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Removal & Installation

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2002 BMW Z3, 2002 BMW M Roadster, 2002 BMW M Coupe, 2001 BMW Z3, and 2001 BMW M Roadster. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove both wiper arms. Remove rubber seal (1) from beside protective grill (2). See Fig 1 . Remove rubber seal from protective grill. Unfasten all expanding rivets and remove protective grill.
  2. Unfasten clips and remove hoses. See Fig 2 . Carefully blow air into intake line to remove residual water from heater core.
  3. Remove screws from heater. See Fig 3 .
  4. Remove trim from instrument panel. Unfasten screws on reinforcement pipe and cut cable tie. See Fig 4 .
  5. Unfasten screws and remove front bracket. See Fig 5 .
  6. Unfasten left and right screws and remove reinforcement pipe.
  7. Discharge A/C system, using approved refrigerant recovery/recycling equipment.
  8. Unfasten nuts for evaporator connection in engine compartment. See Fig 6 .
  9. Unfasten screws from bracket (1) and remove bracket. See Fig 7 . Unfasten screw (2) and take double pipe off expansion valve. Remove left and right drain hoses (3).
  10. Unfasten screws (1) and place air bag control unit to one side. See Fig 8 . Unfasten screws (2), remove bracket and lift out A/C-heater unit.
  11. To install, reverse removal procedure. Replace "O"rings. Tighten screws on double pipe to specification. See TORQUE SPECIFICATIONS  .
  12. Evacuate, charge, and leak test A/C system. Fill and bleed cooling system.
Fig 1: Locating Rubber Seal Beside Protective Grill
G00273108Courtesy of BMW OF NORTH AMERICA, INC.
Fig 2: Locating Hoses
G00273109Courtesy of BMW OF NORTH AMERICA, INC.
Fig 3: Locating Heater Screws
G00273110Courtesy of BMW OF NORTH AMERICA, INC.
Fig 4: Locating Screws On Reinforcement Pipe
G00273111Courtesy of BMW OF NORTH AMERICA, INC.
Fig 5: Removing Front Bracket
G00273112Courtesy of BMW OF NORTH AMERICA, INC.
Fig 6: Unfastening Nut
G00273114Courtesy of BMW OF NORTH AMERICA, INC.
Fig 7: Locating Expansion Valve Brackets & Pipes
G00273115Courtesy of BMW OF NORTH AMERICA, INC.
Fig 8: Lifting Out Heater
G00273113Courtesy of BMW OF NORTH AMERICA, INC.
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