Central locking drives
The following central locking drives are activated by the Body Domain Controller (BDC):
- Doors
- Tailgate
Two motors for the central locking are integrated in each door lock (high-speed motors with flange-mounted gearbox). The Body Domain Controller activates the engines. The engines move the locking mechanism into the following positions:
- Locking: door can still be opened from the inside
All door locks are in the locked condition. The outer door handle is mechanically decoupled from the door lock. The inside door handle is mechanically coupled to the door lock.
- Unlock: door can be opened from the inside and outside
All the door locks are in the unlocked condition. The outer and inside door handles are mechanically coupled to the door lock.
The driver's door lock allows mechanical locking, securing and unlocking of the vehicle. Whenever the vehicle electrical system fails (e.g. flat battery), the driver's door can be operated using the integrated key in the remote key or in the ID transmitter.
Driver's door shown
| Item | Explanation |
|---|---|
| 1 | Locking button with linkage |
| 2 | Bowden cable for the inside door handle |
| 3 | 7 pin plug connection |
| 4 | Door lock (driver's door shown) |
| 5 | Bowden cable for the outer door handle |
The fuel filler flap can be locked and released using the central locking system's fuel filler-flap actuator.
The fuel filler flap's lock can be electrically released and engaged at the operating points (with the remote key or with the integrated key at the door lock).
The central locking button allows the user to engage and release the vehicle's locks from within the passenger compartment. Operation of the central locking button has no effect on the central locking system fuel filler flap actuator. In other words, the fuel filler flap remains unlocked when the central locking button is pressed.
The fuel filler flap's lock is electrically disengaged at the operating points (user controls).
The Body Domain Controller (BDC) briefly activates the direct current motor of the central locking drive and triggers the fuel filler flap to unlock. The fuel filler flap can then be opened.
To lock it, the Body Domain Controller (BDC) briefly activates the direct current motor in the opposite direction. The DC motor's direction of rotation changes.
A linkage rod is installed on the central locking system's actuator. When the fuel filler flap is locked one end of the linkage rod extends into a clamp permanently attached to the filler flap. The fuel filler flap is released when the DC motor retracts the linkage rod.
It is also possible to release the fuel filler flap using the emergency-release function.
| Item | Explanation |
|---|---|
| 1 | Central locking drive, fuel filler flap |
| 2 | two pin plug connection |
| 3 | Fuel filler flap |
| 4 | Linkage |
| 5 | Emergency release |