BMW 7 Series: Removing And Installing Electrical Steering Box Active Steering
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 event of moisture/corrosion inside the two plug connections, check the insulation of the connecting line. If the insulation reveals any noticeable/striking features, partial replacement will be necessary. Otherwise it will be sufficient to replace the contacts or connector housing.
NOTE: In a warranty case you must always provide a fault memory printout, even where there is no fault entry, with the defective part.
Necessary preliminary work:
- Disconnect BATTERY EARTH LEAD
- Remove underbody protection at FRONT and REAR
- Remove COVER FOR STEERING ASSEMBLIES on left and right
- Remove stiffening plate
- Remove TRACK ROD END on both sides from swivel bearing
- Remove LOWER SECTION of steering shaft from steering box
- Version with Dynamic Drive:
- Remove ANTI-ROLL BAR LINK ON RIGHT OF ANTI-ROLL BAR
IMPORTANT: To avoid the need for axle/wheel alignment, mark position of steering box (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.
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Fig. 61: Marking Position Of Steering Box To Front Axle Support
For greater clarity steering box shown removed.
Unlock plug connections (1) and disconnect.
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Fig. 62: Identifying Connectors
Unlock plug connection (1) and disconnect.
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Fig. 63: Identifying Connectors
Release screws (1).
Lay holder (2) with wiring to one side.
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Fig. 64: Identifying Holder And Screws
Release screws (1) and tie anti-roll bar (2) to front axle support.
Tightening torque 31 35 1AZ.
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Fig. 65: Identifying Anti-Roll Bar Link With Screws
Release screws (1).
Tightening torque 32 00 1AZ
Installation note: When installing, make sure that the steering box is realigned to the marking applied to the front axle support prior to removal.
Replace screws.
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Fig. 66: Identifying Steering Box Screw
IMPORTANT: Risk of damage! Plug connection (1) on electrical steering box must not be damaged when removing.
Remove steering box with wiring harness downward.
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Fig. 67: Identifying Connector
After installation:
- Teach in END STOP SOFTWARE
- Perform ALIGNMENT/START-UP for active steering
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Notes
NOTE: The work steps are show on assorted components.
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