I was looking for a new smog shop after a bad experience elsewhere. I was pleasantly surprised at…read morethe great price, speedy service and friendly owner/ tech Francisco. I will be back! Thank you!

I was in need of a smog check. I called and spoke to Jose Robles. He got me in and out fast and…read moreFriendly. I would recommend him. He also gave me a great recommendation for lunch. Thank you, Jose.​

Great customer service reasonable prices.would recommen.Work is done in one day no need to leave…read moreyour car overnigh.

Through a series of unfortunate events my sister ended up stranded on the Mexacali side of the…read moreborder with a blown engine and a dying cell phone. She was just able to call me. Although MTZ could not assist her directly they put me in touch with a company that found her and was able to tow her stateside. MTZ was amazingly concerned and helpful. Not that anyone ever wants to find a tow company but if you ever need one, I strongly recommend MTZ. I can only imagine the care they would have taken had we been paying customers!

From the owner: MTZ Co. Is at your service for Diesel mechanic, Towing, Tire repair, Tires, SMOG check, Parking,…read moreTrailer repair, Welding, Truck wash, 24/7 Mobile Service

If there were a half star rating I would have given that. I was passing through El Centro on my way…read moreto San Diego when the transmission on my car went out, my car sat there at the shop for seven months. First it was he didn't have enough employees, then the wrong transmission. I went down once a week to check on the progress, both seats were reclined back and I saw bags from take out restaurants left sitting in my car. They couldn't find the time to fix my car but they found the time to use my car as a break station. NOT COOL!!

I hate giving bad reviews honestly but this one seems well deserved. We live in San Diego and we…read morestore our RV in Glamis during the riding season. The California registration is due so we were going to get this smogged in El Centro. We have called this guy three times and he is just so flakey. The first time we called we asked if he was open on Sunday. He was like 'No, but if you call me I will come down and open for you". So we called on Saturday to see if he was still up for it. Nope, come in on Monday dude. He also asked us what year the motorhome was at that time and we told him it was an 81. So, we forgot the paperwork but were going to see if they could still smog for us. we called again and hes like "dude I cant work on anything that old". WTF man.... you knew yesterday how old it was. We are grateful that we didnt drive all the way there to get it done and THEN have him flake out on anything from the hours of operation to what he will and wont work on. We are going to take it elsewhere. The other people we called seemed really nice and told us everything we needed in the first call.

Nico is an expert on Volvo repair. He was referred to me by Santa Monica Smog check…read more He checked my 26 year-old Volvo and called with a quote suggesting things that had to be done asap (oil change), tune-up, and other issues that could wait. He is my Volvo mechanic from now on.

Nico, gracias para todo! My 7 year old mini is running like brand new thanks to this mechanic. He…read moreis very honest, will explain AND show you exactly what is wrong and WHY he's replacing what he is replacing. Took care of my mini after a mechanic in San Diego completely botched my car by putting parts that weren't even compatible! Nico took care of my spark plugs, coils, air filter and checked over the rest of my car to make sure everything was in good condition. I trust this mechanic working on my foreign car. Will be my go to from now on! Glad I found you, Nico!