We are a Mercedes Benz Master Certified shop in Rancho Cucamonga. Ask that question to other shops. We have all the updated information that the dealerships have, we can perform all repairs that the dealerships can do at a lower price with the same, and possibly better quality work.. in a more timely and efficient manner...Everyone that visits our shop is happy with our repairs and the advice we give our customers. We work on other models due to the fact that our customers love our work and prices. We service all their cars in there household, and or company... Thanks hope to hear from you soon..