I am in LA and I have great MB mechanic...
Boulevard Auto Repair
14857 Burbank Blvd.
Van Nuys, CA
The owners name is Vargues and his son is Nelson. It is a family business...all trained MB mechanics..that's all they do...MBZ!!
I have had them do a lot of work on my 124 and they are honest and knowledgable.
Hope this helps...