52 17 130 Replacing lumbar support set on left
WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2018 BMW M6, 2018 BMW 650i xDrive, 2018 BMW 650i, 2018 BMW 640i xDrive, and 2018 BMW 640i. However, it is still accessible from the selected car via links, so may be relevant.
Necessary preliminary tasks:
- Removing seat cover with upholstery. See 52 17 402 REPLACING SEAT COVER FOR DRIVER'S SEAT (COMFORT) or 52 17 404 REPLACING SEAT COVER FOR PASSENGER FRONT SEAT (COMFORT) .
- Partially remove backrest cover. See 52 17 407 REPLACING BACKREST COVER FOR DRIVER'S SEAT (COMFORT) or 52 17 408 REPLACING BACKREST COVER FOR FRONT PASSENGER SEAT (COMFORT) .
NOTE:
Pressure distributor and pneumatic pockets form a single unit and can only be replaced as a single component.
Lever out clips (2).
Thread out valve holder (1).
Installation note:
Replace faulty clips.
Unlock plug connections (1) and disconnect.
Open quick connectors (2) and remove pressure lines.
Unclip complete holder (1) for pressure lines from seat mechanism.
Installation note:
Replace faulty clips.
Release screws (1).
Partially remove belt deflection to simplify removal.
Unclip pneumatic pockets (1) with supports on left and right from flexmat.
Feed pneumatic pockets (1) through flexmat towards bottom.
Open quick connectors (1) and remove pressure line.
Thread out hose through backrest frame.
NOTE:
- Carry out FUNCTION CHECK WITH ADAPTER CABLE