High-Pressure Test
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2006 BMW X5, 2005 BMW X5, 2004 BMW X5, 2003 BMW X5, and 2002 BMW X5. 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 vent plug, connect pressure tester and vent. See Figure.
- Load brake pedal with a force of approximately 112 lbs. (500 N), and block pedal with pedal support. Line pressure should be approximately 479 PSI (33 bar).
- After 2 minutes, pressure must not drop by more than 8 percent.
- Perform low-pressure test.