text: I am going to make this a long one since it caused me some unnecessary basically saying their diagnose of my problems where very very bad If you have time read on nnIve been in the car business for more than years now and I have had my share of experience with all kinds of mechanics If there is one rule that I have found to be true is that a cheap mechanic is not a good mechanic a good one will not be cheap But these guys are not good and definitely not cheap I have an Audi a Benz and both had some issues So I was looking for a reliable mechanic I saw these guys on Yelp and I was blown away by the reviews positive reviews for a mechanic Wow I had to check them out So I went with the Audi since it was due for an oil change I also told them to check why the battery fuel cap light came on when you start it in the morning Next day I pick up the car and was told the alternator is good but I needed a new battery for sure So I did just that Went and got one and replaced it Well that did not fix my problem but I did not make a big issue since these things happen After all everyone else says they are great nnNow it is time for my Mercedes that is stuck in st gear and will not shift I had charged the auxiliary battery at Autozone in hopes to fix it myself it did not I read that this is one of the most common reasons what causes the limp mode In the process I switch the cables backwards so it triggered the battery light I towed it to the shop and asked them diagnose and fix the issues After diagnosing they said I need to replace the auxiliary battery and clear the lightcodes and then they can see why transmission is not shifting Quoted me for the battery and programming I went picked it up at the dealers and asked a Mercedes mechanic whether an auxiliary battery needs to be programmed or not He said never If the codelight is still on just reset it with an OBD scanner which I do have and that is it I told the guys at CARS that They said No no he does not know what he is talking now about we still need to charge you for programming OK no problem do it You never want to argue with the guy that is about to fix your car or cook your meal They called me said transmission is bad At least labor to replace it I know enough for a case this big to get at least a second opinion So I went to Doctor Benz a shop that specializes in Mercedes cars and described the problem He raised a red flag if they are charging for diagnosing they should at least tell you what exactly is wrong in the transmission In this particular car you almost never change the whole transmission He wanted to open the transmission and see what is wrong that is used towards the total if I decided to fix it with him With worst case scenario total if the module is bad most of which is labor an hour As I left from there literally the next building there is a transmission shop so I just stopped by to get a third opinion He repeated the same thing but he was going to diagnose it for free So I towed the car to his shop to find out that CARS did not even clear the battery codes They sure charged me for it That is because it was not the battery it was just a damn fuse Once we replaced the fuse the code cleared Two replaced batteries for absolutely no reason I also called LKQ to check for the price of another transmission and see how reasonable is CARS with that quote LKQs price for a transmission with k miles With k miles Now to be fair I do get discounts on parts at some places but not a discount a few hundred the mostnnI gave the second star because they all have a friendly attitude advised that since I already replaced the fuel cap the next thing to do was to replace the purge valve That fixed the fuel cap problem