Checking Pump Pressure
WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, 2001 BMW X5, and 2000 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
- Close valve (A) and open valve (B). See Fig 1.
- Start engine. Ensure correct hydraulic fluid level in tank.
- Heat hydraulic fluid to approximately 122° F (50° C) by moving steering wheel at increased engine speed.
- Close valve (B) for a maximum 10 seconds and read off pressure. If pressure exceeds 1740-1886 psi (120-130 bar) by more than 10 percent replace vane pump. If pressure is 10 percent less than 1740-1886 psi (120-130 bar), check ribbed V-belt tension. If tension is OK, replace vane pump.
- Connect pressure line after removing special tool. Tighten to specification. See TORQUE SPECIFICATIONS .
- Bleed hydraulic system. See BLEEDING POWER STEERING SYSTEM under LUBRICATION.