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M&M Auto Techs

4.5
(1,507 reviews)

Business Details

(909) 888-0907
https://mmautotechs.com/san-bernardino/

About

Auto Repair ShopAuto Air Conditioning ServiceAlternator Repair
When your vehicle needs professional attention, M&M Auto Techs provides comprehensive auto repair services right here in San Bernardino, California. Our experienced technicians understand the unique driving conditions San Bernardino residents face, from navigating the busy streets near downtown to handling the demands of desert-climate driving. Our facility serves as a trusted automotive partner for drivers throughout the Inland Empire, offering everything from routine maintenance to complex diagnostic repairs.

Location

M&M Auto Techs
121 North Mount Vernon Avenue, San Bernardino, CA
92410, United States

Hours

Monday8:00 AM - 6:00 PM
Tuesday8:00 AM - 6:00 PM
Wednesday8:00 AM - 6:00 PM
Thursday8:00 AM - 6:00 PM
Friday8:00 AM - 6:00 PM
Saturday8:00 AM - 4:00 PM
SundayClosed

Reviews

4.5
1,507 reviews
5 stars
1,204
4 stars
132
3 stars
51
2 stars
25
1 star
95
  • CR
    Coony Raccoon
    1 day ago
    3.0
    I want to thank you for the work done on my 2006 Saturn Vue, alternator replacement. Just one issue, there wasn't an engine light on when it came in. The mechanic that did the work forgot to reconnect a sensor. The "in-take air temperature sensor" causing a P0113 engine code. I put the connector back on the sensor and cleared the codes. Might I make a suggestion, if there is no engine codes when it comes in, but has one after the work, maybe the mechanic needs to check his work better. This is the way I found it when I got home after checking the codes.
  • LC
    L Croke
    1 day ago
    5.0
    Been a customer there for over 25yrs affordable Batteries which they stand by and Honor their warranties, Batteries have always held up even when my alternator have been bad, I highly recommend their business
  • YE
    Yesenia Escobar
    Sep 30, 2026
    1.0
    Lleve mi Vehículo para que arreglaran el aire acondicionado la primera vez que lo revisaron, aparentemente lo arreglaron, pero no, quedo bien, según me dijeron que habia que cambiarle la válvula lo hicieron y tampoco quedo bien, he gastado demasiado y según tiene un año de garantía pero es molesto que si lo llevo de nuevo me vuelvan a decir que tengo que pagar algo más, se a pagado para un buen trabajo no para que lo dejen con desperfectos.
  • SB
    shavon Board
    Sep 28, 2026
    5.0
    My time need and I didn’t want to spend a lot of money or did I have a lot of money to get a battery my battery died at the wrong time and I had maybe 25% left. They were so kind they allowed me to check it and then after that, they told me how much it was and I put a brand new battery in on the spot I’ve been rolling ever since I absolutely love them. They are a godsend and in my price range. All I have was $100.
  • NN
    Nana
    Sep 26, 2026
    5.0
    These guys are a life saver and their prices are REALLY good as well. I bought a brand new alternator to replace the OEM one failing on my car. I had my mechanic install that one and it drove fine for a while until the brand new alternator suddenly failed and I had to get my car towed after it died right at the top of the Cajon pass. When this happened, most the mechanic shops were closed for the day so I had the car towed to my boyfriends house since he lives near this shop. I charged my battery and figured it wouldn’t have an issue getting me 2 miles down the road to the shop but boy was I wrong. The alternator completely failed on the way to the shop and I lost power. The car BARELY made it into their driveway. I was so stressed out but the employees were super helpful and helped me get the car into a parking spot. I have to return the broken new alternator so I brought my old, broken OEM alternator and they were able to repair it no problem! I paid a few hundred bucks but I also paid just a little more so they could install the alternator and a new belt for me as well. They don’t have to install it for you, if you wanna save money on installation then you can have them rebuild it and they’ll let you take it home to do yourself. They also have REALLY good ac recharge prices that include the vacuum and leak check. Less than what I paid at my regular mechanic. I would highly recommend this place. I come from a family of car mechanics and body men and I know a good shop when I see one. These awesome people here will take care of you. 10/10

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Certified October 11, 2026Yext Knowledge Graph
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