So purchased my car through a Dealership, got the warranty & the timing belt snapped. They sent me to my VW/Audi dealership who I've had problems with sense I owned my VW. Well they did the timing belt, water pump, & replaced 8 valves. They put it all back together & 45min of letting it idle it started mis-firing, mind you they had only test drove the vehicle for a total of maybe 6 miles. Now there saying its nothing they can fix, the warranty company needs me to give the the OK to work on it, but they say iuf its a compression problem its all on me. The dealership says its sounds like a psiton problem, I'm just wondering isn't this something they should/could have notice with the engine apart? Plus does anyone know what I should do? I'm still paying a loan for this car & VERY frustrated. Any HELP would be appreciated. Thank You for reading