For 50 dollars I wouldn't expect much more than writing a ticket and parking the car. That probably represents a half hour labor. I can tell you that the administration of a repair order probably costs most shops an hour worth of labor, from the write up, phone calls, cashier, to the bookeeping. If they happen to make it work also, what a deal. There are numerous protocols and if it doesn't work they will be expected to answer why. Why bother if it doesn't even pay for the paperwork.

BTW, did you try the tap dance with the door closed.

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