IMPORTANT: Aluminum-magnesium materials.
No steel screws/bolts may be used due to the threat of electrochemical corrosion.
A magnesium crankcase requires aluminum screws/bolts exclusively.
Aluminum screws/bolts must be replaced each time they are released .
Aluminum screws/bolts are permitted with and without color coding (blue).
For reliable identification: Aluminum screws/bolts are not magnetic .
Jointing torque and angle of rotation must be observed without fail (risk of damage) .
Necessary preliminary work:
Unlock connector (1) and remove.
Release screws on both knock sensors (1) and remove knock sensors (1).
Installation note:
Replace aluminum screws.
Installation note:
Clean contact surface of knock sensors on engine block.
NOTE: Check stored fault messages.
Clear diagnostic fault entries from fault memory.
BMW X3 Service & Repair Manual > Side panels: Stripping operations - replacing rear side panel, left
NOTE:
Owing to the different engine variants and equipment specifications, not all the
components are taken into consideration.
The following list basically represents the removal sequence.
Disconnect negative battery cable
Remove bumper trim panel
Remove rear bumper guide ...