May be a combination of oil leak and soot!

Velma 82diesel 1.6 na westy

On Jan 14, 2012 2:55 PM, "Tom Hargrave" <thargrav@hiwaay.net> wrote:

I've owned a long string of Mercedes, 17 to be exact, and most were diesels.

And from my experience:

Black soot on the back = unburned fuel.
Grey spots on the back = oil leak, usually caused by a bad seal and/or blow
by.

I'd say chase down your oil leak.

Thanks, Tom Hargrave
www.stir-plate.com
www.towercooler.com
www.kegkits.com

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