You turn the key or press the start button, and instead of the smooth purr you expect from your Audi, you get a click, a grinding noise, or nothing at all. A faulty starter motor is one of the most common reasons an Audi refuses to start. It also tends to show up at the worst possible moment. At Audi Engines, we see starter motor problems on everything from older A3s and A4s to newer Q5s and...