Vehicle key
Fig. 61 Vehicle key.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Key to ⇒ Fig. 61:
Central locking button: unlock the vehicle.
Unlock only the boot lid.
Central locking button: lock the vehicle.
Fold the key bit in and out.
Indicator lamp.
Indicator lamp
The indicator lamp in the vehicle key flashes when you press a button.
Press the buttons on the key only if the corresponding function is actually needed. Pressing
a button when the function is not required could lead to the vehicle being unlocked unintentionally
or the alarm going off. This also applies even when you are not within the effective range.
Changing the button cell
Swallowing batteries with a diameter of 20 mm, or other button cells, can result in severe
or even fatal injuries within a very short period of time.
•Always keep the vehicle key, key ring with batteries, spare batteries, round cells and
other batteries that are larger than 20 mm out of the reach of children.
•Call for medical help immediately you suspect that someone has swallowed a battery.
DANGER
Careless or unsupervised use of the vehicle key can lead to accidents or injuries.
•Always take all vehicle keys with you every time you leave the vehicle. Children or
unauthorised persons could lock the doors and the boot lid, start the engine or switch
on the ignition and operate electrical equipment such as the electric windows.
•Never leave children or people requiring assistance alone in the vehicle. They could
become trapped in the vehicle in an emergency and may not be able to get themselves
to safety. For example, locked vehicles may be subjected to very high or very low
temperatures depending on the season. This can cause serious injuries and illness or
fatalities, especially among small children.
•Never switch off the ignition while the vehicle is in motion. The steering column lock or
steering lock mechanism may be activated and you will no longer be able to steer the
vehicle.
WARNING
Every electric vehicle key contains electronic components. Protect the key from damage,
moisture and excessive vibration.
NOTICE
Central and manual locking
Introduction
This chapter contains information on the followingsubjects:
⇒ Indicator lamp
⇒ Central locking system
⇒ Locking and unlocking the vehicle from the outside
⇒ Locking and unlocking the vehicle from the inside
⇒ Locking and unlocking the vehicle with
⇒ SAFELOCK
⇒ Anti-theft alarm
⇒ Interior monitoring system and anti-tow alarm
⇒ Locking the vehicle after the airbag has been triggered
⇒ Troubleshooting
The central locking system locks all doors and the boot lid of the vehicle. The vehicle cannot be
locked if the driver door is open.
The vehicle can only be locked if the ignition has been switched off or the driver has switched off
the engine before leaving the vehicle.
Automatic locking (anti-theft protection)
The vehicle will lock itself again automatically after around 45 seconds if one of the following
conditions applies:
•The vehicle was unlocked but not opened.
•The ignition was not switched on.
•The boot lid was not opened.
•The vehicle has been unlocked using the lock cylinder.
•The vehicle was locked with the central locking button in the vehicle interior.
Indicator lamp
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The central locking indicator lamp is located in the driver door ⇒ Driver door.
Vehicle locked: red LED flashes at short intervals for approximately two seconds, and then more
slowly. The indicator lamp does not flash if the vehicle was locked with the central locking button in
the driver door ⇒ Locking and unlocking the vehicle from the inside.
Central locking system
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The central locking system enables you to lock or unlock all the doors, the boot lid and the tank flap
from one point.
Settings for the central locking system can be adjusted in the Infotainment system ⇒ Operation and
display in the Infotainment system.
Automatic locking (Auto Lock)
The vehicle may lock itself automatically at speeds of approximately 15 km/h (9 mph) and above
⇒ Operation and display in the Infotainment system. The indicator lamp in the central locking
button will light up yellow when the vehicle is locked.
Improper use of the central locking system could lead to serious injury.
•The central locking system locks all doors. Locking the vehicle from the inside can
prevent accidental opening of the doors and unauthorised persons from entering the
vehicle. However, locked doors can delay assistance to passengers inside the vehicle
in the event of an accident or emergency.
•Never leave children or people requiring assistance alone in the vehicle. All doors can
be locked from the inside using the central locking button. This may mean that people
lock themselves in the vehicle. People locked in the vehicle may be subjected to very
high or very low temperatures.
•Temperatures inside a locked vehicle may reach extremes of heat or cold, according to
season. This can cause serious injuries and illness or fatalities, especially to small
children.
•Never leave anyone inside a locked vehicle. People in the vehicle could become
trapped in an emergency and may not be able to get themselves to safety.
•Doors and the boot lid should therefore be opened or closed only when you are sure
that nobody is in their path.
WARNING
Fig. 65 In the driver door: release for the boot lid.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Key for ⇒ Fig. 64 and ⇒ Fig. 65:
Unlocks the vehicle.
Locks the vehicle.
Unlock the boot lid.
If the button in the driver door is pressed, only the boot lid opens. All doors remain
locked.
The central locking button will function only if all doors are closed.
