Removal & Installation (3-Series - E46)
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.
PCM is located in box in left rear corner of engine compartment. See Fig 1. Remove 4 cover screws. Disconnect PCM connector. Remove PCM. See Fig 2. To install, reverse removal procedure. Ensure wiring harness and cover are correctly installed to prevent water entry.
Courtesy of BMW OF NORTH AMERICA, INC.
Courtesy of BMW OF NORTH AMERICA, INC.