32 41 421 Replacing expansion hose part 2 (with ARS), to the hydraulic steering gear (AWD with N63 engine)
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Special tools required:
WARNING:
DANGER OF POISONING
if oil is ingested/absorbed through the skin!
RISK OF INJURY if oil comes into contact with eyes and 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.
Do not draw off hydraulic fluid (risk of contamination).
Close off line connections with seal plug. 32 1 270
Do not draw off hydraulic fluid (risk of contamination).
Close off line connections with seal plug. 32 1 270
Recycling
Catch and dispose of hydraulic fluid in a suitable expansion tank.
Necessary preliminary work
- Remove front UNDERBODY PROTECTION
- Remove front REINFORCEMENT PLATE
- Remove left steering assembly COVER
IMPORTANT:
Pressure line and connections must be provided with suitable seal plugs 32 1 270
immediately after removal!
Release screw connection (1) on the steering box.
Tightening torque 32 41 5AZ .
Detach line (2) from steering box.
Release screw (1) from line flange.
Tightening torque 32 41 11AZ
Release holder (2) and remove line towards the front.
Tightening torque 32 41 7AZ
IMPORTANT:
When assembling, make sure that in succession only the seal plugs of the line to be fitted are removed.
When fitting lines, do not tilt connectors (sealing rings!) and connect fully before screwing.
Do not replace sealing rings on hydraulic lines.
Replace affected line if sealing ring is damaged.
When fitting lines, do not tilt connectors (sealing rings!) and connect fully before screwing.
Do not replace sealing rings on hydraulic lines.
Replace affected line if sealing ring is damaged.
After installation
- Fill and bleed HYDRAULIC SYSTEM
- Check line connections for tightness
- Carry out INITIAL DYNAMIC DRIVE OPERATION