Removing and Installing Power Steering Pump (N62, N62TU) for Power Steering Gear With Dynamic Drive (From 10/03)

32 41 037 - Removing and installing power steering pump (N62, N62TU) for power steering gear with Dynamic Drive (from 10/03)





Important!
Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system.
Close off pipe connections with plugs.





Note:
When replacing power steering pump:
Fluid reservoir Removing and Installing/Replacing Fluid Reservoir for Power Steering With Dynamic Drive must be replaced in event of metal abrasion, sluggish pump shaft or increased wear!
The filter integrated in the fluid 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 fluid reservoir as metallically glittering hydraulic fluid.
It is only necessary to replace the fluid reservoir because of leaks (e.g. at hose connections) only in the event of the unavoidably high ingress of dirt.





Necessary preliminary tasks:
- Draw off and dispose of hydraulic fluid from fluid reservoir
- Remove drive belt Replacing Alternator Drive Belt
- Remove active stabilizer from front axle carrier Removing and Installing/Replacing Front Active Stabilizer
- Remove steering gear cover at side





Unscrew nut (1).

Installation Note:
Replace self-locking nut.
Tightening torque 32 41 5AZ Pump and Oil Supply.

Release banjo bolt and disconnect Dynamic Drive pressure line (2) with bracket from power steering pump.
Release banjo bolt and disconnect power steering pressure line (3) from power steering pump.

Installation Note:
Replace all sealing rings.
Make sure hydraulic lines are laid without tension and with sufficient spacing to adjoining components.
Tightening torque 32 41 3AZ Pump and Oil Supply.





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

Installation Note:
Align suction line (1) by way of marking to connection on power steering pump.

Release screw (2).
Tightening torque 32 41 1AZ Pump and Oil Supply.





Variant (A) - build date up to 05/04:
Release screws (1, 2).
Tightening torque 32 41 1AZ Pump and Oil Supply.
Remove power steering pump (3).
Variant (B) - build date from 05/04:
Release bolt (1) and nut (2).
Remove power steering pump (3).

Installation Note:
Replace self-locking nut.
Tightening torque 32 41 1AZ Pump and Oil Supply.





After installation:
- Fill and bleed hydraulic system Bleeding Power Steering (Version With Dynamic Drive)
- Check pipe connections for leaks
- If necessary, carry out initial Dynamic Drive operation Initial Operation With Test Run of Dynamic Drive