11 65 Connection diagram, vacuum activation (N54)

Fig 1: Connection Diagram - Vacuum Activation (N54)

Courtesy 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.