Sometimes at start up my Audi runs rough. Kinda like blah blah blah blah blah blah. How do you type out a noise??? No dash lights. Seems fine after driving. It does it warm or cold. 35K miles and I checked the air in the tires recently. I was planning on plugs and fuel filter but haven't had time to get parts. Anyone have an idea on what would make it run rough at idle?