
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 protectionyf
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 Lockyf
The vehicle may lock itself automatically at speeds of approximately 15 km/h (9 mphyf  D Q G  D E R Y H  
⇒ 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 

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 SAFELOCKyf .
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 doors and the boot lid can be locked or unlocked manually if the vehicle key or central locking 
fails ⇒ Unlocking or locking the driver door manually⇒ Unlocking the boot lid manually.
If the turn signals do not flash as confirmation when you lock the vehicle:
•At least one of the doors or the boot lid is not closed.
•OR: convenience closing is in progress and not all windows have been closed.
Response when locking the vehicle with a second vehicle key
Keyless locking and starting system Keyless Access: Any vehicle key located inside the vehicle will 
be blocked from starting the engine if the vehicle has been locked from the outside using a second 
vehicle key. Press the  button on the vehicle key in the vehicle interior to enable it to start the 
engine ⇒ Starting and stopping the engine.
Automatic switch-off of the sensor surfaces
•The vehicle is not unlocked or locked for an extended period.
•A sensor has been triggered an excessive number of times.
Activating sensors again:
•Wait for a short period of time.
•OR: unlock the vehicle with the  button on the vehicle key.
•OR: the boot lid is opened.
•OR: unlock the vehicle with the vehicle key ⇒ Doors.
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 ⇒.
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.
Doors
 Introduction
This chapter contains information on the followingsubjects:
⇒ Display
⇒ Childproof lock
⇒ Unlocking or locking the driver door manually
⇒ Locking the front passenger door and rear doors manually
If, for example, the vehicle key or central locking fails, the doors, boot lid and tilting and sliding 
panoramic sunroof can be locked and, with some exceptions, unlocked manually.
Please note that the sensors in the door handles can be activated by a powerful jet of 
water or steam if a valid vehicle key is simultaneously within its operating range. If at least 
one window is open and the sensors in a door handle are 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 the door handle sensors briefly and then moved back onto them 
⇒ Locking and unlocking the vehicle with keyless access.
NOTICE
Any door that is not properly closed could open suddenly while the vehicle is in motion. 
This could lead to severe injuries.
•Stop as soon as possible and close the door.
•Ensure that the door is closed properly and that the lock has engaged. The closed door 
must be flush with the surrounding body panels.
•Doors should only be opened or closed when you are sure there is no-one in their path.
WARNING
Any door being held open by the door arrester could close unexpectedly in strong winds 
or if the vehicle is on a slope. This could lead to injuries.
•Always keep a good grip on the handle when opening and closing doors.
WARNING 

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 

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 (yf
⇒ Automatically closing the boot lid (yf
⇒ 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 

One-touch opening and closing
One-touch opening and closing makes it possible to fully open and close the windows. The 
individual buttons do not have to be held down to do this.
One-touch closing: pull the button for the appropriate window up briefly into the second position.
One-touch opening: press the button for the appropriate window down briefly into the second 
position.
Stopping the one-touch function: press or pull the button for the appropriate window again.
Convenience opening and closing
The windows can be opened and closed from outside the vehicle using the vehicle key when the 
ignition is switched off:
•Press and hold the locking or unlocking button on the vehicle key.
•Vehicles with the keyless locking and starting system Keyless Access: place your finger on the 
locking sensor in the door handle for a few seconds until the windows are closed ⇒ Central 
locking system. The vehicle key must also be within the operating range.
•To interrupt the function, release the unlocking or locking button OR take your finger off the 
sensor surface.
A valid vehicle key must be located in the operating range. All turn signals will flash once as 
confirmation that all the windows have been closed.
Adjust the settings for convenience opening using the Infotainment system ⇒ Operation and display 
in the Infotainment system.
One-touch opening and closing and the roll-back function will not work if there is a 
malfunction in the electric windows. Go to a qualified workshop.
Convenience opening and closing works only when one-touch opening and closing is 
activated for all electric windows.
Electric window roll-back function
First read and observe the introductoryinformation and safety warnings⇒
Introduction
The roll-back function for the electric windows can reduce the risk of crush injuries when the 
windows are closing.
If the window is not able to close because it is stiff or because of an obstruction, the window will 
immediately open again ⇒.
•Check to see why the window has not closed.
•Try to close the window again.
•If the window closing process is interrupted again, the roll-back function will be disabled for a 
few seconds.
•If the window still cannot be closed, it will stop at the corresponding position. To close the 
window without the roll-back function, press the button again within a few seconds ⇒.
Careless or unsupervised use of the electric windows can cause serious injuries.
•The electric windows should be opened or closed only when you are sure that nobody 
is in their operating area.
•Never leave children or people requiring assistance alone in the vehicle when the 
vehicle is locked. The windows can no longer be opened in an emergency.
•Always take all vehicle keys with you every time you leave the vehicle. The windows 
can still be operated using the buttons in the doors for a short time after the ignition 
has been switched off, provided that the driver door and front passenger door are not 
opened.
•When transporting children on the rear bench seat, the rear electric windows should 
always be deactivated using the safety button so that they cannot be opened or closed.
WARNING