B7 APV

Hi, The wing V8 badge is on the B7 S4 not the B7 RS4 ..Must be a aftermarket thing you've seen on the RS4 B7.. Cheers

Hi, It depends how you drive it .. The slower you drive it the more carbon build up you'll get ..Don't over fill the oil... Don't do short journeys and red line it as much as posable.. My RS4 needed a de coke after 30.000 miles but some cars need it done every 5,000.. Good luck