Description & Operation
WARNING: This page is about a different car, the 2004 BMW Z4 and 2003 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
Cooling fan is controlled by Digital Motor Electronics (DME) control unit. See WIRING DIAGRAMS . Cooling module is separated by a partition (radiator core support) from the engine. See Fig 1 and Fig 2 .