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For what it's worth, in the area where you pay, there's a sign that reads, diagnostic work is $120. Someone mentioned they were charged $220. Khalil didn't seem like type of guy who would do that. There was another customer with a BMW who was behind me in line while he was running my credit card. I asked her if she had used them before. She said yes, they were great. Anyway, that was our experience. We were very happy with them.