I want to recommend M.B. Automotive in Upland as an excellent and very professional and knowledgeable service shop. I am extremely picky on who works on my cars and this is a place that has never failed me.
The owner's name is Chris and the number 909-985-4579.

M.B. Automotive, 1777 Woodlawn Street, Building F #2, Upland, CA 91786, Telephone 909-985-4579.
The owner Chris Burnett has 16 years of experience working on Mercedes-Benz.

The company previously advertised in the San Gabriel Valley Chapter of the Mercedes-Benz Club of America before it merged with the South Bay and Los Angeles chapters.

I took my 2000 E320 with 80,000 miles in for additional maintenance that included replacing motor mounts, brake fluid flush, transmission service and replaced air mass. He completed the service in less than one day.
It is best to make an appointment for service in advance. He uses Mercedes-Benz parts and checked the engine codes without any problems.
I was very happy with the service and the price that he quoted me before starting the work.