buildup

  1. flowrider

    320 CDI excessive soot buildup.

    Is it normal for the exhaust tailpiles to turn black with soot just a week after being cleaned, the rear bumper is also covered in soot just above the tailpipes. I also notice when the engine is turned off there is smoke coming out of the exhaust for a few seconds. My Audi TDI didn't turn the...
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