Removal & Installation (3-Series - E46)

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.

Fig 1: Removing PCM Cover Screws (E46)

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 2: Removing PCM (E46)

Courtesy of BMW OF NORTH AMERICA, INC.