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Home >> BMW >> 1997 >> 850Ci >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> Engine - V12 (M73) >> Removal & Installation >> Oil Pan Upper Section >> Removal

Oil Pan Upper Section: Removal

Fig 1: Removing Cover From Cylinder Head Cover
G00053666Courtesy of BMW OF NORTH AMERICA, INC.
Fig 2: Removing Suction-Filter Housing
G00053667Courtesy of BMW OF NORTH AMERICA, INC.
Fig 3: Identifying Engine Support Tools
G00053669Courtesy of BMW OF NORTH AMERICA, INC.
Fig 4: Tightening Bolts No. 1 & 2
G00053670Courtesy of BMW OF NORTH AMERICA, INC.
Fig 5: Removing Hydraulic Line Bracket From Power Steering Pump
G00053672Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: For removal of oil pan, front axle support must be lowered. There is no need to perform a front axle alignment check.
  1. Lift engine hood into assembly position. Disconnect damper on hood, open hood fully and secure with a bolt on left and right sides. See Figure . Rotate bolts through 90 degrees. Remove cover from cylinder head cover. Remove suction-filter housing with air-mass sensor. See Fig 1 and Fig 2 .
  2. Remove top left and right nuts on engine mount. See Figure . Install Fixture (00 0 200) to Support Bridge (00 0 201), Spindle (00 0 202), Adapter (00 0 204) and Support Foot (00 0 208) and attach. See Fig 3 . Secure Hoist (11 0 000) to Fixture (00 0 200). Tighten bolts (1 and 2). See Fig 4 . Lift engine with hoist about 6-8 mm. See Fig 3 .
    NOTE: The support foot must make contact with bolts on side walls.
  3. Removing guide tube for dipstick. See DIPSTICK GUIDE TUBE  under REMOVAL & INSTALLATION. Removing lower section of oil pan. See OIL PAN LOWER SECTION  under REMOVAL & INSTALLATION. Relieving load on A/C drive belt and removing adjusting plate from oil pan.
  4. Remove bolt. Remove hydraulic line bracket from power steering pump. See Fig 5 . Remove and secure power steering pump to prevent hydraulic lines from being under tension. See Fig 6 . If necessary, remove stud bolt and unfasten upper section of oil pan. Disconnect positive battery lead connection on alternator. Remove bolt on retaining clip on engine mounting arm. See Fig 7 .
    Fig 6: Removing Power Steering Pump From Engine
    G00053673Courtesy of BMW OF NORTH AMERICA, INC.
    Fig 7: Identifying Retaining Clip On Engine Mounting Arm
    G00053675Courtesy of BMW OF NORTH AMERICA, INC.
    Fig 8: Removing Protective Tube From Oil Pan
    G00053676Courtesy of BMW OF NORTH AMERICA, INC.
    Fig 9: Removing Retaining Plate
    G00053677Courtesy of BMW OF NORTH AMERICA, INC.
    Fig 10: Removing Heat Baffle Plate
    G00053678Courtesy of BMW OF NORTH AMERICA, INC.
  5. Remove bolts and remove protective tube from oil pan. Remove bolts from retaining plate on front axle support, unclip line and remove retaining plate. Remove bolts and remove heat baffle plate. See Fig 8 -Fig 10 . Remove bracket for positive battery cable on crankcase. See Fig 11 . Remove return line for engine oil from oil pan with Crow Foot Wrench (00 9 160). See Fig 12 . Remove steering spindle from steering gear.
  6. Unfasten bracket for hydraulic line from front axle support. See Fig 13 . Brace front axle support with Hydraulic Lifter (00 2 030) and stands. Remove front axle support from engine support and lower about 2.3" (60 mm). Remove bolts inside oil pan. See Fig 14 . Remove oil pump. See OIL PUMP  under REMOVAL & INSTALLATION. Remove bolts to sealing cover. See Fig 15 . Remove remaining bolts from oil pan. Lift upper section of oil pan forward to remove.
Fig 11: Identifying Positive Battery Cable Bracket
G00053679Courtesy of BMW OF NORTH AMERICA, INC.
Fig 12: Removing Return Line
G00053680Courtesy of BMW OF NORTH AMERICA, INC.
Fig 13: Supporting Front Axle
G00053682Courtesy of BMW OF NORTH AMERICA, INC.
Fig 14: Removing Oil Pan Bolts
G00053683Courtesy of BMW OF NORTH AMERICA, INC.
Fig 15: Removing Sealing Cover Bolts
G00053681Courtesy of BMW OF NORTH AMERICA, INC.