Thread: E90 '09 328i added water to coolant
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  #13  
Old 01-18-2013, 02:18 PM
x986 x986 is offline
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You guys forget; he already knows which cylinder is bad. I agree that swapping coils is the way to go, but I'd also take a look at that plug to see if there might be a sign of head gasket failure.
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