I took my car here because of a "dinging" noise I kept hearing. The car is pretty new and still under warranty, but the dealership folks told me it was nothing to worry about. I wasn't convinced, so I took it to John's, based on a recommendation from a friend. I'm glad I did! There was a screw missing from my oil pan, causing it to drag on the ground. It took them all of a minute to find the problem and another 15 to fix it...for FREE. I'll definitely come back if I have another car problem. John's specializes in German cars, like Audis and VWs.