18Keys, doors and windowsCancelling remote start
To cancel remote start, do any of the
following:
● Aim the radio remote control at the vehicle and press and hold
O until the sidelights turn off.
● Turn on the hazard warning flashers.
● Press POWERm on the
instrument panel with the brake
pedal depressed, then press
POWER m again to switch off the
vehicle.
Conditions in which remote start will not work
● An open bonnet.
● Vehicle propulsion system fault conditions.
● High voltage battery fault conditions.
● The selector lever is not in P
(Park).Conditions in which remote start may be cancelled include:
● Vehicle propulsion system or high voltage battery fault
conditions.
● Electric drive unit coolant temperature is too high.
Replacing battery in the electronic key
Replace the battery as soon as the
range reduces.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
1. Press button at the back of the electronic key unit and extract thekey blade from the housing.
Keys, doors and windows192. Insert the key blade for approx.6 mm and turn the key to open thehousing. 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
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
vehicle.
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 notin 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 20.
Electronic key systemEnables a keyless operation of the
following functions:
● central locking system 3 20
● tailgate 3 28
● starting and stopping the vehicle 3 150
The electronic key simply needs to be on the driver's person.
Additionally, the electronic key
includes the functionality of the radio
remote control 3 17.
Handle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
Note
Do not put the electronic key into the
load compartment or in front of the
Info display.
Replacing battery in electronic
key
Replace 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 89.
20Keys, doors and windowsBattery replacement in the electronic
key 3 17.
Electronic key synchronisation
The electronic key synchronises itself automatically during every starting
procedure.
Fault
If the central locking cannot be
operated or the propulsion system
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 20.Memorised settings
Whenever the vehicle is switched off, the following settings are
automatically memorised by the
electronic key:
● automatic climate control
● lighting
● Infotainment system
● central locking system
● comfort settings
The saved settings are automatically
used the next time the vehicle is
switched on with the memorised
electronic key 3 19.
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.
Vehicle personalisation 3 91.
Central locking system
Unlocks and locks doors, load
compartment and charge port door.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.
Note
A short time after unlocking with the
remote control the doors are locked
automatically if no door has been
opened. A precondition is that the
setting is activated in the vehicle
personalisation 3 91.
Keys, doors and windows23Operation with buttons on the
electronic key
The central locking system can also
be operated with the buttons on the
electronic key.
Press ( to unlock.
Press ) to lock.
Press and release ) and then
immediately press and hold O for at
least four seconds to start the
vehicle's heating or air conditioning systems and the heated rear window
from outside the vehicle.
Press 5 to stop charging the vehicle.
Press and hold 5 until the lock of the
charge cable is released.
Remote start 3 20.
Remote control operation 3 20.
Passive locking
Automatic locking 3 25.
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 91.
Central locking buttons Locks or unlocks all doors, the load
compartment and charge port door
via a switch in the driver's door panel.
Press ) to lock.
Press ( to unlock.
Operation with the key in case of
a central locking system fault
In case of a fault, e.g. vehicle battery
or electronic key battery is
discharged, the driver's door can be
locked or unlocked with the
mechanical key.
The lock cylinder in the driver's door
is covered by a cap.
Keys, doors and windows35Child safety system for rear
windows
Press V to deactivate rear door
power windows; the LED illuminates.
To activate, press V again.
Overload
If the windows are repeatedly
operated within short intervals, the
window operation is disabled for
some time.
Initialising the power windows
If the driver's window cannot be
closed automatically (e.g. after
disconnecting the vehicle battery), a
warning message is displayed in the
Driver Information Centre.
Vehicle messages 3 89.
Activate the window electronics as
follows:
1. Close doors.
2. Switch on the vehicle.
3. Push switch until the window is completely open and keep
pushing for additional
two seconds.
4. Pull switch until the window is closed and keep pulling for
additional two seconds.
5. Repeat for each window.Heated rear window
Operated by pressing Ü.
The LED in the button indicates
activation.
Heating works after the vehicle has
been started and is switched off
automatically after a short time.
