Checking Power Steering (4WD)

WARNING: This page does not describe the selected car, but rather 48 other vehicles, including the 2006 BMW M3, 2006 BMW 330xi, 2006 BMW 330Ci, 2006 BMW 325xi, and 2006 BMW 325Ci. However, it is still accessible from the selected car via links, so may be relevant.

Open valve (B).
Close valve (A).
Start engine.
Pull steering wheel with special tool (64 1 100) at 22.5 Lbs. (100 N) for approximately 5 seconds against left lock and read off pressure. See Fig 1.
Measure at right limit position.
Replace steering gear if the pressures are below the previously determined pump pressure.
Remove special tool (32 4 000) and connect pressure line. Tighten lines to specification. See TORQUE SPECIFICATIONS .
Bleed hydraulic system. See BLEEDING POWER STEERING SYSTEM under LUBRICATION.

Fig 1: Using Special Tool (64 1 100)

Courtesy of BMW OF NORTH AMERICA, INC.