If the vehicle has been locked with the vehicle key, the central locking buttons do not work.
Please note the following if the central locking button was used to lock the vehicle from inside:
•The indicator lamp in the button lights up yellow when all doors are closed and locked.
•The anti-theft alarm will not be activated.
•It is not possible to open the doors and the boot lid from the outside.
The doors can be opened from the inside by pulling the door release handle. The indicator lamp
in the button goes out. The unopened doors and boot lid remain locked and cannot be opened from
the outside.
If the driver door is open, it will not be locked.
In vehicles with SAFELOCK: the SAFELOCK mechanism is not activated ⇒ SAFELOCK.
The vehicle automatically unlocks all doors and the boot lid if one of the following conditions applies
⇒ Operation and display in the Infotainment system :
•The button was pressed.
•The vehicle is at a standstill and the vehicle key has been removed.
•A door was opened. Depending on the central locking settings in the Infotainment system
⇒ Operation and display in the Infotainment system.
Locking and unlocking the vehicle with keyless access
Fig. 66 Keyless Access locking and starting system: operating range. Sensor surfaces of the
central locking system.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The keyless locking and starting system Keyless Access enables the vehicle to be locked and
unlocked without active use of the key. For this purpose, a valid vehicle key must be within the
vehicle's range ⇒ Fig. 66. The vehicle or boot lid is unlocked or locked by touching the sensor
surfaces on the front door handles or pressing the button in the boot lid ⇒ Boot lid⇒.
General notes
•Unlocking the vehicle using the sensor on the driver or front passenger door or the button on
the boot lid.
•Lock the vehicle by means of the sensor surface on the driver or front passenger door.
•Keyless comfort start function: press the starter button to start the engine ⇒ Starting and
stopping the engine. A valid vehicle key must be located in the vehicle interior.
Depending on the mirror function set in the Infotainment system, the exterior mirrors fold out
when the vehicle is unlocked using the sensor on the door handle of the driver of passenger door
and surround lighting is switched on.
If there is no valid vehicle key in the vehicle or if it is not detected, a corresponding display
will be shown on the instrument cluster display. This may occur if the vehicle key is obstructed by
another radio signal or is covered by another item, e.g. a mobile telephone accessory or an
aluminium suitcase ⇒ Starting and stopping the engine.
The sensors may have limited functionality if they become very dirty.
If the vehicle has a DSG dual clutch gearbox, it can be locked only if the selector lever is in
position P.
The entire vehicle will be unlocked if the sensor is touched twice, even if a single door has
already been unlocked.
SAFELOCK
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Depending on the vehicle equipment, the vehicle may have an anti-theft alarm and SAFELOCK
⇒ Anti-theft alarm.
The SAFELOCK deactivates the door release levers if the vehicle has been locked. This makes it
more difficult to break into the vehicle. The doors can no longer be opened from the inside ⇒.
•Press the button on the vehicle key once⇒ Central locking system.
•Press the button on the vehicle key twice in quick succession ⇒ Central locking system.
•Vehicles with the keyless locking and starting system Keyless Access: touch the sensor on the
outside of the door handle twice⇒ Locking and unlocking the vehicle with keyless access.
•Press the central locking button in the driver door once ⇒ Central locking system.
Depending on the vehicle equipment level, there may be an indication of the activated SAFELOCK
in the display of the instrument cluster (Check SAFELOCK! or SAFELOCK).
Deactivating SAFELOCK
The SAFELOCK can be deactivated in one of the following ways:
•Switch on the ignition.
•OR: deactivate interior monitoring and the anti-tow alarm.
Depending on the vehicle equipment, temporarily deactivate interior monitoring and the anti-tow
alarm using the Infotainment system ⇒ Operation and display in the Infotainment system before
locking the vehicle.
The following applies when SAFELOCK is deactivated:
•The vehicle can be unlocked and opened from the inside using the door release lever.
•The anti-theft alarm ⇒ Anti-theft alarm is active.
Depending on the equipment, the interior monitoring and anti-tow alarm will be activated or
deactivated via the Infotainment system ⇒ Operation and display in the Infotainment system.
Anti-theft alarm
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Depending on the vehicle equipment level, the vehicle may have an anti-theft alarm and
SAFELOCK ⇒ SAFELOCK.
Always take care when using the SAFELOCK as you could cause serious injuries.
•Never leave anybody in the vehicle if the vehicle has been locked using the vehicle key.
The doors can no longer be opened from the inside once the SAFELOCK is activated.
•Locked doors make it more difficult for emergency service personnel to gain access to
the vehicle and provide assistance when needed. In an emergency, people locked
inside the vehicle would not be able to leave the vehicle by unlocking the doors.
WARNING
The anti-theft alarm is activated automatically when the vehicle is locked using the vehicle key.
