Connections on EPPC

WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.

Connection (VAC) to vacuum reservoir.
Connection (OUT) with ring to exhaust turbocharger.

Fig 1: Identifying Plug Connections

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Vacuum activation, cylinders 1-4.

Detach red vacuum hose from vacuum unit.

Prepare T-piece (5) with vacuum lines for measurement.

Connect red vacuum line (1) with vacuum unit (2) and quick-release coupling (3).

Open shutoff tap (4).

NOTE: Observe diagnosis instructions.

Fig 2: Identifying Quick Coupling, Stopcock, T-Piece, Vacuum Unit And Lines

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Vacuum activation, cylinders 5-8.

Detach blue vacuum hose from vacuum unit.

Prepare T-piece (5) with vacuum lines for measurement.

Connect blue vacuum line (1) with vacuum unit (2) and quick-release coupling (3).

Open shutoff tap (4).

NOTE: Observe diagnosis instructions.

Fig 3: Identifying Quick Coupling, Stopcock, T-Piece, Vacuum Unit And Lines

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Exhaust turbocharger, cylinders 1-4.

Initial position (1) of wastegate linkage depressurized.

Wastegate valve opened.

Fig 4: Identifying Starting Position Of Wastegate Linkage Pressure

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Initial position (1) of wastegate linkage with vacuum pressure.

Wastegate valve closed.

Fig 5: Identifying Starting Position Of Wastegate Linkage With Vacuum

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Exhaust turbocharger, cylinders 5-8.

Initial position (1) of wastegate linkage depressurized.

Wastegate valve opened.

Fig 6: Identifying Starting Position Of Wastegate Linkage Pressure

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Initial position (1) of wastegate linkage with vacuum pressure.

Wastegate valve closed.

Fig 7: Identifying Starting Position Of Wastegate Linkage With Vacuum

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