High-Pressure Test
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.
NOTE:
Perform test on both brake circuits, front and rear.
- Unscrew bleeder screw, connect pressure tester and bleed. See Figure .
- Load brake pedal with a force of approximately 112 lbs. (500 N), and block pedal with pedal support.
- After 2 minutes, pressure must not drop by more than 8 percent.
- Perform low-pressure test. See LOW PRESSURE TEST .