Replacement: Remount oil-to-water heat exchanger

Remove oil-to-water heat exchanger

• For full-flow oil filter replacements:

Remount oil-to-water heat exchanger.

Remove oil-to water heat exchanger

• Loosen the screws (1), (2), (3), (4), (5) and (6).
  NOTE: Loosen the lid on the full-flow oil filter so the oil flows back into the oil sump.
  • Remove the oil coolant heat exchanger from the full-flow oil filter.
  Fig 1: Oil Coolant Heat Exchanger Screws Loosening Sequence

  Courtesy of BMW OF NORTH AMERICA, INC.

  Installing the oil coolant heat exchanger

  NOTE: RISK OF DAMAGE
  Damage to the surface.

  The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage.

  • Do not use any metal-cutting tools.
  • Clean sealing surface (1).

    Courtesy of BMW OF NORTH AMERICA, INC.

  • Replace gaskets (1), (2), (3) and (4).

    Parts:  Seals

    Courtesy of BMW OF NORTH AMERICA, INC.

  • Position the oil coolant heat exchanger on the full flow oil filter.
  • Tighten the screws (1), (2), (3), (4), (5) and (6).
    TIGHTENING TORQUES SPECIFICATION
    
    

    Oil-to-water heat exchanger to full-flow oil filter
    M6	tightening torque	10 Nm

    Fig 2: Oil Coolant Heat Exchanger Screws Tightening Sequence

    Courtesy of BMW OF NORTH AMERICA, INC.
  • Tighten the lid on the full-flow oil filter.
  TIGHTENING TORQUES SPECIFICATION
  
  

  Oil filter cover to oil filter module
  O-ring lightly oiled.	Tightening torques	25 Nm