32 41 037 Removing and Installing/Replacing Power Steering Pump For Hydraulic Steering Gear With Dynamic Drive

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





Note:
When replacing power steering pump:
Fluid reservoir Service and Repair 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.





Warning!
Secure engine in installation position with special tool Securing Engine In Installation Position to prevent it from falling down.





Warning!
Danger of poisoning 00 .. ... Danger of Poisoning If Oil Is Ingested/Absorbed Through the Skin if oil is ingested/absorbed through the skin!
Risk of injury 00 .. ... Risk of Injury If Oil Comes Into Contact With Eyes and Skin 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.
Seal off hydraulic lines with plugs.





Necessary preliminary tasks:
- Draw off and dispose of hydraulic fluid from fluid reservoir
- Remove belt pulley 32 41 100 Removing and Installing/Replacing Belt Pulley on Vane Pump For Power Steering
- Lower front axle support 31 11 506 Lowering/Raising Front Axle Support





Note:
a) - Power steering pump (up to 10/07) with pulsation damper (1)
b) - Power steering pump (10/07 to 04/08) without pulsation damper





Version with active front steering: Disconnect plug connection (1).
Release hose clamp (4) and detach suction line from power steering pump.
Release banjo bolt (3) and disconnect pressure line for power steering from power steering pump.
Release banjo bolt (2) and detach pressure line for Dynamic Drive from power steering pump.

Installation:
Replace all sealing rings.
Make sure hydraulic lines are laid without tension and with sufficient spacing to adjoining components.
Align suction line by way of marking to connection on power steering pump.
Tightening torque 32 41 4AZ 32 41 Pump and Oil Supply (for power steering).
Tightening torque 32 41 10AZ 32 41 Pump and Oil Supply (for Dynamic Drive valve block without pulsation damper).





Release screws (1) and remove holder (2) and power steering pump towards bottom.
Tightening torque 32 41 3AZ 32 41 Pump and Oil Supply.





After installation:
- Fill and bleed hydraulic system 32 13 006 Bleeding Power Steering (Version With Dynamic Drive)
- Check pipe connections for leaks
- Perform chassis alignment check
- Carry out steering angle sensor adjustment/adjustment for active front steering
- If necessary, carry out initial Dynamic Drive operation Initial Operation with Test Run of Dynamic Drive