32 41 060 Removing and installing/replacing vane pump for power steering (S85)
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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. Close off pipe connections with plugs.
Necessary preliminary tasks:
- Draw off and dispose of hydraulic fluid from fluid reservoir.
- Remove belt pulley .
- Remove drive belt tensioner. See 11 28 020 REPLACING TENSIONING DEVICE FOR ALTERNATOR DRIVE BELT (S85)
- Remove front underbody protection. See 51 47 490 REMOVING AND INSTALLING / REPLACING FRONT UNDERBODY PROTECTION .
Unclip cover, release screw (1) and remove deflection pulley (2). Release screws (3, 4).
Release banjo bolt (1) and detach pressure line (2) from vane pump. Installation: Replace all sealing rings. Make sure pressure line is laid without tension and with sufficient spacing to adjoining components. Tightening torque, see 32 41 3AZ in 32 41 PUMP AND OIL SUPPLY .
Release hose clamp (3) and detach suction line (4) from vane pump. Release screws (5) and remove vane pump towards front. Tightening torque, see 32 41 1AZ in 32 41 PUMP AND OIL SUPPLY .
After installation:
- Fill and bleed hydraulic system .
- Check pipe connections for leaks.