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BMW N52 E90 Rough Idle Fix Cheap
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10-03-2018, 12:52 AM
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beambeam1
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Drives: E91 M Sport 325i
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For me, it required replacing both DISA valves and reconnecting the oil return pipe that had been poorly connected in the first place by a "specialist". Some good tips though, what petrol cleaner did you use?
Appreciate
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