52 17 050 Replacing lumbar support cushion on left or right front seat (comfort)

WARNING: This page is about a different car, the 2003 BMW 530i, 2002 BMW 530i, and 2001 BMW 530i. However, it is still accessible from the selected car via links, so may be relevant.

Remove backrest, refer to 52 17 405 REPLACING BACKREST COVER FOR FRONT SEAT (COMFORT) ON LEFT OR RIGHT SIDES .

Remove bottom of cover from claw-type cover clips.

Fig 1: Removing Bottom Of Seat Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Remove hose (1) (red - large cushion) and hose (2) (blue - small cushion) from control unit (3).

NOTE: If seat fixed in position, slightly heat hose, housing (valve block) must not be unclipped (leaks). If it is unclipped, release screws and clip together housing.

Fig 2: Removing Hoses From Lumbar Control Unit

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect top of lumbar support cushion (1) from spring wire (2). Press support (3) downwards and remove lumbar support cushion.

Fig 3: Removing Lumbar Support Cushion

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Attach lumbar support cushion (1) at bottom left/right with recesses (2) above the spring.

Fig 4: Installing Lumbar Support Cushion

Courtesy of BMW OF NORTH AMERICA, INC.