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Front Axle Carrier: Removal

WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support vehicle. Remove front wheels. Remove acoustic cover. Move engine hood into service position.
  2. Remove air filter housing. Remove microfilter.
  3. Remove tension strut on spring strut dome. See TENSION STRUTS .
  4. Remove expansion tank fasteners and place expansion tank to one side. DO NOT disconnect coolant hoses. Remove servo fluid reservoir and place to one side.
  5. Assemble Special Tool (00 0 200) with Special Tools (00 0 201/202/203/204/208) and install. See Fig 1.Secure special tool (11 0 000) to front and rear engine lifting eyes and to special tool (00 0 200). Supports (1) of special tool (00 0 208) must rest on screw connection (2) of both side panels. See Fig 2.
  6. Tighten screws (1, 2). See Fig 3.
  7. Release engine mounts at top left and right. Raise engine with Special Tool (00 0 200) about .4" (10 mm).
  8. Remove stabilizer bar link on spring strut. See FRONT STABILIZER BAR .
  9. Remove left and right brake calipers and tie back to body. Lines remain connected. To avoid damaging brake hoses, DO NOT allow calipers to hang on brake hoses.
  10. Release screws (1) and remove reinforcement plate. See Fig 4.
  11. On convertible only, remove front tension struts. See TENSION STRUTS .
  12. Remove lower section of steering spindle from steering gear. See STEERING SPINDLE LOWER SECTION .
  13. Remove return line for power steering/Dynamic Drive from radiator. If necessary, unlock and disconnect plug from ride-height sensor.
  14. On vehicles with Dynamic Drive, draw off and dispose of hydraulic fluid from fluid reservoir. Observe all waste disposal regulations. Remove nut (1) for Dynamic Drive return line. See Fig 5. Remove nut (2) for Dynamic Drive pressure line. Remove nuts (3) for pressure lines to front axle oscillating motor. Release cable ties for wiring harness (4).
  15. On vehicles with active front steering, unlock plug (1) and remove. See Fig 6. Remove line from retainer (2). Unlock and disconnect plugs (3) and (4).
  16. Insert Special Tools (31 4 012) into corresponding receptacles of Special Tool (00 2 040). Align Special Tool (00 2 040) as illustrated to front axle support. See Fig 7. Ensure when raising that Special Tools (31 4 012) are correctly inserted in rear recesses on front axle carrier. Support front axle carrier in rear area by raising Special Tool (00 2 030). Position Special Tool (33 3 274) on floor jack mounting.
  17. Remove front axle carrier screws (1) and (2). See Fig 8.
  18. Carefully lower front axle carrier using Special Tool (00 2 030). Pay attention to power steering hoses and lines when lowering. Hoses and lines must not be tensioned or bent. Lowering dimension (A) is dependent on equipment specification and is about 7.9" (20 cm) between front axle carrier (1) and engine carrier (2). See Fig 9.
Fig 1: Installing Engine Lifting Tool
G00315144Courtesy of BMW OF NORTH AMERICA, INC.
Fig 2: Resting Supports On Screw Connection
G00315145Courtesy of BMW OF NORTH AMERICA, INC.
Fig 3: Locating Support Screws
G00162764Courtesy of BMW OF NORTH AMERICA, INC.
Fig 4: Removing Reinforcement Plate
G00162766Courtesy of BMW OF NORTH AMERICA, INC.
Fig 5: Locating Nuts For Dynamic Drive
G00315146Courtesy of BMW OF NORTH AMERICA, INC.
Fig 6: Locating Lines & Plugs On Active Front Steering
G00315147Courtesy of BMW OF NORTH AMERICA, INC.
Fig 7: Supporting Front Axle Carrier
G00315148Courtesy of BMW OF NORTH AMERICA, INC.
Fig 8: Locating Front Axle Carrier To Engine Carrier Screws
G00315149Courtesy of BMW OF NORTH AMERICA, INC.
Fig 9: Identifying Lowering Dimension
G00315150Courtesy of BMW OF NORTH AMERICA, INC.
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