Doors
Door Components
Section titled “Door Components”- Door shell (steel)
- Door panel (interior trim)
- Window regulator and motor
- Door lock actuator
- Side mirror mounting
- Speaker mounting
- Vapor barrier (moisture protection)
- Wiring harness (through door boot)
Common Issues
Section titled “Common Issues”- Window regulator failure (see Common Problems)
- Door lock actuator failure
- Door boot wiring breakage (pinched wires)
- Sagging door (worn hinge pins)
Door Hinge Repair
Section titled “Door Hinge Repair”Sagging doors are caused by worn hinge pins. BMW recommends replacing the entire hinge, but hinge pin kits are available for repair.