Removal & Installation (4-Cylinder)
WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 1999 BMW Z3, 1999 BMW M3, 1999 BMW M Roadster, 1999 BMW M Coupe, and 1999 BMW 740iL. However, it is still accessible from the selected car via links, so may be relevant.
- Remove engine cover. See Figure. Pull off air duct hose and remove upper section of intake manifold collector. Remove engine front brace and rear brace.
- Locate pre-heater assembly (if equipped) directly under throttle body and loosen pre-heater holder until bearing surface of pre-heater comes in contact with throttle valve.
- Remove 9 intake manifold bolts. Lift upper section of intake manifold and pull hose off fuel pressure regulator. Pull connector plate off fuel injectors and remove clamp.
- Remove 2 bolts, fuel rail and fuel injectors. Remove retainer from top of fuel injector. See Fig 1. Remove fuel injector(s). To install, reverse removal procedure. Coat injector "O" rings with petroleum jelly.