My C230 was clunking when I stopped - another garage in town actually asked me how much gas I had in my tank when it made the noise, as if it was gasoline sloshing... they couldn't even find the problem.
Ralf's team at GF diagnosed the problem in about 30 minutes - my transmission is worn out. Not only were they efficient, but they told me about an option that would save me money and buy time until I am ready to have it rebuilt (drive in the winter setting). Very cool.
When I finally do have to have it rebuilt, you can bet I'm letting these guys do the work.
Pros: cost, knowledge, quality
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