Your Mercedes-Benz Metris or Sprinter is the finest work van on the road today and at TriState Vans, Mercedes-Benz of West Chester we want to ensure it remains that way - from the first mile to one million miles. At TriState Vans, Mercedes-Benz of West Chester we only employ factory trained and certified technicians. It is a very high standard reserved only for those technicians who meet the demanding annual training criteria of Mercedes-Benz. Master Certification is a level of recognition that is hard earned and sets the benchmark for the very best in technical and diagnostic skills.