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10Keys, doors and windowsKey with foldaway key section
Press button to extend. To fold the
key, first press the button.
Radio remote control
Enables operation of the following
functions via the use of the remote control buttons:
● central locking system 3 12
● anti-theft locking system 3 18
● anti-theft alarm system 3 19
● tailgate unlocking and opening
● power windows 3 23
● mirrors folding 3 21
● vehicle locator lighting 3 88
● peripheral lighting 3 88
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.
Replacing battery in radio remote
control
Replace the battery as soon as the
system no longer operates properly
or the range is reduced.
In the event of a discharged battery,
C illuminates in the instrument
cluster and a warning message is
displayed in the Driver Information
Centre.
Driver Information Centre 3 76.
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Keys, doors and windows11Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
1. Remove the back cover from the remote control.
2. Extract the flat battery from its location.
3. Replace battery with a battery of the same type. Pay attention to
the installation position.
4. Clip the back cover in place.
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 battery voltage is too low.
● Overload of the central locking system by operating at frequentintervals, the power supply is
interrupted for a short time.
● Interference from higher-power radio waves from other sources.
Manual unlocking 3 12.Electronic key system
Enables, depending on version, a
keyless operation of the following functions:
● central locking system 3 12
● ignition switching on and starting the engine 3 101
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 10.
Handle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
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12Keys, doors and windowsReplacing battery in electronic
key
Replace the battery as soon as the
system no longer operates properly
or the range is reduced.
In the event of a discharged battery,
C illuminates in the instrument
cluster and a warning message is
displayed in the Driver Information
Centre.
Driver Information Centre 3 76.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
1. Remove the cover.
2. Extract the flat battery from its location.
3. Replace battery with a battery of the same type. Pay attention to
the installation position.
4. Clip the cover in place.
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 12.
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.
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14Keys, doors and windowsElectronic key system operationThis system allows automatic vehicle
locking and unlocking simply by
detection of the electronic key. The
electronic key must be outside the
vehicle.
● Zone 1: switching on entry lighting
● Zone 2: automatic locking on leaving the vehicle
● Zone 3: automatic unlocking on approaching the vehicle
Note
A short time after automatic
unlocking, the vehicle is relocked if
no door has been opened.
If the ignition is switched off for more than nine days or the vehicle battery
has no sufficient charging, the
automatic function is disabled. Pass a hand behind the door handle of the
driver's door to unlock the vehicle or
press the tailgate button.
Unlocking
Unlocking mode can be set in the
vehicle personalisation menu in the
Info Display. Two settings are
selectable:
● Only the driver's door and fuel filler flap will be unlocked.
● All doors, load compartment and fuel filler flap will be unlocked.
Vehicle personalisation 3 77.Operation with buttons on the
electronic key
The central locking system can also
be operated with the buttons on the
electronic key.
Press a to unlock.
Press b to lock.
Press ? to unlock only the
tailgate.
Remote control operation 3 12.
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Keys, doors and windows15Confirmation
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 77.
Smart access
With that function a smart phone can
be used as an electronic key. The
vehicle is controlled via an
application.
When approaching the vehicle
confirm the message on the smart
phone to open the vehicle.
Central locking button
Locks or unlocks all doors, the load
compartment and fuel filler flap from
inside the passenger compartment.
Press b to lock. The LED in the
button illuminates.
Press b again to unlock. The LED in
the button extinguishes.
Operation with the key in case of
a central locking system fault
In case of a fault, e.g. vehicle battery
or remote control / electronic key
battery is discharged, the front door
can be locked or unlocked with the
mechanical key.
Manual unlocking
Electronic key: push the latch to
extract the integral key.
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20Keys, doors and windows3. Leave the vehicle and close thedoors.
4. Activate the anti-theft alarm system.
Indication LED in the ! button flashes if the
anti-theft alarm system is activated.
The hazard warning lights illuminates for a few seconds.
Deactivation Unlocking the vehicle with radio
remote control by pressing a or with
the electronic key deactivates the
anti-theft alarm system.
The system is not deactivated by
unlocking the front door with the key
or with the central locking button in
the passenger compartment.
The hazard warning lights flash for a
few seconds.Alarm
When triggered, the alarm siren
sounds and the hazard warning lights flash simultaneously. The number
and duration of alarm signals are
stipulated by legislation.
The anti-theft alarm can be
deactivated by pressing a or
switching on the ignition.
A triggered alarm, which has not been interrupted by the driver, will be
indicated by the LED in the
button !. The LED will flash quickly
the next time the vehicle is unlocked.
If the battery has been reconnected
(e.g. after maintenance work), wait for 10 minutes to restart the engine.
Fault
If the LED in the button !
illuminates permanently when
switching on the ignition, seek the
assistance of a workshop.
Locking the vehicle without
activation of the anti-theft alarm
Lock the vehicle by locking the front
door with the integral key.Immobiliser
The system is part of the ignition
switch and checks whether the
vehicle is allowed to be started with
the key being used.
The immobiliser is activated
automatically.
Note
Radio Frequency Identification
(RFID) tags may cause interference with the key. Do not have it placednear the key when starting the
vehicle.
Note
The immobiliser does not lock the doors. Always lock the vehicle after
leaving it 3 12.
Switch on the anti-theft alarm
system 3 19.
Emergency operation of electronic
key 3 100.
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Keys, doors and windows25Initialising the power windowsIf the windows cannot be closed
automatically (e.g. after
disconnecting the vehicle battery), a
warning message is displayed in the
Driver Information Centre.
Vehicle messages 3 76.
Activate the window electronics as
follows:
1. Close doors.
2. Switch on ignition.
3. Pull the switch until the window is completely opened and keep
pulling for additional 2 seconds.
4. Push the switch as long as the window is completely closed and
keep pushing for additional
2 seconds.
5. Repeat for each window.
Heated rear window
Operated by pressing f together
with heated exterior mirrors.
Heating works with the engine
running and is switched off
automatically after a short time.Depending on climate control system, f is located at a different position.
Vehicles with heating and
ventilation system or air
conditioning systemVehicles with electronic climate
control system
Heated mirrors 3 22.
Sun visors
The sun visors can be folded down or swivelled to the side to prevent
dazzling.
If the sun visors have integral mirrors, the mirror covers should be closed
when driving.
A ticket holder is located on the
backside of the sun visor.
Page 61 of 229
Instruments and controls599Warning
The road surface may already be
icy even though the display
indicates a few degrees above
0 °C.
Clock
Date and time are shown in the InfoDisplay.
The adjustment of date and time is
described in the Infotainment Manual.
Info Display 3 75.
Power outlets
A 12 V power outlet is located in the
centre console.
Do not exceed the maximum power
consumption of 120 W.
With ignition off, the power outlets are
deactivated. Additionally the power
outlets are deactivated in the event of
low vehicle battery voltage.
Electrical accessories that are
connected must comply with the
electromagnetic compatibility
requirements laid down in
DIN VDE 40 839.
Do not connect any current-delivering
accessories, e.g. electrical charging
devices or batteries.
Do not damage the outlet by using
unsuitable plugs.
Stop-start system 3 103.USB ports
A USB port is located in the centre
console.