It is highly recommended to look for a few Mercedes garage testimonials before taking your car to a random professional. Some people know general things that apply to all cars, while others are specialized in particular brands and models. Ideally, you should find one of these specialists. If you have a rare car, you can just as well hunt a mechanic who has repaired similar models before. This way, you know for sure that they are not taking wild guesses when it comes to identifying potential problems. After all, you do not want your problems to aggravate due to a poorly trained mechanic.