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      11-15-2012, 09:35 AM   #8
julians999
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Drives: 2008 m3
Join Date: Nov 2012
Location: United Kingdom

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ok , dealer thinks the engine is fine.

They think the knocking noise is being caused by the exhaust which has failed internally in the back box, along with some gaskets.

i remain to be convinced, but I'll be very happy if its not the engine, as it will restore my faith that the s65 isnt a ticking timebomb.