BMW 7 Series: Replacing Return Line For Hydraulic Steering (From Cooler To Steering Gear)
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 line connections with seal plugs.
Recycling
Catch and dispose of hydraulic fluid in a suitable collecting vessel.
Necessary preliminary work
- Draw off and dispose of hydraulic fluid from oil reservoir
- Remove FAN COWL (rear-wheel drive only)
- Remove underbody protection at front and rear.
- Remove HYDRAULIC STEERING GEAR (F01/F02/F03/F07 only rear-wheel drive)
- Lower front axle support (F04 and all-wheel drive vehicles)
Release screw (1) and remove return line (2) from hydraulic steering gear.
Installation note: Replace all sealing rings.
Make sure hydraulic line is laid without tension and with sufficient distance to adjoining components.
Tightening torque 32 41 5AZ.
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Fig. 171: Identifying Hydraulic Steering Gear Return Line With Screw
Remove return line (1) from holder (2).
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Fig. 172: Identifying Hydraulic Steering Gear Return Line With Holder
Slacken nut (1).
Tightening torque 32 41 7AZ.
Slacken nut (2).
Release screw (3).
Tightening torque 32 41 16AZ.
Remove return line (2).
Installation note: Make sure hydraulic line is laid without tension and with sufficient distance to adjoining components.
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Fig. 173: Identifying Return Line With Nut And Screws
Release QUICK-RELEASE COUPLING and seal power steering cooler connection with a suitable plug.
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Fig. 174: Identifying Quick-Release Coupling
After installation
- Fill and bleed HYDRAULIC SYSTEM
- Check line connections for leak tightness
READ NEXT:
Replacing Suction Line For Power Steering (From Connecting Piece To Vane
Pump)
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 d
Replacing Suction Line For Power Steering (From Fluid Reservoir To
Connecting Piece)
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 d
Electronic Power Steering
ADJUSTMENT/INITIAL OPERATION FOR ACTIVE FRONT STEERING
NOTE: Adjustment/start-up of the active steering must be carried out:
Before adjustment work on the front axle/steering
After work on the stee
SEE MORE:
System Overview
The following pages show the input/outputs and the schematic circuit diagrams
of the F01/F02 voice input and
activation systems.
The driver's side microphone is the only device used for voice input.
Voice input is always activated by pressing the PTT button (push-to-talk button)
on the steering
Replacing Drive Flange On Left/Right Rear Axle Shaft
Necessary preliminary work
Remove REAR WHEEL.
IMPORTANT: Expand anti-twist lock sufficiently to avoid damaging thread
when releasing
collar nut.
Activate parking brake and release collar nut.
Tightening torque 33 41 1AZ
Installation note:
Lightly oil the gearing at the shaft journal.
No oil
