Replacing the Window Regulator on a 2005 Lincoln LS

1. Disconnect negative battery terminal.
2. Remove door panel: pop off trim pieces, remove screws (door pull, armrest, speaker), lift panel off clips.
3. Peel back vapor barrier.
4. Unplug regulator motor connector.
5. Unbolt regulator rails (usually 4–6 bolts) from door frame and window glass.
6. Maneuver old regulator out through largest opening.
7. Install new regulator; bolt to glass and frame.
8. Reconnect motor; test operation before reassembly.
9. Reinstall vapor barrier, door panel, battery.

Lubricate slides with white lithium grease for smooth travel.