Sun visors The sun visors can be folded down or
swivelled to the side to prevent
dazzling.
The covers of the mirrors should be
closed when driving.
90Instruments and controlsSome important messages may
appear additionally in the Info display.
Some messages only pop-up for a few seconds.
Warning chimes When starting the propulsion
system 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 with parking brake applied.
● If approaching a vehicle ahead too rapidly.
● 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 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.
Battery voltage When the voltage of the 12 V vehicle
battery is running low, a warning
message will appear in the Driver
Information Centre.
1. Switch off any electrical consumers which are not requiredfor a safe drive, e.g. seat heating,
heated rear window or other main consumers.
2. Charge the 12 V vehicle battery by
driving continuously for a while or
by using a charging device.The warning message will disappear
after the vehicle has been started
twice without a voltage drop.
If the 12 V vehicle battery cannot be
recharged, have the cause of the fault
remedied by a workshop.
Driving and operating149If the vehicle will not start, place the
electronic key in the transmitter
pocket inside the centre console.
Starting and stopping the vehicle 3 150.Switching on the vehicle
With the vehicle off and the brake
pedal applied, pressing POWERm
once will switch on the vehicle. When
4 illuminates in the instrument
cluster, the vehicle is ready to be
driven. This could take up to
15 seconds at extremely cold
temperatures.Switching off the vehicle
With the vehicle in P, press
POWER m briefly in service mode or
when engine is running and vehicle is stationary. Some functions remain
active until driver's door is opened.
If the vehicle is not in P when
switching off the vehicle, P will be
automatically engaged before the
vehicle is switched off.A chime will sound if the driver's door is opened while the vehicle is
switched on. Always press
POWER m to switch off the vehicle
before exiting the vehicle.Emergency shut off during driving
If the vehicle needs to be switched off during driving in case of emergency,
press POWER m for more than
two seconds or press twice briefly
within five seconds.
Starting and stopping the vehicle
3 150.
Service mode
This power mode is available forservice and diagnostics and to verify
the proper operation of the service
vehicle soon control indicator as may
be required for emission inspection
purposes.
With the vehicle switched off and the brake pedal not applied, pressing and
holding POWER m for more than five
seconds will place the vehicle in
service mode. The instruments and
audio systems will operate as they do when the vehicle is switched on, but
the vehicle will not be able to be
driven. The propulsion system will not start in service mode. Press
POWER m again to switch off the
vehicle.Caution
Service mode will discharge the 12
V vehicle battery. Do not use
service mode for an extended
period, or the vehicle may not
start.
Operation in case of failure
If the vehicle does not start due to a
low electronic key battery, a message
will be displayed in the Driver
Information Centre.
To still drive the vehicle, proceed as
follows:
1. Open the centre console and remove the small tray from the
centre console. Place the
electronic key in the pocket with
the buttons facing the bottom of
the vehicle.
150Driving and operatingOther objects, e.g. other keys,
transponder, tags, coins etc. must
be removed.
2. With the vehicle in P or N depress
the brake pedal and press
POWER m.
To switch off the vehicle, press
POWER m again. Remove the
electronic key from the centre
console.
This option is intended for
emergencies only. Replace the
electronic key battery as soon as
possible 3 19.
For unlocking or locking the doors,
see fault in radio remote control unit
or electronic key system 3 20.
Retained power off
The following electronic systems can
work until the driver's door is opened
or for ten minutes after the vehicle is
switched off:
● power windows
● Infotainment system
● power outlets
Starting and stopping the
vehicleMove the selector lever into P or N.
The propulsion system does not start
in any other position.
Note
Do not try to shift into P when the
vehicle is moving, as the electric
drive unit could be damaged. Shift
into P only when the vehicle is
stationary.
The electronic key must be inside the
vehicle. Depress the brake pedal,
then press POWERm.
If the electronic key is not in the
vehicle or something is interfering
with the transmitter, a message is
displayed in the Driver Information
Centre.
A vehicle ready light is displayed in
the lower right corner of the
instrument cluster when the vehicle is ready to be driven.