Removal & Installation (V8)

WARNING: This page does not describe the selected car, but rather 82 other vehicles, including the 2006 BMW M3, 2006 BMW 330Ci, 2006 BMW 325Ci, 2005 BMW M3, and 2005 BMW 745i. However, it is still accessible from the selected car via links, so may be relevant.

Fuel pressure regulator is located at rear of intake manifold. Remove engine cover. See Figure. Remove coolant expansion tank and BMW diagnostic connector (if necessary). Disconnect vacuum hose from pressure regulator. Remove circlip and pull pressure regulator out of fuel rail.
To install, reverse removal procedure. Replace "O" rings on regulator and lubricate with petroleum jelly. Install regulator in fuel rail. Compress circlip and engage tabs of circlip into fuel rail.