37 13 130 Removing and installing/replacing underfloor pressure lines for oscillating motor (HA1/HA2)

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2015 BMW 750i, 2015 BMW 750Li, and 2015 BMW 740i. However, it is still accessible from the selected car via links, so may be relevant.

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 line connections with seal plug 32 1 270 .

Recycling:

Catch and dispose of hydraulic fluid in a suitable container.

Necessary preliminary tasks:

Remove RIGHT UNDERBODY PANELLING

IMPORTANT: Pressure lines and connections on valve block must be fitted with suitable sealing plugs (32 1 270 ) immediately after removal!

Release screws (1) for hydraulic lines on valve block.

Tightening torque 37 13 3AZ .

Fig 1: Identifying Valve Block Hydraulic Line Mounting Screws

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Note installation position of spacers (1) and (2).
Failure to do so may result in noises/rattling!

Fig 2: Identifying Valve Block Hydraulic Line Spacer

Courtesy of BMW OF NORTH AMERICA, INC.

Open holder (1) and remove pressure lines.

Installation:

If necessary, replace damaged holders.

Fig 3: Identifying Oscillator Motor Underfloor Pressure Line Holder

Courtesy of BMW OF NORTH AMERICA, INC.

Up to build date 08/09:

Release banjo bolts (1).

Tightening torque 37 13 5AZ .

Hydraulic lines must be provided with suitable sealing plugs 32 1 270 immediately after removal!

Fig 4: Identifying Oscillator Motor Underfloor Hydraulic Line Banjo Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Build date from 08/09:

Release screw connections (1) and (2).

Tightening torque 37 13 12AZ .

Hydraulic lines must be provided with suitable sealing plugs 32 1 270 immediately after removal!

Fig 5: Identifying Oscillator Motor Underfloor Pressure Line Screw Connections

Courtesy of BMW OF NORTH AMERICA, INC.

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.

After installation:

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