Checking wastegate on cylinders 4-6

WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.

Detach vacuum line from EPPC (2), cylinders 4-6 (OUT).

Clamp off connecting line with suitable tool (1).

Attach vacuum line to pneumatic coupling (3) with Red pneumatic hose in direction of arrow.

Fig 1: Detaching Vacuum Line From EPPC

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Initial position (1) of wastegate linkage depressurized.

Wastegate valve opened.

Fig 2: Identifying Initial Position Of Wastegate Linkage Depressurized

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

Wastegate valve closed.

Fig 3: Identifying Initial Position Of Wastegate Linkage With Vacuum Pressure

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