Page 41 of 399
38 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Central locking switch
1Locking
2UnlockingThe central locking switch is located in the center 
console.
The doors and trunk can only be locked with the central 
locking switch, if both doors are closed.
If the vehicle was previously locked with the central 
locking switch, while in the selective remote control 
mode, only the door opened from the inside is unlocked.
If the vehicle was previously locked with the central 
locking switch, while in the global remote control mode, 
the complete vehicle is unlocked when a door is opened 
from the inside.
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        Page 42 of 399
39 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Notes:
If the vehicle was previously locked with the remote 
control, the doors and trunk cannot be unlocked with 
the central locking switch.
The fuel filler flap cannot be locked or unlocked with 
the central locking switch.
If the vehicle has previously been locked from the 
outside, opening a door from the inside will trigger the 
alarm. To cancel the alarm, insert the electronic key in 
the starter switch or press buttonŒ or‹ on the 
electronic key.
Wa r n i n g !
When leaving the vehicle always remove the 
electronic key from the starter switch, and lock 
your vehicle. Do not leave children unattended in 
the vehicle, or with access to an unlocked vehicle. 
Unsupervised use of vehicle equipment may cause 
serious personal injury. 
     
        
        Page 43 of 399

40 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Automatic central locking
With the automatic central locking system activated, the 
doors and trunk are locked at vehicle speeds of 
approximately 9 mph (15 km / h) or more. The fuel filler 
flap remains unlocked.
The automatic central locking function can be switched 
on or off in the individual setting menu “VEHICLE” – 
“AUTOMATIC DOOR LOCK”, see page 121.
Notes:
If doors are unlocked with the central locking switch 
after activating the automatic central locking, and 
neither door is opened, then the doors remain unlocked 
even at vehicle speeds of approximately 9 mph
(15 km / h) or more.
If a door is opened from the inside at speeds of 
approximately 9 mph (15 km / h) or less with the 
automatic central locking activated, the door will again 
be automatically locked at speeds of approximately 
9 mph (15 km / h) or more.If a door is opened from the inside, the complete vehicle 
is unlocked, if the vehicle was previously centrally 
unlocked using the remote control.
Important!
When towing the vehicle, or with the vehicle on a 
dynamometer test stand, please, note the following:
With the automatic central locking activated and the 
electronic key in starter switch position 2, the vehicle 
doors will lock if the left front wheel as well as the right 
rear wheel spin at vehicle speeds of approximately 
9 mph (15 km / h) or more.
Emergency unlocking in case of accident
The doors unlock automatically a short time after an 
accident in which an airbag or emergency tensioning 
retractor deploys (this is intended to aid rescue and 
exit). 
     
        
        Page 44 of 399
41 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Trunk
The lock is located next to the recessed handle.
Notes:
In case of a malfunction in the central locking system 
the trunk can be unlocked individually.
The mechanical key does not operate the central locking 
system or antitheft alarm system.
When unlocking the trunk with the mechanical key, the 
exterior lamps will flash and the alarm will sound.
To cancel the alarm, insert the electronic key in the 
starter switch or press buttonŒ or‹ on the 
electronic key.
If the fuel filler flap cannot be opened, see page 354.0Neutral position
1Unlocking – turn mechanical key to position 1, hold 
and pull handle to open
Important!
Do not place mechanical key inside trunk, since trunk is 
locked again when closing the lid if the vehicle has been 
previously centrally locked.
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        Page 45 of 399
42 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Pull handle (arrow) to open the trunk lid.
The trunk lid can only be opened manually if the vehicle 
was previously centrally unlocked.Lower trunk lid using handle (1) and close it with hands 
placed flat on trunk lid. Please remember to keep your 
fingers out of the space between the lid and the vehicle.
Trunk lamp
The trunk lamp will switch off after approximately 
10 minutes if the trunk lid is left open. 
     
        
        Page 46 of 399
43 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Trunk lid emergency release
The emergency release button (1) is located in the trunk 
lid.
Briefly press emergency release button (1).
The trunk unlocks and the trunk lid opens.Important!
The emergency release button (1) does not open the 
trunk lid, if the vehicle battery is discharged or 
disconnected.
Illumination of the emergency release button (1):
The button will blink for 30 minutes after opening the 
trunk.
The button will blink for 60 minutes after closing the 
trunk.
Note:
When pressing the emergency release button (1) and 
the vehicle was centrally locked, the exterior lamps will 
flash and the alarm will sound.
To cancel the alarm, insert the electronic key in the 
starter switch or press buttonŒ or‹ on the 
electronic key.
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        Page 47 of 399
44 Antitheft alarm system
Te ch n i c a l
data Instruments 
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Antitheft alarm system (optional for Canada )
1Indicator lamp in switch located in center consoleThe antitheft alarm is automatically armed or disarmed 
with the remote control by locking or unlocking the 
vehicle.
The antitheft alarm is armed within approximately 
10 seconds after locking the vehicle.
A blinking lamp (1) indicates that the alarm is armed.
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        Page 48 of 399
45 Antitheft alarm system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Operation:
Once the alarm system has been armed, the exterior 
vehicle lamps will flash and an alarm will sound when 
someone:
•opens a door,
•opens the trunk,
•opens the hood,
•attempts to raise the vehicle.
The alarm will last approximately 3 minutes in form of 
flashing exterior lamps. At the same time an alarm will 
sound for 30 seconds. The alarm will stay on even if the 
activating element (a door, for example) is immediately 
closed. If the alarm stays on for more than 20 seconds, 
an emergency call is initiated automatically. See Tele 
Aid on page 228.Notes:
When you unlock the driver’s door with the mechanical 
key, the exterior lamps will flash and the alarm will 
sound. 
To cancel the alarm, insert the electronic key in the 
starter switch or press buttonŒ or‹ on the 
electronic key.