52 13 055 Lumbar Support on Front Seat

52 13 055 - Removing and installing/replacing lumbar support on front seat





Necessary preliminary tasks:
- Remove rear panel on front seat 52 13 198 Rear Panel on Left or Right Front Seat Backrest





Detach backrest cover (1) from backrest frame.





Note:
Do not pop valve housing (1) out of backrest frame for this operation.

Carefully pull valve housing (1) forwards out of backrest frame.

Unlock quick connectors and detach air hoses from valve housing (1).

Note:
Connections are coded against incorrect assembly.





Detach lumbar cushion (1) from spring wire.

Installation:
Attach lumbar cushion (1) to second and fourth wires from below.

Press backrest support forwards a little.

Pull out lumbar cushion (1) downwards.
Feed air hoses out of backrest frame and spring wire.





Installation:
Check lumbar cushion at top (1) and bottom (2) for damage.
Air hoses (3) must not be kinked.





Installation:
Carry out function check Initial Inspection and Diagnostic Overview.