20Keys, doors and windowsKey with foldaway key section
Press button to extend. To fold the
key, first press the button.
Lock cylinders
Designed to free-wheel if they are forcefully rotated without the correct
key or if the correct key is not fully
inserted. To reset, turn cylinder with
the correct key until its slot is vertical, remove key then re-insert it. If the
cylinder still free-wheels, turn the key
through 180° and repeat operation.
Radio remote control
Enables operation of the following
functions via the use of the remote control buttons:
● central locking system 3 23
● anti-theft locking system 3 29
● anti-theft alarm system 3 29
The radio remote control has a range of approx. 30 m. 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.
Radio remote control battery
replacement
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.
Keys, doors and windows21Extend the key and open the unit.
Replace the battery (battery type CR 2032), paying attention to the
installation position. Close the unit
and synchronise.
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.Electronic key system
Enables a keyless operation of the
following functions:
● central locking system 3 23
● starting the engine 3 136
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 20.
Handle with care, protect from
moisture and high temperatures and
avoid unnecessary operation.
Notice
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 3 102.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
22Keys, doors and windowsTo replace:
1. Press button at the back of theelectronic key unit and extract thekey blade from the housing.
2. Insert the key blade approx. 6 mm
into the housing 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.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
Electronic key synchronisation
The electronic key synchronises itself automatically during every starting
procedure.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 23.
Memorised settings
Whenever the ignition is switched off, the following settings may be
automatically memorised by the
remote control unit or the electronic
key:
26Keys, doors and windowsConfirmation
Operation of central locking system is confirmed by the hazard warning
flashers. A precondition is that the
setting is activated in the vehicle
personalisation 3 103.
Central locking buttons Locks or unlocks all doors, the load
compartment and fuel filler flap from
the passenger compartment via a
switch in the driver's door panel.
Press e to lock.
Press c to unlock.
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 driver's
door can be locked or unlocked with
the mechanical key.
Manual unlocking
Manually unlock the driver's door by
inserting and turning the key in the
lock cylinder.
The other doors can be opened by
pulling the interior handle twice or by
pressing c in the driver's door panel.
The load compartment and fuel filler
flap will possibly not be unlocked.
By switching on the ignition, the anti-
theft locking system is deactivated.
Manual locking
Push inside locking knob of all doors
except driver's door or press e in the
driver's door panel. Then close the driver's door and lock it from the
outside by turning the key in the lock
cylinder. The fuel filler flap and
tailgate are possibly not locked.
Delayed locking
This feature will delay the actual
locking of the doors and arming of the
anti-theft alarm system for
five seconds when the power door
lock switch or radio remote control is
used to lock the vehicle.
This can be changed in the vehicle
settings.
Vehicle personalisation 3 103.
Keys, doors and windows35Initialising the power windowsIf the windows cannot be closed
automatically (e.g. after
disconnecting the vehicle battery),
activate the window electronics as
follows:
1. Close doors.
2. Switch on ignition.
3. Pull switch until the window is closed and keep pulling for
additional two seconds.
4. Repeat for each window.
Heated rear window
Operated by pressing Ü.
The LED in the button indicates
activation.
Heating works with the engine
running 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 sun visors mirror covers should
be closed when driving.
If the sun visors have a vanity mirror
lamp, the lamp will illuminate when
opening the vanity mirror cover.Roof
Sunroof9 Warning
Take care when operating the
sunroof. Risk of injury, particularly to children.
Keep a close eye on the movable parts when operating them.
Ensure that nothing becomes
trapped in them as they move.
Switch on ignition to operate the
sunroof.
102Instruments and controlsVehicle messagesMessages are indicated mainly in the
Driver Information Centre, in some
cases together with a warning chime.
Press SET/CLR on the turn signal
lever to confirm a message.
Vehicle and service messages The vehicle messages are displayed
as text. Follow the instructions given
in the messages.
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 a door, the tailgate or bonnet is
open.
● If seat belt is not fastened.
● If a certain speed is exceeded with parking brake applied.
● If a programmed speed or speed
limit is exceeded.
● If a warning message appears in the Driver Information Centre.
● If approaching a vehicle ahead too closely.
● If the electronic key is not in the passenger compartment.
● If an unintended lane change occurs.● If the parking assist detects an object.
● If the fuel level is low.
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 battery voltage is running
low, a warning message or warning code 174 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 battery by driving continuously for a while or by
using a charging device.
124LightingExit lighting
Low beam, sidelights and tail lights
illuminate the surrounding area for an adjustable time after leaving the
vehicle.
Switching on
Activation, deactivation and duration of lighting of this function can be
changed in the vehicle settings.
Vehicle personalisation 3 103.
1. Switch off ignition.
2. Remove ignition key.
3. Open driver's door.
4. Pull turn signal lever.
5. Close driver's door.
If the driver's door is not closed the
lights switch off after a few seconds.
The lighting is switched off
immediately if the turn signal lever is pulled while the driver's door is open.
Battery discharge protection To prevent discharge of the battery
when the ignition is switched off,
some interior lights are switched off
automatically after some time.
Driving and operating135Emergency shut off during driving
Press Engine Start/Stop for longer
than two seconds or press twice
briefly within five seconds 3 136.
Steering wheel lock The steering wheel lock activates
automatically when:
● The vehicle is stationary.
● The ignition has been switched off.
● The driver's door is opened.
To release steering wheel lock, open
and close driver's door and switch on accessory mode or start the engine
directly.9 Warning
If the vehicle battery is discharged,
the vehicle must not be towed,
tow-started or jump-started as the
steering wheel lock cannot be
disengaged.
Operation on vehicles with
electronic key system in case of
failure
If either the electronic key fails or the
battery of the electronic key is weak,
the Driver Information Centre may
display No Remote Detected or
Replace Battery in Remote Key when
you try to start the vehicle.
1. Place the electronic key in the front cupholder of the centreconsole. Place the electronic key
solely centred in the transmitter
area in longitudinal direction flat
with buttons upside as shown in
the illustration.
2. With the vehicle in P (Park) or N
(Neutral), depress the brake
pedal and press
Engine Start/Stop .
Replace the transmitter battery as
soon as possible.
Retained power off The following electronic systems can
work up to ten minutes after the
engine is turned off
● Power windows
● Sunroof
● Audio system
The power windows and sunroof will
continue to work for up to ten minutes or until any door is opened. The radio
will work in ignition on power mode
and accessory power mode. Once
the ignition is turned off, the radio will
continue to work for ten minutes, or
until the driver's door is opened.