Just go to a shop instead of wasting your money here. I told the mechanic that I always smelled coolant and the coolant would disappear within 2 weeks and I would have to refill often so I thought there was a leak. He did a quick 5-10 minute visual inspection under the hood (in the dark) and felt inside the passenger floor board and came to the conclusion that there were no leaks, but water needed to be drained from the bottom. I had to pay $150 for that "diagnostic". He came out the next day to drain the water (so he said) as I wasn't present and paid another $100 for that service. I told him I still smelled coolant and pointed out a leak to him which he replied was water. He said, if anything else related to this issue happened, he would come back out free of charge. Less than a month later my car started to overheat and the coolant had disappeared again. I text him and let him know there was still an issue and he said it would be another $150 diagnostic fee. I then reminded him what he said about coming back out free of charge and then radio silence. Went to a shop, did a pressure test and they diagnosed it as a cracked inlet housing within 15 min. THEY found the leak. What a waste of $250. I told him I had a growing fleet of cars and was looking for a consistent mechanic. Well, he just messed that up!