Removing and installing lumbar support air cushion from front seat backrest - AR91.25-P-1445M
MODELS 220.0 /1 except CODE (404b) Multicontour backrest driver seat except CODE (405b) Multicontour backrest passenger seat except CODE (433) Left dynamic seat, incl. multicontour seat except CODE (434) Right dynamic seat, incl. multicontour seat
Fig 1: Identifying Lumbar Support Air Cushion From Front Seat Backrest Remove/Install Components - Models 220.0 /1 (1 Of 2)
Shown on vehicle without front luxury seat, incl. heated seat and seat ventilation, code 401a
Fig 2: Identifying Lumbar Support Air Cushion From Front Seat Backrest Remove/Install Components - Models 220.0 /1 (2 Of 2)
| Remove/install | |||
| 1 | Remove front seat backrest (1) | up to 31.8.02. | AR91.10-P-1060M |
| As of 1.9.02. | AR91.10-P-1060MB | ||
| 2 | Remove tensioning element from front seat backrest | AR91.10-P-1910E | |
| 3 | Remove head restraint raise/lower motor (M27m4/M28m4) | ||
| 4 | Place front seat backrest (1) onto a suitable underlay with the backrest cover (2) facing downwards | ||
| 5 | Pull backrest upholstery (2) out of clip groove (arrows) at bottom of backrest frame (3) | ||
| 6 | Pull out rubberized fiber matting (4) lug (arrows) at bottom of backrest frame (3) | ||
| 7 | Detach lugs on reinforcement plate (5) from spring wire of backrest frame (3) | ||
| 8 | Pull reinforcement plate (5) with air cushion (6) out of backrest frame (3) | ||
| 9 | Install in the reverse order | ||
| 10 | Perform lumbar support function check |