32 13 006 Bleeding power steering unit

Filling and inspection specification:

1. Topping up when engine stationary:

   Top up oil container to (A) approx. 25 mm below edge.

2. Topping up and bleeding when engine running.
   1. 2.1 Topping up:

      When the engine is switched on, top up remaining quantity of oil, pouring evenly.

   2. 2.2 Bleeding:

      Turn steering wheel twice each as far as left and right lock.

3. Oil level check with engine stationary:

   Check oil level (mark on container lid). If necessary, top up oil.

   With oil level regulation:

   Oil level must lie approx. 25 mm below upper edge of container. If necessary, top up with oil.

   With level regulation and laden vehicle:

   Raise rear axle until wheels are suspended free. After 2 mins., the accumulators for level regulation are discharged.

   Oil level must be 20... 25 mm below top edge of container. If necessary, top up with oil.

   Fig 1: Identifying Power Steering Oil Top Up Dimensions

   Courtesy of BMW OF NORTH AMERICA, INC.

Necessary preliminary tasks: 

• Thoroughly clean fluid reservoir and its immediate surroundings.
• Open and remove fluid reservoir cap.

ATF Automatic transmission fluid.

CHF Pentosin CHF11S.

Fig 1: Identifying Fluid Reservoirs Caps Identification Marks

Courtesy of BMW OF NORTH AMERICA, INC.

1. Topping up when engine stationary:
   • Top up fluid reservoir to "MAX" mark on dipstick.

     Hydraulic fluid: refer to OPERATING FLUIDS .

   • Turn steering wheel twice each as far as left and right lock.
   • Top up fluid reservoir to "MAX" mark on dipstick.
2. Bleeding:
   • Start engine.
   • Turn steering wheel twice each as far as left and right lock.
3. Oil level check with engine off:
   • Check fluid level
   • Top up fluid reservoir to "MAX" mark on dipstick

   Refer to OPERATING FLUIDS .

4. Check:
   • Check pipe connections for leaks.