BMW 7 Series: Removing And Installing Active Front Steering Hydraulic 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.
Seal connections and lines immediately after removal with sealing plugs.
Necessary preliminary tasks
- Draw off and dispose of hydraulic fluid from fluid reservoir
- Remove underbody protection at front and rear.
- Remove COVER FOR STEERING ASSEMBLIES on left and right
- Remove TRACK ROD END ON BOTH SIDES FROM SWIVEL BEARING
- Remove lower section of steering spindle from steering gear
- Replacement only: Remove TRACK ROD END AT BOTH ENDS OF TRACK ROD
- Version with Dynamic Drive:
- Remove front anti-roll bar.
- Remove EXPANSION HOSE
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Fig. 41: Identifying Marks On Steering Gear Box And Front Bolting Points
IMPORTANT: To avoid the need for axle/wheel alignment, mark position of steering gear (1) to front axle support (2).
To do so, draw a wide white stripe on the front bolting points (left and right) and apply a thin black marking (3) to this stripe.
Slacken nut (1).
Tightening torque 32 41 7AZ.
Release screw (2) on bracket.
Tightening torque 32 41 7AZ.
Release screw (3).
Tightening torque 32 00 1AZ.
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Fig. 42: Identifying Front Axle Nut And Screws
Unlock plug connections (1) and disconnect.
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Fig. 43: Identifying Plug Connections
Pull hydraulic steering gear towards front a little.
Unfasten plug connection (1) and disconnect.
Release screw (2) and remove lines (3) from hydraulic steering gear.
Tightening torque 32 41 5AZ.
Remove power steering gear in downward direction.
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Fig. 44: Identifying Plug Connections And Hydraulic Steering Gear Screw And
Fluid Lines
After installation
- Fill and bleed hydraulic system.
- Check pipe connections for leaks
- ADJUSTMENT FOR ACTIVE STEERING
- If necessary, carry out INITIAL DYNAMIC DRIVE OPERATION
READ NEXT:
Removing And Installing Electric Steering Box (EPS)
IMPORTANT: Steering box:
Check connection of steering box for corrosion, clean contacts if necessary.
The steering box must be replaced if the corrosion is too far advanced.
Connecting line:
In the
Removing And Installing Hydraulic 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 d
Replace Electrical Steering Box (EPS)
IMPORTANT: Steering box:
Check connection of steering box for corrosion, clean contacts if
necessary.
The steering box must be replaced if the corrosion is too far advanced.
Connecting line:
In the
SEE MORE:
Notes On Handling Wiring Harnesses And Cables
The following applies in general
To avoid damage, observe the following instructions:
Avoid compressive and tensile loads
To ensure professional repairs, perform repair work only with
BMW-approved or recommended special
tools and spare parts
Make sure cables are laid without kinks or abrasion
Emergency wheel
Concept
In the event of a flat tire, the emergency wheel
can be used in place of the wheel with the defective
tire. The emergency wheel is only intended
for temporary use until the defective tire/wheel
has been replaced.
General information
Mount one emergency wheel only.
Also check the tire inflat
