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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WARNING: Danger of poisoning if oil is ingested/absorbed through the
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IMPORTANT: Adhere to the utmost cleanliness. Do not allow any d
Removing And Installing/Replacing Fluid Reservoir For Power Steering
Special tools required:
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Mount securing fixture for vehicle on lifting platform to prevent the
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Secure engine in installation position to prevent it from fal
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Necessary preliminary tasks:
Switch off ignition
Lever out expansion rivets (1).
Press lock (2) and raise intake duct (3).
Detach intake duct (3) from air filter housing and remove.
Fig. 8: Identifying Expansion Rivets, Lock And Int
Removing And Installing/Replacing Rear Differential
Special tools required:
33 5 120
33 5 122
33 5 125
33 5 200
33 5 206
WARNING: Danger of injury!
Rear differential must be lashed with tightening strap 33 5 206 to prevent
it falling out when the output shafts are forced off.
Necessary preliminary tasks:
Remove propeller shaft on rear differ
