64 12 505 Removing and installing / replacing glow element (Thermo Top S): Notes
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 BMW 540i, 2002 BMW 540i, 2001 BMW 540i, 2000 BMW 540i, and 1999 BMW 540i. However, it is still accessible from the selected car via links, so may be relevant.
Release screws and turn over heater.
Release screws and remove central cover.
Disconnect all plug connections. Release screws and remove pull relief. Place wiring harness to one side.