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11 65 Connection Diagram, Vacuum Activation (N54)

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Fig 1: Vacuum Hose Connection Diagram
G06174879Courtesy of BMW OF NORTH AMERICA, INC.
  1. Vacuum hose connection vacuum pump to vacuum accumulator cylinders 4 to 6. 
  2. Vacuum accumulator, cylinders 4 to 6.
  3. Vacuum hose connection VAC on EPPC (electropneumatic pressure converter) cylinders 4 to 6 to vacuum accumulator.
  4. Vacuum hose connection OUT on EPPC (electropneumatic pressure converter) cylinders 1 to 3 to T-piece.
  5. Vent line between connecting line 4 and 6 of wastegate units.
  6. Vacuum hose connection OUT on EPPC (electropneumatic pressure converter) cylinders 4 to 6 to T-piece.
  7. Vacuum line branch T-piece to vacuum unit (wastegate valve) cylinders 4 to 6.
  8. Connection vacuum unit (wastegate valve) cylinders 4 to 6.
  9. Connection vacuum unit (wastegate valve) cylinders 1 to 3.
  10. Vacuum line branch T-piece to vacuum unit (wastegate valve) cylinders 1 to 3.
  11. Vacuum hose connection VAC on EPPC (electropneumatic pressure converter) cylinders 1 to 3 to vacuum accumulator.
  12. Vacuum accumulator cylinders 1 to 3.
  13. Vacuum hose connection vacuum pump to vacuum accumulator cylinders 1 to 3.
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