Originally Posted by aluni2230

Nicely put. Like I said, there are good and bad technicians. I think if you bring this up with the dealer they'll know - ask them who the technician was who worked on your car. Their diagnosis was wrong. It happens in all professionals. Sometimes it's just pure incompetence and sometimes it is negligence. It's hard to know what was the issue here, but you should definitely let your service advisor know your experience.