Removing and Installing/Replacing Power Steering Pump for Power Steering Gear With Dynamic Drive

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





Warning!
Danger to life!
Secure engine in installation position Securing Engine in Installation Position to prevent it from falling down.

Important!
Adhere to the utmost cleanliness. Do not allow any dirt to enter the hydraulic system.
Seal off hydraulic lines with plugs.





Note:
When replacing power steering pump:
Fluid reservoir Removing and Installing/Replacing Fluid Reservoir for Power Steering with Dynamic Drive / Active Front Steering 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
- Relieve tension on drive belt Replacing Alternator Drive Belt and remove from power steering pump belt pulley
- Lower front axle carrier Lowering / Raising Front Axle Carrier





Release hose clamp (1) and detach suction line from power steering pump.
Unscrew nut (3).
Tightening torque, 32 41 6AZ Pump and Oil Supply.
Release banjo bolt (2) and detach pressure line for Dynamic Drive from power steering pump.
Release banjo bolt (4) and disconnect pressure line for power steering 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.





Version with active front steering: Disconnect plug connection (1).
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) downwards.
Variant (B) - build date from 05/04:
Release bolt (1) and nut (2).
Tightening torque 32 41 1AZ Pump and Oil Supply.
Remove power steering pump (3) downwards.





After installation:
- Fill and bleed hydraulic system Bleeding Power Steering (Version with Dynamic Drive)
- Check pipe connections for leaks
- Carry out steering angle sensor adjustment/adjustment for active front steering
- If necessary, carry out initial Dynamic Drive operation Initial Inspection and Diagnostic Overview