REP-TAT-P-5218-01 Remove lumbar support

WARNING: Airbag unit.
Danger! Immobilization period-threatening injuries!

Before performing any work on the airbag, always disconnect the battery ground lead from the battery.
Airbag unit may only be set down with the cushion (airbag itself) facing upwards.
For additional information see: NOTES on handling airbag system components/gas generators

WARNING: Pyrotechnic components.
Danger! Immobilization period-threatening injuries!

All work on pyrotechnic parts may be carried out by technically experienced and appropriately trained personnel only.
Replace any damaged part or ones that have been dropped.
For additional information see: NOTES Safety regulations on handling components with gas generators.

Preliminary work

Remove the COVER for backrest adjustment

Remove the STEERING LEVER for backrest adjustment

Remove the LEVER for seat height adjustment

Remove the OUTER COVER on the front seat

Remove TRIM for backrest release

Remove the REAR PANEL from the front seat backrest

Remove the TRIM at the bottom of the aperture

Remove SIDE AIRBAG from front seat

Remove the BACKREST COVER with the cushion

Detach lumbar support (3) from the holders (1) and backrest frame (2).

Courtesy of BMW OF NORTH AMERICA, INC.
Cover working area and drill out blind rivet (1).
Remove adjuster (2) and take it out with the Bowden cable from the backrest frame.

Courtesy of BMW OF NORTH AMERICA, INC.