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What is this knocking sound!

E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.

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Tue, May-29-2012, 02:07:17 AM

#11

lucad2

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Join Date: May 2011

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'05 BMW M3

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Location: Woodbridge

Update. Took the valve cover off and found 2 things, corrosion on 2 lobes ( i started a new thread about this since a quick answer before I put the cover back on) and I noticed this also, not sure if it may have anything to do with the noise. ImageUploadedByTapatalk1338257233.607883.jpg

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Discussing What is this knocking sound! in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)