32 41 060 Removing and refitting (replacing) vane pump for hydraulic steering gear (with N63 engine)

NOTE:

When replacing power steering pump:

OIL RESERVOIR must be replaced in event of metal abrasion, sluggish pump shaft or increased dirt contamination!

The filter integrated in the oil reservoir can only absorb a limited amount of foreign particles. If the filter clogs, the hydraulic system can no longer be sufficiently protected.

Metal abrasion is perceived in the oil reservoir as metallically glittering hydraulic fluid.

It is only necessary to replace the oil reservoir because of leaks (e.g. at hose connections) only in the event of the unavoidably high ingress of dirt.

WARNING:

DANGER OF POISONING if oil is ingested/absorbed through the skin!

RISK OF INJURY if oil comes into contact with eyes and skin!

IMPORTANT:

Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system.

Do not draw off hydraulic fluid (risk of contamination).

Necessary preliminary work:

Lower FRONT AXLE SUPPORT .
Draw off and dispose of hydraulic fluid from oil reservoir.
Remove BELT PULLEY .

Release hose clamp (1) and detach suction line from power steering pump.

Installation note:

Replace hose clamp.

Make sure hydraulic lines are laid without tension and with sufficient distance to adjoining components.

Align suction line by way of marking (2) to power steering pump connection marking.

Fig 1: Identifying Hose Clamp And Alignment Marking On Suction Line

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screw (1)

Tightening torque 32 41 10AZ

Release screw (2) and detach pressure line from power steering pump.

Tightening torque 32 41 18AZ

Unlock plug connection (3) on back of power steering pump and disconnect.

Installation note:

Make sure hydraulic lines are laid without tension and with sufficient distance to adjoining components.

Fig 2: Identifying Power Steering Pump Plug Connection And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Align intake pipe by way of marking to connection on power steering pump.

Release screws (1, 2) and remove power steering pump.

Tightening torque 32 41 9AZ .

Installation note:

Replace screws.

Make sure screws are installed in correct positions.

Screw (1) M10x110
Screw (2) M10x130

Fig 3: Identifying Power Steering Pump Screws
Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Fill and bleed HYDRAULIC SYSTEM .
Check pipe connections for leaks.