1. BCM block (body control unit). M57, M50, M59.
2. Front door switch. Right: B29 (left/right hand drive). Left: B14 (left/right hand drive).
3. Rear side door switch. Right: B42. Left: B19.
3. Rear side door lock drive. Right: D65. Left: D45.
4. Rear door opener drive B46.
5. MZZ ignition lock connector (without smart key).