On July 2nd my son broke down on the freeway and NTB was the closes mechanic. It was a minor leak from the bracket that holds the reservoir tank. The car was starting to overheat and needed the part fixed. My son pointed out what was leaking (part of a bracket) and said he didnt want a diagnostic run on the car. They explained they had to run a diagnostic because they would be liable if the car broke down when he left(lied). They couldnt find the bracket so I bought it and brought it to them. When I picked the car up it was almost $700.00 for a $150.00 at best repair. After I paid they told me the car was still overheating and I about fainted. They told me they didnt run the diagnostic after all and would take that off the bill and then explained they only fixed the leak (again lied). the bill shows they changed out hoses that didnt need changing according to BMW and a reservoir tank. Hoses that had absolutely nothing to do with the leak. Called headquarters to discuss the problem and told me they would call me back and never did.