Just a quick question. You take your car to a repair shop for let's say a noise in the A/C compressor/clutch, they do a thorough check and tell you it's a bad compressor. You go a head and let them change the compressor for , the next week you hear the same noise in the A/C compressor/Clutch general area. You take it back to them since it's still under their 3 month/6 month, etc. guarantee. They check it again, but now they tell you it's the clutch, for example. Are you required to pay to have the clutch replaced as well since it was an incorrect diagnostic on their part, or are they required to pick up all costs? Is there any law or something about this?
Thanks
P.S. Just using the A/C as an example, could be any car problem.