I brought my car in to get a specific problem fixed. They ran a diagnostic. Told me the problem and gave me a price of 2500.00 to fix. They also charged for diagnostic. I gave the ok and they supposedly fixed it. The same day I picked it up the next day it displayed the same exact problem so I called and they said to bring it back so they can make it right. Later that day they called me and said they had to do a more extensive diagnostic and charge me an additional 350.00 for diagnostic. I told them that didnt make sense and wasnr fair to me. I then agreed cause I was in a bind. The next day they told me it was a totally different problem and wanted an additional 3500..00 to fix. For a total of 60000 plus. I said so you replaced a part and performed labor on something that wasnt the problem. They told me that's what came up on computer as malfunctioning. When they dug deeper they found it was something else. I explained to them I dont have money for them to play trial and error and we need to come to compromise based in their mistake. They told me the part they replaced would have needed replacing in the future anyway. After back and forth conversation they wouldn't take any responsibility for their mistake. They said it was my fault I didnt ask for the right diagnostic, and either pay the additional or o well. So...I had my car towed to the real Mercedes dealership mercedes ...and they were a totally cheaper for same labor and price. I admit they have fix my car in the past and did good ,however this time around I feel like they took advantage, wouldn't recognize their mistake, and didnt appreciate me as a repeat customer. I would never ever go back to a place of business who dont hold their self accountable and puts this mistake on their customers and thier wallet. I do not recommend if you want a smooth transaction without any hiccups or hidden cost