The "overhead" of owning a very complicated car is that the vehicle is
too far advanced for its service component, making YOUR "ownership
experience" a disappointment,a common complaint with luxury goods.
WE want cutting edge (some say bleeding edge) goods, but like many "hot"
goods their manufacturer, software writer, government etc. pushes the
product out the door and has US do their product testing.
As to the roadside "mechanic", he was no mechanic, but a guy who could
jump a dead battery or put some gas into an empty tank. Don't judge the
entire shop by his crudity. Suggest you quickly establish who broke what
so that YOU don't have to pay for the broken part(s) and their
If you pay an independent shop out of your own pocket YOUR risk is
having MBUSA claim that YOU voided THEIR new car warranty. In short,
you're trapped in their system so work with the local dealer, and the
MBUSA zone manager if necessary.
Suggest you e-mail the Service Manager, relate your three experiences
and your concern about the impending repair. If he doesn't respond well
then call the MBUSA zone manager.
M-B isn't unreasonable, they pay dealers for doing warranty work so the
dealer shouldn't be reluctant - if the dealer knows MBUSA will pay their
claim. It always comes down to money; who will pay?