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      02-14-2013, 01:55 PM   #13
Blzn335
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Drives: E92 335i Sport Premium Manual
Join Date: Feb 2012
Location: Phoenix

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I had mine also done under warranty and maintenance plan but I also had miss firing under load. Replace plugs, injectors, and both fuel pumps then dealer agreed to clean valves after BMW approval. Mine was done at 60k miles.