When does the system trigger an alarm?
The anti-theft alarm issues acoustic and visual alarm signals for up to five minutes if any of the
following unauthorised actions are performed while the vehicle is locked:
•A door that was unlocked mechanically with the vehicle key is opened.
•A door is opened.
•The bonnet is opened.
•The boot lid is opened.
•Switch on the ignition using an invalid vehicle key.
•If the 12-volt vehicle battery is disconnected.
•Movement inside the vehicle (in vehicles with interior monitoring ⇒ Interior monitoring system
and anti-tow alarm).
•The vehicle is towed (in vehicles with anti-tow alarm ⇒ Interior monitoring system and anti-tow
alarm).
•The vehicle is lifted (in vehicles with anti-tow alarm ⇒ Interior monitoring system and anti-tow
alarm).
•The vehicle is transported on a car ferry or by rail (in vehicles with anti-tow alarm or interior
monitoring ⇒ Interior monitoring system and anti-tow alarm).
•A trailer that is connected to the anti-theft alarm system is removed ⇒ Trailer towing.
Switching off the alarm
•Unlock the vehicle using the unlocking button on the vehicle key.
•OR: switch on the ignition using a valid vehicle key. A short alarm lasting around one second
may sound.
•In vehicles with keyless access, the alarm can also be switched off by gripping the door handle
⇒ Locking and unlocking the vehicle with keyless access.
The alarm will be triggered again if a person gains access to the same or a different secured
zone after the alarm has been switched off.
The anti-theft alarm will not be activated if the vehicle is locked from the inside using the
central locking button .
If you unlock the driver door mechanically using the vehicle key, only the driver door is
unlocked, and not the whole vehicle. The SAFELOCK mechanism on all doors is not deactivated
and the central locking button is not activated until you switch on the ignition (however the doors will
not be unlocked).
The anti-theft alarm will not function correctly if the 12-volt vehicle battery is weak or
discharged.
Interior monitoring system and anti-tow alarm
Fig. 67 In the roof console: sensors for the interior monitoring system (arrows).
First read and observe the introductoryinformation and safety warnings⇒
Introduction
If movements are detected in the vehicle interior when the vehicle is locked, the interior monitoring
system triggers an alarm ⇒ Fig. 67.
The anti-tow alarm will be triggered if the vehicle is lifted.
Switching on the interior monitoring system and anti-tow alarm
Close the stowage compartments in the roof console, otherwise correct functioning of the interior
monitoring system cannot be fully guaranteed.
Lock the vehicle. When the anti-theft alarm is switched on, interior monitoring and the anti-tow
alarm are also active.
Temporarily switching off the interior monitoring system and anti-tow
alarm
Depending on the vehicle equipment, the interior monitoring system and anti-tow alarm can be
switched off temporarily by means of the button or the Infotainment system ⇒ Operation
and display in the Infotainment system.
•Switch off the ignition and open the driver door.
•Press the button. A yellow indicator lamp in the button lights up.
•Close all doors and the boot lid.
•Lock the vehicle using the vehicle key.
Press the button again before locking the vehicle to reactivate interior monitoring and the
anti-tow alarm.
•Switch on the ignition.
•Deactivate interior monitoring and the anti-tow alarm in the Infotainment system ⇒ Operation
and display in the Infotainment system.
•Close all doors and the boot lid.
•Lock the vehicle using the vehicle key.
The interior monitoring system and anti-towing alarm are deactivated until the next time the vehicle
is locked.
We recommend deactivating interior monitoring and the anti-tow alarm in the following situations:
•If any people or animals are to remain inside the vehicle.
•If the vehicle is to be loaded onto another vehicle.
•If the vehicle is being transported.
•If the vehicle is going to be towed with one axle off the ground.
•If the vehicle is to be parked in a two-storey garage.
•If the vehicle is to be parked in a car wash.
Risk of false interior monitoring alarms
The interior monitoring system functions only when the vehicle is completely closed. Comply with
legal regulations. A false alarm can be triggered in the following situations:
•If one or more windows or the glass roof are fully or partially open.
•If lightweight items such as loose pieces of paper or items hung from the interior mirror are left
in the vehicle.
•If a mobile telephone that is left in the vehicle vibrates.
•If the vehicle is being transported.
•If the vehicle is being parked in a two-storey garage.
•If the vehicle is in a car wash.
Permanent deactivation of interior monitoring and the anti-tow alarm is not possible.
If doors or the boot lid are still open when the anti-theft alarm is activated, only the anti-theft
alarm is activated. Interior monitoring and the anti-tow alarm are not activated until all doors and the
boot lid are closed.
SAFELOCK is also deactivated when the interior monitoring system and anti-tow alarm are
switched off ⇒ SAFELOCK.
