I'm driving a 2012 Audi TT RS. Life got in the way, and my driveway (not running) had the car sitting for 540 days. During this time, no drop of water entered the vehicle's cabin. Oh, DRY BONE!!! Finally, I got around to getting the vehicle in for repair. The battery was replaced, the A / C was flushed, the brakes were carried out and an oil change was made.