Downshift Protection
WARNING: This page does not describe the selected car, but rather 43 other vehicles, including the 2006 BMW M3, 2006 BMW 330Ci, 2006 BMW 325Ci, 2005 BMW M3, and 2005 BMW 330xi. However, it is still accessible from the selected car via links, so may be relevant.
If the driver moves the range selector to a lower gear at higher vehicle speeds, the GS 20 delays the down shift until the road speed drops below a programmed value. This feature protects the powertrain from unnecessary loads ensuring long life operation.