loss of power
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27B8 - Differential Pressure sensor intake manifold, Plausability
2865 - variable valve gear power limitation in limp mode
285E - Variable valve timing control unit internal failure
Most likely you have a failed valvetronic control unit.
I hope that is helpful, please let me know if you have further questions, or if I can clarify anything for you.
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The VVT control unit is at the back of the engine compartment, per this image: CLICK HERE TO VIEW IMAGE and then press download to save a copy
There is no such thing as a "wiring diagram" for this car. BMW only has a live wiring database that must be clicked through circuit by circuit and zoomed, scrolled, etc.
There is no single wiring diagram that they provide.
Please let me know if you have further questions.
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