Locking the vehicle after the airbag has been triggered
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The entire vehicle is unlocked if the airbags are activated during an accident. Depending on the
extent of the damage, the vehicle can be locked as follows after an accident:
•Switch the ignition off and then back on again.
Troubleshooting
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Fault in locking system: red LED flashes at short intervals and then lights up continuously. Go to a
qualified workshop.
Switching the child lock on and off
•Unlock the vehicle and open the appropriate rear door.
•Move the slot to the corresponding position.
Unlocking or locking the driver door manually
Fig. 69 Driver door handle: concealed lock cylinder
Fig. 70 Driver door handle: lever off cap.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
If locked manually, all doors are locked. If unlocked manually, only the driver door is unlocked.
Observe information on the anti-theft alarm ⇒ Central locking system.
•Pull on the door release lever until the cap is removed.
•Position the key bit on the notch in the driver door handle from below.
•Hold your index finger under the key bit .
•Lift the cap off with the vehicle key in the direction of the arrow ⇒ Fig. 70.
•Insert the key bit into the lock cylinder and lock or unlock the vehicle.
•Pull the door release lever and put the cap back in position.
Things to note when unlocking manually:
•The anti-theft alarm stays active when the vehicle is unlocked. However, the alarm will not be
triggered ⇒ Central locking system.
•The alarm will be triggered when the driver door is opened ⇒ Central locking system.
•The vehicle must be started manually once unlocked ⇒ Starting and stopping the engine.
•When the ignition is switched on, the electronic immobiliser detects a valid vehicle key and
deactivates the anti-theft alarm system.
The anti-theft alarm is not activated when the vehicle is locked manually using the key bit
⇒ Central locking system.
Locking the front passenger door and rear doors manually
First read and observe the introductoryinformation and safety warnings⇒
Introduction
When the childproof lock is activated, the door cannot be opened from the inside.
•Never leave children or people requiring assistance alone in the vehicle when the
doors are locked. This may mean that these people lock themselves in the vehicle.
They could become trapped in the vehicle in an emergency and may not be able to get
themselves to safety. People locked in the vehicle may be subjected to very high or
very low temperatures.
•Temperatures inside a locked vehicle may reach extremes of heat or cold, according to
season. This can cause serious injuries and illness or fatalities, especially to small
children.
WARNING
The front passenger door and the rear doors can be locked manually. This does not activate the
anti-theft alarm.
•Open the door.
•Remove the rubber seal from the end face of the door.
•Insert the key bit into the slot and turn.
•Secure the rubber seal again.
•Ensure that the door is locked.
•The vehicle should be checked by a qualified workshop as soon as possible.
The manually locked door is unlocked again when the vehicle is unlocked or the door is opened
from the inside.
The doors can be unlocked and opened from the inside by pulling the door release handle.
Boot lid
Introduction
This chapter contains information on the followingsubjects:
⇒ Opening and closing the boot lid
⇒ Electrically opening and closing the boot lid
⇒ Boot lid with movement sensor ()
⇒ Automatically closing the boot lid ()
⇒ Unlocking the boot lid manually
⇒ Troubleshooting
The boot lid is unlocked and locked together with the doors.
On vehicles with the keyless locking and starting system Keyless Access, the boot lid is unlocked
automatically when it is opened ⇒ Locking and unlocking the vehicle with keyless access.
Incorrect and unsupervised unlocking, opening or closing of the boot lid can cause
accidents and serious injuries.
•The boot lid should only be opened or closed when you are sure that nobody is in its
path.
•Always check that the boot lid is properly closed after closing it. The closed boot lid
must be flush with the surrounding body panels.
•Always keep the boot lid closed while the vehicle is in motion.
•Never open the boot lid when loads, e.g. bicycles, are attached to it. The boot lid may
close under its own weight due to the additional load. Support the boot lid as
necessary or remove the load before opening.
•Close and lock the boot lid and all vehicle doors when the vehicle is not in use. Ensure
that no one remains in the vehicle.
•Never leave children playing unattended in or around the vehicle, especially when the
boot lid is open. Children could climb into the luggage compartment and shut the boot
lid, thereby trapping themselves inside. Temperatures inside a locked vehicle may
reach extremes of heat or cold, according to season. This can cause serious injuries
and illness or fatalities, especially to small children.
WARNING
Serious injuries could occur if the boot lid is unlocked or opened incorrectly or without
due care and attention.
•The boot lid may not always be detected as being unlocked if there is a carrier and
items attached to it. The boot lid may open suddenly while the vehicle is in motion if it
is unlocked.
WARNING
If there is a large amount of snow or a heavy load on the boot lid, the boot lid may lower
by itself and cause serious injuries due to the additional weight.
•Never open the boot lid if it is covered by a large amount of snow or a load is attached
to it, e.g. a rack or luggage carrier.
•Remove the snow or luggage before opening the boot lid.
WARNING