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.
Disconnect accelerator and cruise control cables from throttle body. See Figure. Loosen throttle body air intake duct hose clamps and remove hoses. Disconnect throttle position switch connector and vacuum hoses. Remove 4 nuts, throttle body and gasket. To install, reverse removal procedure.