Adolph's Autohaus has specialized in servicing German-made cars in San Ramon for over 15 years; It has been based at its current location since 1999. While shop signs advertise Mercedes Benz and BMW service, it also works on Volkswagen, Audi and Porsche vehicles. The personable shop prides itself on highly professional and honest service. The owner stocks his shop with all the manufacturer's factory tools, and claims to be the first in the entire Bay Area to do so. The business was originally established in 1980.