17 00 005 Draining And Topping Up Coolant: M40

WARNING: This page is about a different car, the 2002 BMW M Roadster, 2002 BMW M Coupe, 2001 BMW M Roadster, and 2001 BMW M Coupe. However, it is still accessible from the selected car via links, so may be relevant.

Loosen additional vent screw on thermostat housing.

Fig 1: Locating Vent Screw On Thermostat Housing (M40)

Courtesy of BMW OF NORTH AMERICA, INC.