We have been a customer of 603 Mtech for 2 years now, and I have to say, Mike and his team are simply the best in New Hampshire. They’re friendly, knowledgeable, and always go above and beyond to keep our Mercedes vehicles running smoothly. Whether it’s routine maintenance or a tricky repair, they’re always up for the challenge and get the job done right. Plus, their honesty and transparency are truly refreshing. I wouldn’t trust my cars with anyone else. If you’re a Mercedes owner, you need to check out 603 Mtech!

Went in for a peace-of-mind off cycle transmission service for my 2015 E63S AMG which included filter, fluids and gasket change. All at a great and very reasonable upfront price. Above and beyond what was not on my service request was a brake pad sensor change out (I had purchased and hadn’t installed yet) and correcting the rear brake pad retention clips due to my incorrect DIYing, done at no additional charge. The lads over at 603 MTech are absolutely fantastic, would recommend them consistently 10 out of 10.

Thanks to Mike And the guys at 603 MTech Autowerks, I called the shop to see if they can replace my upper oil pan due to me cracking the pan from over tighten the oil drain bolt. I had to go buy JB weld to seal it up since the crack was so bad the Jb weld extreme heat didn’t hold up it was still leaking a little. When i talked to Mike he gave me an exact date when to drop off and it will be ready by. While the car was there they worked on both my front axle too. They are like clock work⏰, they did a professional job and Very good quality work. The staff there are very professional. They also gave me a loaner which was nice. I will do business again💯. Not to mention the shop is an hour away from me, well worth it. Highly recommend.

I took my 2020 Benz to 603 MTech Autowerks for the first time today. I needed an A-Service and I had some concerns around my front brakes. I was very impressed with the service. The mechanics were friendly and knowledgeable, and they quickly and efficiently completed the work. They also took the time to explain the work that they were doing and to answer any questions that I had. I would highly recommend 603 MTech Autowerks to anyone looking for a reliable and affordable auto repair shop.