Mercedes Benz repair: Electric glitch?, mercedes benz dealer, reseda boulevard

Question
My Los Angeles area 2003 C230 Kompressor Sport Coupe with 60,000 miles has been having intermittent electrical problems the past few weeks.  About every other day while driving the ESP warning light may go on.  Sometimes the message on the display reads break light maintenance (but I checked lights and all was okay); or the power to instruments on the dash including CD player, directional signal and headlights goes dead (not very safe when it occurs at night!).  After pulling the car over and restarting the engine, the problem is resolved temporarily.  As my luck has it, my Mercedes Benz dealer has yet to duplicate any of the symptoms when taking a test drive.  Any idea on the root cause?  Thanks in advance.

Answer
Answer:
You need hands o help.
They will need the car for roughly a week, their best master technician, must be convinced to drive it over a weekend plus to and from work, experiencing the issue more than once.

Note:
With todays litigation, it is difficult to find shops/technicians willing to do this...

I suggest you try
Mr MB Motors
5557 Reseda Boulevard
Tarzana, CA 91356
(818) 708-8086

Here are other shops that may be closer to you.

California
http://www.mercedesshop.com/shopforum/forumdisplay.php?f=33