52 14 050 Replacing lumbar cushion on front left or right seat
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 528xi, 2010 BMW 528i, 2009 BMW 528xi, 2009 BMW 528i, and 2008 BMW 528xi. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
- 52 0 050 . See SEATS - SPECIAL TOOLS .
Necessary preliminary tasks:
- Remove rear panel on front seat backrest. See 52 14 198 Removing and installing / replacing rear panel on left or right front seat backrest (normal / electric) or 52 17 205 Removing and installing/replacing both rear panels on left or right front seat backrest (long version) .
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.
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.
NOTE:
Remove all remnants of retainers. Lock new retainers by bending 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 (color coding).
Air hoses must be laid without kinks.
Check lumbar cushion for damage.