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M3 vibration

Discussion in 'E90/E92/E93 M3 (2008-2013)' started by dlbbmwm3, Mar 29, 2013.

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    2013 M3 with performance exhaust.
    M3 engine vibration caused by exhaust leak setting off O2 sensor. As this worsened, performance fell off. Thanks to Erhard BMW for finding the problem.

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