Keys, doors and windows21Keys, doors and
windowsKeys, locks ................................... 21
Keys .......................................... 21
Radio remote control .................22
Electronic key system ................23
Memorised settings ...................26
Central locking system ..............26
Automatic locking ......................28
Child locks ................................. 29
Doors ........................................... 30
Load compartment ....................30
Vehicle security ............................ 35
Anti-theft locking system ...........35
Anti-theft alarm system ..............35
Immobiliser ................................ 38
Exterior mirrors ............................ 38
Convex shape ........................... 38
Electric adjustment ....................38
Folding mirrors .......................... 39
Heated mirrors ........................... 40
Automatic dimming ....................40
Parking assist ............................ 40Interior mirrors............................. 40
Manual anti-dazzle ....................40
Automatic anti-dazzle ................41
Windows ...................................... 41
Windscreen ............................... 41
Power windows ......................... 41
Heated rear window ..................43
Heated windscreen ....................44
Sun visors .................................. 44
Roof ............................................. 44
Sunroof ...................................... 44Keys, locks
KeysCaution
Do not attach heavy or bulky items to the ignition key.
Replacement keys
The key number is specified on a
detachable tag.
The key number must be quoted
when ordering replacement keys as it
is a component of the immobiliser
system.
Locks 3 273.
Central locking 3 26.
Starting the engine 3 155.
Radio remote control 3 22.
Electronic key 3 23.
The code number of the adapter for
the locking wheel nuts is specified on
a card. It must be quoted when
ordering a replacement adapter.
Wheel changing 3 265.
22Keys, doors and windowsReplacing batteryReplace the battery as soon as the
system no longer operates properly or the range is reduced. The need for
battery replacement is indicated by a
message in the Driver Information
Centre 3 122.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
To replace:
1. Press button at the back of the electronic key unit and extract thekey blade from the housing.
2. Insert the key blade again for approx. 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.
Radio remote control
Keys, doors and windows23Enables operation of the following
functions via the use of the remote control buttons:
● central locking system 3 26
● anti-theft locking system 3 35
● anti-theft alarm system 3 35
● power windows 3 41
● sunroof 3 44
The remote control has a range of up
to 100 m, but may also be much less
due to 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, the cause may be one of the
following:
● Fault in radio remote control.
● 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.
Manual unlocking 3 26.
Electronic key systemEnables a keyless operation of the
following functions:
● central locking system 3 26
● switching on ignition and starting the engine 3 155
The electronic key simply needs to be on the driver's person.
Additionally, the electronic key
includes the functionality of the radio
remote control:
● central locking system
● anti-theft alarm system
● power windows
The hazard warning flashers confirm
operation.
Handle the device with care, protect
from moisture and high temperatures
and avoid unnecessary operation.
Note
Do not put the electronic key in the
load compartment.
26Keys, doors and windowsIf the driver's door is not closed
properly, the central locking system
will not work.
Passive locking
Automatic locking 3 28.
Confirmation
Operation of central locking system is confirmed by the hazard warning
flashers. A precondition is that the
setting is activated in the vehicle
personalisation 3 123.
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 26.
Memorised settings
Whenever the ignition is switched off, some of the following settings are
automatically memorised by the
currently used remote control unit or
the electronic key:
● automatic climate control
● lighting
● Infotainment system
● central locking system
● FlexRide interactive driving system
● comfort settingsThe saved settings are automatically
used the next time the ignition is
switched on with the memorised
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 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 electronic
key.
Power seat 3 51.
Vehicle personalisation 3 123.
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.
36Keys, doors and windows● vehicle inclination, e.g. if it israised
● ignition
Activation All doors must be closed and the
electronic key of the electronic key
system must not remain in the
vehicle. Otherwise the system cannot
be activated.
● Radio remote control: activated 30 seconds after locking the
vehicle by pressing e once.
● Electronic key system: activated 30 seconds after locking the
vehicle by pressing the button on any exterior door handle.
● Radio remote control or electronic key: directly by
pressing e twice within
5 seconds.
● Electronic key system with passive locking enabled: briefly
activated after passive locking
occurs.
Note
Changes to the vehicle interior such
as the use of seat covers, and open
windows or sunroof, could impair the
function of passenger compartment
monitoring.
