32 41 433 Removing and installing/replacing ARS expansion hose part 4

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

32 1 270

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.
Do not draw off hydraulic fluid (risk of contamination).
Close off pipe connections with plugs. 32 1 270

Recycling

Catch and dispose of hydraulic fluid in a suitable container.

IMPORTANT: Pressure line and connections must be provided with suitable plugs 32 1 270 immediately after removal!

ARS expansion hose part 4 overview:

1	Line 1
2	Line 2
3	Line 3

Fig 1: Overview Of ARS Expansion Hose

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Removing line 1:

Necessary preliminary tasks

Lower FRONT AXLE SUPPORT .

Release screws (1) from line flange in engine compartment.

Replace sealing ring.

Tightening torque 37 13 8AZ.

Fig 2: Identifying Line Flange Screws

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Release screw (1) from holder of oil cooler line over front axle carrier.

Release holder in front axle carrier (see arrow) of pressure line (2).

Fig 3: Releasing Front Axle Carrier Pressure Line Holder

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Release screw connection (1) on T-piece.

Tightening torque 37 13 5AZ .

Feed out line through wheel arch.

Fig 4: Removing Underbody Protection

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Removing line 2:

Necessary preliminary tasks

Remove UNDERBODY PROTECTION .
Release ACTIVE STABILIZER from front axle carrier and tie up.
Remove front pressure line from active stabilizer
Remove ARS EXPANSION HOSE PART 3 .

Release both nuts (1) from line holder.

Release screw connection (2) and remove line.

Tightening torque 37 13 5AZ .

Fig 5: Identifying Pressure Line Nut And Screw Connection

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Removing line 3:

Necessary preliminary tasks

Remove UNDERBODY PROTECTION .
Remove ACTIVE STABILIZER from front axle carrier and hang up.
Remove front pressure line from active stabilizer
Remove ARS EXPANSION HOSE PART 3 .

Unfasten screw fitting (1).

Tightening torque 37 13 5AZ .

Fig 6: Identifying Screw Fitting

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Release screw (1) on line holder.

Feed out line upwards to remove.

Fig 7: Identifying Line Holder Mounting Screw

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IMPORTANT: When assembling, make sure that in succession only the sealing 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.

After installation

Fill and bleed HYDRAULIC SYSTEM .
Check line connections for leaks
Carry out INITIAL DYNAMIC DRIVE OPERATION .