Hi, I am considering buying a used 2013 Audi Q5 with 25K miles. The day I was supposed to see the SUV the check engine light came on--the owner was apologetic and very upfront with me. The catalytic converter was replaced. The dealership could not give a good reason why this would happen. The only thing beyond normal that has happened with this car is during the winter, the owner backed into a pile of snow--and dented the underpanel that has since been replaced. Could this have caused the cat problem? What is the opinion out there of buying this knowing what we know....
Thank you!