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:
Checking Rim For Lateral And Radial Runout
Necessary preliminary tasks
Remove WHEEL
Check WHEEL for lateral and radial runout
Remove TYRE from disc wheel
Remove dirt from rim well and rim flange
IMPORTANT: Disc wheels are not allowed to be repaired!
Mount disc wheel in balancing machine.
Fig. 30: Identifying Disc Wheel On Wheel Balanc
Periphery Of ICM Control Unit
Bus Systems
Fig. 45: Routing Diagram - ICM Control Unit With Flexray, Local CAN And
Wake-Up Line
INDEX REFERENCE CHART
Central gateway module
Dynamic Stability Control
Short range radar sensor (SRR), left
Long range radar sensor (LRR)
Short range radar sensor (SRR), right
DME/DDE control un
