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Old 21-12-2016, 06:34 PM   #1
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Join Date: May 2011
Location: Swindon UK
Car: 2x Mercedes (W211 & R171)
Posts: 9
Smoke and diesel knock after warm up

Help.
While cold perfect (about 5mins). Then smoke with loads of soot in it. After further few minutes a diesel knock and missing lumpy drive. Not sure if it's fuel related or head gasket/ cracked block etc.
It's started while driving along. Fine, been driving for an hour or so then loads of smoke suddenly and a very loud knocking noise. But when cold runs without any noise so I assumed it's diesel knock.
Any ideas would great cheers.
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diesel, knock, smoke, warm


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