52 17 060 Removing And Installing/Replacing Valve Housing For Lumbar Cushion (Comfort)
WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.
This operation is identical to:
Replacing valve housing for lumbar cushion (normal/electric). See 52 25 059 REMOVING AND INSTALLING/REPLACING VALVE HOUSING FOR LUMBAR CUSHION .