Black soot on Rear Bumper and Trunk - any Ideas?
02-06-2007, 02:41 PM
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Black soot on Rear Bumper and Trunk - any Ideas?
I am having some problems with a black soot on bumper up the back of the trunk. The paint color is 5 shades darker on the back end. I am just wondering if this is normal or if the weather here in Wisconsin is contributing (it has been -15F the past 4 days) I just washed the car on Thursday and by Sunday the rear was black already. Car goes in on Thursday to have a check-up any ideas before I go would be helpful
02-06-2007, 03:14 PM
#2
AudiWorld Super User
You're gonna burn richer, longer in these temps which can contribute to a 'sootier' exhaust.
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