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      06-17-2012, 03:51 AM   #5
Dr Dave
Zummerzet Zyder Drinker!
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Drives: '06 330D Le Mans Blue
Join Date: May 2009
Location: Somerset

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Yep it's diesel knock Baz, just the way the fuel system is set up and working. Our new trucks make the exact same noise, the drivers were all for dropping them into the workshops but I told them it was just diesel knock, it's normal.