52 13 560 Removing and installing/replacing valve housing for from left or right lumbar support (normal/ manual)

WARNING: This page is about a different car, the 2003 BMW 525i, 2002 BMW 525i, and 2001 BMW 525i. However, it is still accessible from the selected car via links, so may be relevant.

Remove rear panel from front seat backrest,

refer to 52 13 198 REMOVING AND INSTALLING / REPLACING REAR PANEL ON LEFT OR RIGHT FRONT SEAT BACKREST (NORMAL/MANUAL)

Remove hose (1) (Blue = small cushion) and hose (2) (Red = large cushion) from control unit (3).

NOTE: If hose is too firmly seated, heat it slightly. Housing (valve block) must not be clipped in (leakage). If it is unclipped, loosen screw and clip together the housing.

Fig 1: Removing Hoses

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew screw. Lift valve housing upwards and pull down to remove.

Fig 2: Lifting Valve Housing

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Check function.