52 24 390 Removing And Installing/Replacing Rear Left Or Right Head Restraint (Normal)
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 task is described in Replacing rear head restraint (comfort) . See 52 25 390 REMOVING AND INSTALLING OR REPLACING LEFT OR RIGHT REAR HEAD RESTRAINT .