I have a 1999 Mercedes E-320 v-6 4wd. It has only 132,000 miles at this time. It has been serviced by Pro Imports for the past five years.
I have found the quality of their work to be excellent and significantly less costly then Mercedes dealership. Their estimates have been right in line and they stand behind the work on your vehicle. Any time there was a question about a repair they were more than willing to analyze the problem and fix it when necessary.
I would highly recommend Pro Import to anyone who has a high end car.