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
Automatic unlocking (Auto Unlock)
All doors and the boot lid are automatically unlocked if one of the following conditions applies:
•The vehicle is at a standstill and the vehicle key has been removed.
•m/k/a995MKIn vehicles with a DSG dual clutch gearbox: the selector lever is in
position P and the ignition has been switched off.
•OR: the vehicle is stationary and the button has been pressed.
•OR: the door release lever has been operated.
•OR: In an accident where the airbags have been triggered ⇒ Locking the vehicle after the
airbag has been triggered.
Automatic unlocking provides access to the vehicle if assistance is required.
Even if single door unlocking has already taken place, the entire vehicle will be unlocked
when the sensors are touched twice. The entire vehicle must be locked.
Locking and unlocking the vehicle from the outside
Fig. 63 Vehicle key: central locking system.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
•Unlock: press the button. Press and hold for convenience opening.
•Lock: press the button. Press and hold for convenience closing.
•Vehicles with the keyless access locking and starting system: touch the sensors ⇒ Locking and
unlocking the vehicle with keyless access. Individual doors or the entire vehicle are unlocked.
•Press the button ⇒ Boot lid. The boot lid is released.
Vehicles with SAFELOCK: press the button once to lock the vehicle using SAFELOCK
⇒ SAFELOCK. Press the button twice to lock the vehicle without SAFELOCK.
Please note: depending on the settings made for the central locking in the Infotainment system
⇒ Operation and display in the Infotainment system, it may be the case that all of the doors and the
boot lid are unlocked only once the button has been pressed twice.
•Locking: all turn signals will flash once as confirmation.
•Unlocking: all turn signals will flash twice as confirmation.
Convenience opening and closing
•See Windows – Functions ⇒ Windows.
Depending on the mirror function selected in the Infotainment system, the exterior mirrors
fold out when the vehicle is unlocked using the button and surround lighting is switched on.
Locking and unlocking the vehicle from the inside
Fig. 64 In the driver door: central locking button.
•Easy Open: open the boot lid by moving a foot underneath the rear bumper ⇒ Boot lid.
•Easy Close: automatically closes the boot lid.
•Lock the vehicle via the sensor.
The vehicle unlocking procedure is confirmed by all the turn signals flashing twice and the locking
procedure by the turn signals flashing once.
If the vehicle is locked and then the doors and boot lid are closed, and the most recently used
vehicle key is located inside the vehicle, it will not immediately lock properly. All turn signals flash
four times.
Unlocking and opening the doors
•Touch the sensor surface ⇒ Fig. 66 on the inside of the driver or front passenger door
handle.
•Open the door.
Closing and locking the doors
•Switch off the ignition.
•Close the driver or front passenger door.
•Touch the sensor ⇒ Fig. 66 on the outside of the driver or front passenger door handle
once.
On vehicles with SAFELOCK: closing and locking doors
•Switch off the ignition.
•Close the driver and front passenger door.
•Locking with SAFELOCK: touch the sensor surface on the outside of the driver or front
passenger door handle once.
•Locking without SAFELOCK: touch the sensor surface on the outside of the driver or front
passenger door handle twice.
Locking and unlocking the boot lid
If the vehicle is locked and a valid vehicle key is located within the operating range ⇒ Fig. 66
of the boot lid, the boot lid automatically unlocks when you open it with the handle button.
The boot lid is locked automatically after it is closed. If the vehicle is completely unlocked, the boot
lid will not lock automatically when closed.
Temporarily deactivating Keyless Access
•Lock the vehicle with the button on the vehicle key.
•Also lock the vehicle using the door sensor within five seconds.
•The keyless locking and starting system Keyless Access is temporarily deactivated.
The vehicle can be unlocked only using the vehicle key.
Keyless Access is reactivated the next time the vehicle is unlocked.
Convenience functions
To use convenience closing for all of the electric windows and the glass roof, hold your finger on
the sensor on the outside of the driver or front passenger door handle for a few seconds until the
windows or the glass roof have closed.
The sensors' functions can be adjusted in the Vehicle settings menu in the Infotainment system
⇒ Operation and display in the Infotainment system.
It may not be possible to lock or unlock the vehicle using keyless access if the 12-volt vehicle
battery or button cell in the vehicle key is weak or discharged. The vehicle can be locked or
unlocked manually ⇒ Unlocking or locking the driver door manually.
The unlock function is deactivated for a few seconds so that you can check that the vehicle
has been locked properly.
If the message Keyless fault appears on the instrument cluster display, there may be a
malfunction in the Keyless Access system. Go to a qualified workshop.
Please note that the sensor surfaces in the door handles could be activated by a powerful
jet of water or steam if a valid vehicle key is in the operating range at the same time. If at
least one window is open and sensor surface in a door handle is continuously activated,
all windows will close. It is possible that all windows will open if the jet of water or steam is
moved away from a door handle sensor surface briefly and then moved back onto it
⇒ Central locking system.
NOTICE
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.
Display
First read and observe the introductoryinformation and safety warnings⇒
Introduction
A symbol in the instrument cluster display ⇒ Driver information indicates if one or more doors are
not closed properly. Do not drive on! Open the relevant door and then close it again.
This symbol is also visible when the ignition is switched off and will go out a few seconds after the
vehicle has been locked when all doors are closed.
The symbol can differ depending on the version of the instrument cluster.
Childproof lock
Fig. 68 Childproof lock: rear left door, rear right door.
First read and observe the introductoryinformation and safety warnings⇒
Introduction
Key to ⇒ Fig. 68:
Child lock is switched off.
Child lock is switched on.
The childproof lock prevents the rear doors being opened from the inside.
When the childproof lock is activated, the door can only be opened from the outside.
The opening/closing paths of the doors and boot lid are potential danger areas where
injury can occur.
•The doors and boot lid should therefore be opened or closed only when you are sure
that nobody is in their path.
WARNING
Careless manual opening and closing of the doors can cause serious injury.
•If the vehicle is locked from the outside, the doors and electric windows cannot be
opened from the inside.
•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.
•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
When carrying out manual opening or closing, remove parts carefully and fit them again
correctly in order to avoid damage to the vehicle.
NOTICE
If the doors are not closed properly, they can open suddenly while the vehicle is in motion.
This can lead to severe injuries.
•Stop as soon as possible and close all doors.
•After closing the doors, always check that they are all properly secured in the lock
carrier.
WARNING
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