52 14 050 Replacing Lumbar Cushion on Front Left or Right Seat

52 14 050 Replacing Lumbar Cushion On Front Left Or Right Seat

Special tools required:







Necessary preliminary tasks:
- Remove rear panel on front seat backrest







Detach backrest cover (1) at bottom from backrest frame.
Remove valve housing.
Disconnect air hoses (2) from valve housing.

NOTE:
- Heat air hoses gently if they are firmly seated on valve housing.
- Housing of valve block must not be unclipped (leakage). If necessary, release mounting and clip housing together.
- If necessary, cut all retainers on lumbar cushion (3) and spring wire.
- Remove all remnants of retainers. Bend new retainers to shape with special tool 52 0 050 .
- Detach lumbar cushion (3) from spring wire.
- Remove lumbar cushion (3) downwards between backrest frame and seat mechanism.

Installation:
Make sure air hoses are correctly connected to valve block (colour coding).
Air hoses must be laid without kinks.
Check lumbar cushion for damage.