This week was rough for my car, I was in Russia for the whole summer, left my car in NJ under the sun. Came back from Russia - Battery is dead, replaced it, took my car back to Maine (12 hour drive) everything was fine.

Next day my Check engine light comes on, took it to a private audi mechanic (my friend) - air pump is dead.

Next day my out of nowhere there is a loud rattle noise under the hood for like 10 seconds and BAM, AC is giving very hot air but the rattle noise is gone right away.

So I had to drive with my windows down a bit, and now one of my rea windows goes down, but doesnt go up!

I mean it ran fine for the whole year (only had to replace O2 censor & regular maintnance) but c'mon!

I was just about to put 4k worth of stuff into it for 340+hp but I dont think I'll be doing it now. Question is, should I think into selling it, or things like this just happen sometimes?

P.S. Oh, not that I need it, but my ESP light is weather related, comes on when it is below 55 degrees, as soon as it is above 55, its comes back off! Any ideas about that as well?