BMW 7 Series: Removing And Installing/Renewing Pressure Lines For Valve Block (Short)
Notes
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.
Necessary preliminary tasks
- Remove FRONT RIGHT WHEEL ARCH COVER REAR SECTION
- Release front right UNDERBODY PANELLING
To prevent the oil reservoir from running empty, disconnect return line with special tool 13 3 010.
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Fig. 112: Disconnecting Return Line Using Special Tool (13 3 010)
IMPORTANT: Pressure lines and connections on valve block must be fitted with suitable seal plugs immediately after dismantling!
Release screw (1) and (2) of return line and pull off return line (3).
Tightening torque 37 13 13AZ.
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Fig. 113: Identifying Screws
Installation note:
Attention:
When tightening screw connection (1), counter support line (2) with pliers (3).
Non-compliance will result in damage to the line (2)! Tightening torque 37 13 14AZ.
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Fig. 114: Applying Counter Support With Wrench During Tightening Screw
Connection
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 pipe connections for leaks
- Perform INITIAL OPERATION OF ARS
After installation
- Fill and bleed HYDRAULIC SYSTEM
- Check line connections for leaks
- Carry out INITIAL DYNAMIC DRIVE OPERATION
READ NEXT:
Initial Operation With Test Run Of Dynamic Drive
NOTE: The Service function Initial operation of Dynamic Drive must be
carried out
after:
Work on the Dynamic Drive system which involved opening hydraulic lines
Replacement/Programming/Coding Dyna
Removing And Installing/Replacing Control Unit For Air Supply
System
IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC
DAMAGE (ESD PROTECTION).
Necessary preliminary tasks
Remove ignition key
Disconnect BATTERY NEGATIVE LEAD
Remove RIGHT LUG
SEE MORE:
Notes On Adhesive K4
IMPORTANT: Note the following information before starting to apply
adhesive!
Country-specific safety and industrial safety regulations
Material safety data sheet of manufacturer
Processing instructions on glue cartridge
Storage
Dry at 15º- 25ºC.
Shelf life
The glue cartridge is marked with a
Opening Adhesive Bonds
1. Opening spot-weld bonds
OPEN WELD SPOTS.
WARNING: Extract vapors and gases.
Use personal protective clothing/equipment.
Heat connecting flange with a hot-air blower. Heat components to max. 250ºC
object temperature.
Release connection flange with chisel.
Remove adhesive residue from connecti
