N54 Knocking noise.

four7

New Member
Oct 4, 2021
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Engine Knocking

Started on a trackday, oil and fluids changed less than 2k before.
Only half check engine light occurred showing both knock 1&2 sensors.
It killed the starter motor, So I replaced that .
When running, and using a stethacope noise is loudest on the hard fuel lines to injectors.