German Auto Service Ltd has been a landmark car-care facility in Grand Rapids for over 30 years. German Auto's highly trained technicians specialize in precision diagnosis, repair, and maintenance of European automobiles, including BMW, Mercedes, Volkswagen, Porsche, Audi, Saab, and Volvo. GAS is an authorized Bosch Service Center, and our technicians are certified by the state of Michigan, and the National Institute for Automotive Service Excellence.