Fuel System Pressure Release
WARNING: This page is about a different car, the 1995 BMW 740iL, 1995 BMW 740i, and 1995 BMW 540i. However, it is still accessible from the selected car via links, so may be relevant.
Fuel system pressure release procedure is not available from manufacturer. It may be possible to remove fuel pump relay, start engine, and run engine until fuel pressure drops (engine stalls).
Information on 540i, 740i and 740iL is not available from manufacturer.