I would support what doc said and suggest a independent thta only works on atleast German cars. They are all over invest the time and look. Look at their parking lots.

But beyond that I can't tell you how many times I've had a nostart dropped off by wrecker only to start the car up and drive it for days.

If you have in fact a really dead car it will probably be easy for a real tech to deal with. Intermittants are hell.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician