BMW X5: Checking Function Of Power Steering Vane Pump
Special tools required:
- 32 4 000
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.
Prior to this check, first check all hose connections, the vane pump and the power steering gear for leaks.
Necessary preliminary tasks:
- Draw off and dispose of hydraulic fluid from fluid reservoir.
- Remove front assembly underside protection.
- Disconnect pressure line from vane pump.
Connecting special tool:
Connect special tool 32 4 000 with new sealing rings to vane pump and pressure line.
- Connection, vane pump
- Connection, power steering gear
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Fig. 85: Identifying Special Tool (32 4 000)
Checking pump pressure:
- Close valve (A).
- Open valve (B).
- Fill and bleed hydraulic system.
- Start engine
- Heat hydraulic fluid to approx. 50ºC by moving steering wheel at increased engine speed.
- Close valve (B) for max. 10 secs. and read off pressure.
- Compare measured pressure with specified nominal pressure.
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Fig. 86: Identifying Special Tool (32 4 000)
Replace vane pump if the nominal pressure is exceeded by more than 10 %.
Check belt tension if the nominal pressure is undershot by more than 10 %. Replace vane pump if belt tension is OK.
After installation:
- Fill and bleed hydraulic system.
- Check pipe connections for leaks.
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Removing And Installing Power Steering Pump For Power Steering Gear
With Active Front Steering (N62TU)
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 d
Removing And Installing/Replacing Fluid Reservoir For Power Steering
Special tools required:
32 1 260
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 ut
Replacing Pressure Line For Power Steering (From Cutting Line To
Steering Gear) (N62)
WARNING: Danger to life!
Mount securing fixture for vehicle on lifting platform to prevent the
vehicle from slipping off or tilting down.
Secure engine in installation position to prevent it from fal
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Crankcase Ventilation
One of the major changes on the new NG6 engines is that the crankcase
ventilation system has been upgraded
and improved. This applies to all of the new NG6 versions (N52KP, N51 and N54).
There are two distinct versions of crankcase ventilation. One type is unique to
the N54 and the other applies
Removing And Installing/Replacing Left Intermediate Levers (N62
From 9/03 And N62TU)
Special tools required:
11 9 470
11 9 472
11 9 473
11 9 474
11 9 475
11 9 480
11 9 490
(cylinder bank 5 to 8)
Removal of intermediate levers is described separately from installation.
Necessary preliminary tasks:
Remove servomotor for left eccentric shaft.
Remove ignition coils on cylin
