Releasing the parking brake
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
To release the parking brake, the parking brake button is pressed downwards. However, to actually open the parking brake, terminal 15 must be on and at least one of the following preconditions must be met:
- Brake pedal operated
- Parking lock of the automatic transmission engaged
- Clutch pedal operated (only vehicles with manual gearbox)
This prevents the vehicle rolling away, for example if another occupant presses the parking brake button instead of the driver. If the parking brake is released, the red indicator lights in the instrument panel and the red LED in the parking brake button no longer illuminate.
Activating the EMF actuator sets the spindle in motion. The spindle rotation moves the spindle nut away from the brake pistons.