Activation without monitoring of
passenger compartment and
vehicle inclination
Switch off the monitoring of
passenger compartment and vehicle
inclination when animals are being
left in the vehicle, because of high
volume ultrasonic signals or
movements triggering the alarm. Also switch off when the vehicle is on a
ferry or train.
1. Close tailgate, bonnet, windows and sunroof.
2. Press o. LED in the button o
illuminates for a maximum of
10 minutes.
Keys, doors and windows373. Close doors.
4. Activate the anti-theft alarm system.
Status message is displayed in the
Driver Information Centre.
Status LED
Status LED is integrated in the sensor
on top of the instrument panel.
Status during the first 30 seconds of
anti-theft alarm system activation:
LED illuminates:test, arming delayLED flashes
quickly:doors, tailgate or
bonnet not
completely closed,
or system faultStatus after system is armed:LED flashes
slowly:system is armed
Seek the assistance of a workshop in
the event of faults.
Deactivation
Radio remote control: Unlocking the
vehicle by pressing c deactivates the
anti-theft alarm system.
Electronic key system: Unlocking the
vehicle by pressing the button on any
exterior door handle deactivates the
anti-theft alarm system.
The electronic key must be outside
the vehicle, within a range of approx. 1 m of the relevant door side.
The system is not deactivated by
unlocking the driver's door manually
or with the central locking button in
the passenger compartment.
Alarm
When triggered, the alarm horn
sounds and the hazard warning lights flash simultaneously. The number
and duration of alarm signals are
stipulated by legislation.
The alarm can be deactivated by
pressing c on the key, by pressing the
switch on the door handle or
switching on the ignition.
A triggered alarm, which has not been interrupted by the driver, will be
indicated by the hazard warning
lights. They will flash quickly three
times the next time the vehicle is
unlocked with the remote control or
electronic key. Additionally, a warning
message is displayed in the Driver
Information Centre after switching on
the ignition.
Vehicle messages 3 122.
38Keys, doors and windowsIf the vehicle's battery is to be
disconnected (e.g. for maintenance
work), the alarm siren must be
deactivated as follows: switch the
ignition on then off, then disconnect
the vehicle's battery within
15 seconds.
Immobiliser
The immobiliser is activated
automatically.
If the control indicator d flashes when
the ignition is on, there is a fault in the
system; the engine cannot be started. Switch off the ignition and repeat the
start attempt. Retry with the key in the transmitter pocket. Operation on
vehicles with electronic key system in case of failure 3 153.
If the control indicator d continues
flashing, attempt to start the engine using the spare key.
Seek the assistance of a workshop.Note
Radio Frequency Identification
(RFID) tags may cause interference with the key. Do not have it placed
near the key when starting the
vehicle.
Note
The immobiliser does not lock the
doors. You should always lock the
vehicle after leaving it and switch on
the anti-theft alarm system 3 26,
3 35.
Control indicator d 3 110.Exterior mirrors
Convex shape The shape of the mirror makes
objects appear smaller, which will
affect the ability to estimate
distances.
Side blind spot alert 3 206.
Electric adjustment
Select the relevant exterior mirror by
pushing í for left mirror or ì for right
mirror. LED in button indicates the
selection.
138LightingIllustration shows rear reading light.Sunvisor lights
Illuminates when the cover is opened.Lighting features
Centre console lighting Spotlight incorporated in the interior
lighting comes on when headlights
are switched on.
Entry lighting Welcome lighting
The following lights are switched on
for a short time by unlocking the
vehicle with the radio remote control:
● headlights
● puddle lights in both outside mirrors
● number plate lights
● instrument panel light
● interior lights
Some functions are only operable
when it is dark outside to facilitate
locating the vehicle.
The lighting switches off immediately
when the ignition is switched on.
Starting off 3 18.This function can be activated or
deactivated in the vehicle
personalisation.
Select the relevant setting in Settings
I Vehicle in the Info Display.
Info Display 3 117.
Vehicle personalisation 3 123.
The settings can be saved for the key
being used 3 26.
The following lights will additionally
switch on when the driver's door is
opened:
● illumination of some switches
● Driver Information Centre
● door pocket lights
Exit lighting The following lights will switch on
when the ignition is switched off:
● interior lights
● instrument panel light
● puddle lights in both outside mirrors
They will switch off automatically after
a delay. This function works only in
the dark.