Dry braking of the brake discs on wet roadways
WARNING: This page does not describe the selected car, but rather 45 other vehicles, including the 2016 BMW M5, 2016 BMW 550i xDrive, 2016 BMW 550i, 2016 BMW 535i xDrive, and 2016 BMW 535i. However, it is still accessible from the selected car via links, so may be relevant.
Dry braking removes the moisture deposited on the brake disc when driving on wet roads or in the rain. Here, the brake pads are applied slightly. This function also shortens the brakes' response time. DSC employs a cyclical control process to reduce braking pressure in response to signals from the rain sensor and the position of the wash/wipe switch. This creates no measurable deceleration on the vehicle. The brake pads are cyclically applied. The brake discs are wiped regularly in the process. The frequency and duration of brake-pad applications varies according to:
- The intensity of the rain, e.g. speed of the wiper
- Driving speed greater than 70 km/h