I just had to replace a thermostat on my Hyundai. The car started to overheat on the way to work and I brought it to the garage next door to my office. My oil was fine and the radiator fluid was at an ok level. I was charged $178.00 for the replacement thermostat. In reality, isn't this just a matter of unscrewing the old radiator cap and installing a new one? This same repair guy told me it would cost in the area of $200 - $400 to put my passenger-side electric window back on its track. (The $400 is in case the motor is gone) I told the owner that I knew it was the window coming off the track because it happened once before and if it was the motor, the window itself wouldn't go up and down. (The window cocks to one side sometimes when it is opened and I have to manually re-seat it). Does this guy sound exhorbitant to you? Thank you!