The tailgate swings back and up when it opens.
Ensure that adequate clearance is available before opening.
Opening from the outside
As the case may be, the doors are also unlocked.
Unlocking with the remote control.
The tailgate is unlocked and can be swung upward.
BMW X3 Service & Repair Manual > Electronic switching or control units: Removing/replacing knock sensors (N55)
Necessary preliminary tasks:
Read out the fault memory of the DME control unit.
Switch off ignition.
Remove INTAKE PLENUM .
Vehicles with the Bosch high pressure pump only :
Remove HIGH PRESSURE PUMP .
Unlock connector (1) and remove.
Feed out connector (1) behind feed line, remove ...