5000CS Quattro. Car has been sititng for past month. Started right up and ran fine but after about 10 minutes, began to chug to the extent that I had to drive on the shoulder. Seemd to improve a little as I drove further. Also, 5 year old fuel pump that has always been loud became even louder while running rough. When trying to start about 2 hours later, almost new battery comple tely drained. Jump started OK, drove to mechanic, battery dead again. Alternator checks out OK
Oct 25, 2008 at 9:08 AM