BMW X3 Service & Repair Manual > Electrical components: Removing and installing/replacing control unit for vertical dynamic control
IMPORTANT:
Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC
DISCHARGE (ESD PROTECTION) .
Necessary preliminary tasks:
Remove ignition key.
Disconnect BATTERY NEGATIVE CABLE .
Remove FLAP IN LUGGAGE COMPARTMENT TRIM PANEL ON RIGHT .
Undo screw (1), release expanding ...