controlsOn 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 percentage.
ResetOn Midlevel display press SET/CLR
on the indicator lever for several
seconds to reset. The ignition must be
switched on but engine not running.
On 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
A message appears in the Driver
Information Centre, when
maintenance of the vehicle is
required. Have maintenance workcarried out by a workshop within one
week or 500 km, whichever occurs first.
Service information 3 272.
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
See all control indicators on different
instrument clusters 3 101.
Turn lights
O illuminates or flashes green.
Illuminates briefly
The parking lights are switched on.
Flashes
The turn lights or the hazard warning flashers are activated.
Rapid flashing: failure of the turn
lights or associated fuse, failure of the turn lights on the trailer.
Bulb replacement 3 230.
Fuses 3 241.
Turn lights 3 136.
Seat belt reminder Seat belt reminder on front seats
X for driver's seat illuminates or
flashes red in the instrument cluster.
Instruments and controls123
On Uplevel display press 9 on the
steering wheel to confirm a message.
Vehicle and service messages
The vehicle messages are displayed
as text. Follow the instructions given
in the messages.
Messages in the Info Display
Some important messages may
appear additionally in the
Info Display. Some messages only pop-up for a few seconds.
Warning chimes
If several warnings appear at the
same time, only one warning chime
will sound.
When starting the engine or whilst driving
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 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 electronic key is not in the passenger compartment.● If the parking assist detects an object.
● If an unintended lane change occurs.
● If the exhaust filter has reached the maximum filling level.
● If safety function of the power tailgate detects obstacles in the
moving area.
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 Autostop is
not fulfilled.
Battery voltage When the vehicle battery voltage is
running low, a warning message will
appear in the Driver Information
Centre.
124Instruments and controls1. Switch off any electricalconsumers which are not requiredfor a safe drive, 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
twice without a voltage drop.
If the vehicle battery cannot be
recharged, have the cause of the fault
remedied by a workshop.Vehicle personalisation
The vehicle's behaviour can be
personalised by changing the settings in the Info Display.
Some of the personal settings for
different drivers can be memorised individually for each vehicle key.
Memorised settings 3 25.
Depending on vehicle equipment and
country-specific regulations some of
the functions described below may
not be available.
Some functions are only displayed or
active when the engine is running.
Personal settings Multimedia Navi
Press !, select Settings and then
Vehicle on the touchscreen.
In the corresponding submenus the
following settings can be changed:
Vehicle ● Climate & Air Quality
Auto Fan Max Speed : Modifies
the level of the cabin airflow of the climate control in automatic
mode.
Auto Heated Seats :
Automatically activates the seat
heating.
Auto Defog : Supports
windscreen dehumidification by
automatically selecting the
necessary settings and
automatic air conditioning mode.
126Instruments and controlsLeft or Right Hand Traffic :
Changes between lighting for left
or right-hand traffic.
Adaptive Forward Lighting :
Changes the settings of the
functions of the LED headlights.
● Power Door Locks
Unlocked Door Anti Lock Out :
Activates or deactivates the door locking function while a door is
open.
Auto Door Lock : Activates or
deactivates the automatic door
locking function after driving off.
Delayed Door Lock : Activates or
deactivates the delayed door
locking function. This feature
delays the actual locking of the
doors until all doors are closed.
● Remote Lock, Unlock, Start
Remote Unlock Light Feedback :
Activates or deactivates the
hazard warning flasher feedback
whilst unlocking.
Remote Lock Feedback :
Changes what kind of feedback
is given when locking the vehicle.Remote Door Unlock : Changes
the configuration to unlock only
the driver's door or the whole
vehicle whilst unlocking.
Relock Remotely Unlocked
Doors : Activates or deactivates
the automatic relock function
after unlocking without opening
the vehicle.
Remote Window Operation :
Activates or deactivates the operation of power windows with
electronic key.
Passive Door Unlock : Changes
the configuration to unlock only
the driver's door or the whole
vehicle whilst unlocking.
Passive Door Lock : Activates or
deactivates the passive locking
function. This feature locks the
vehicle automatically after
several seconds if all doors have been closed and an electronic
key has been removed from the
vehicle.
Remote Left in Vehicle Alert :
Activates or deactivates the
warning chime when theelectronic key remains in the
vehicle.
Personal settings Multimedia / Multimedia Navi Pro
Press !, then select the % icon.
The Settings menu contains the
following submenus, which can be selected in the upper menu bar:
● System
● Apps
● Vehicle
● Personal
Instruments and controls127System
To change Time/Date, see Clock
3 97.
Select Language to open a list of
available languages for the Info
Display and Driver Information
Center. Select desired language.
Apps
See Infotainment manual.
Vehicle ● Climate and Air Quality
Auto Fan Speed : Modifies the
level of the cabin airflow of the
climate control in automatic
mode.
Auto heated seats : Automatically
activates the seat heating.
Auto Demist : Supports
windscreen dehumidification by
automatically selecting the
necessary settings and
automatic air conditioning mode.
Auto Rear Demist : Automatically
activates heated rear window.● Collision/Detection Systems
Forward Collision System :
Deactivates the system
completely, activates warning
chimes only or warning chimes in combination with automatic
brake functionality.
Front Pedestrian Detection :
Activates warning chimes only or
warning chimes in combination
with automatic brake functionality or deactivates the system
completely.
Adaptive Cruise Go Notifier :
Activates or deactivates the reminder message to drive off
when the adaptive cruise control
holds the vehicle at standstill.
Lane Change Alert : Activates or
deactivates side blind zone alert.
Park Assist : Activates or
deactivates the parking assist.
Activation is selectable with or
without attached trailer coupling.
Rear Cross Traffic Alert :
Activates or deactivates rear cross traffic alert.● Comfort and Convenience
Auto Memory Recall : Changes
the settings to the recall of
memorised settings for power
seat adjustment.
Easy Exit Driver's Seat : Activates
or deactivates easy exit function of the power seat.
Chime Volume : Changes the
volume of warning chimes.
Handsfree Liftgate/Boot Lid
Control : Changes the hands-free
function settings of the power tailgate.
Reverse Tilt Mirror : Changes the
parking assist function of the exterior mirrors.
Auto Mirror Folding : Activates or
deactivates folding of the exterior
mirrors with the remote control.
Personalisation by Driver :
Activates or deactivates the
personalisation function,
depending on which key is being
used.
Rain Sense Wipers : Activates or
deactivates automatic wiping
with rain sensor.