Auto Repair Serving San Bernardino and Surrounding Areas 

Everyone here is great! Service, Price and speed on service is excellent. Ask for Josue, he took care of my car battery replacement really fast. They are fast and friendly here. They have the best pricing for parts and warranty. Make sure you check them out! Thank you! Jose Gomez

Jose Gomez

We Needed to change our battery for our Infiniti. Happened fast and quick thanks to Leo. Really hooked it up! Cleaned the old buildup from the messed up battery and installed the new one in very little time. Safety back on the road and actually able to enjoy our vehicle. Thank ya’ll!

D.j Kodo

I’ve had great experiences coming to this battery shop and have never had any issues. The first time I came in, I purchased a used battery that lasted a long time. I recently returned and bought a brand-new battery at a great price. I even got a battery for my mother here, and it’s still running perfectly. The staff is very nice and helpful. Emerson provided excellent customer service and helped me choose the best option for my car with absolutely no pressure. I highly recommend this shop—

Tiffany Reyes

First, and foremost great customer service and for being patient with me. Thank you Leo and Emerson at the front desk. And, to Blanca and Dianna over the phone answering all my 101 questions. Also, I would like to extend my gratitude to the whole M&M staff your all amazing. I 100% recommend this place to anyone needing vehicle repairs.

Marcela Chagolla

Nicest people ever, very efficient, and saved me and my friends with a quick battery exchange. Not many places wanted to swap batteries with a cheap price, but they did it for such a low price!! I would highly recommend, especially for those who want something to be fixed quickly

Eunice Reyes

I needed an oil change; and m&m was there for me. I appreciate it. Great place. Easy to find. Really recommend getting work done here, they don’t try to bargain or tell you, you need other things for your car. I will definitely be returning

Mister Colabucci

Dealership was charging me an arm and a leg to replace my alternator. Came here and got a great price. Alex was very informative and kind. Had my car in and out the same day. A+ service, highly recommend!

Rachel Smith

Very helpful took me in last minute very clean nice establishment they also took my Groupon😌

Janiya Washington

Supervvvv service. Came in @9 out by 10am. 2 vehicles and remarkable service. Tyler is exceptional in customer service. Will be back and highly recommend for amazing prices and rapid service.

Janice Martinez

Great service! I made an emergency stop and the kind gentleman at the front desk helped me out right there. They diagnosed the problem with my battery quickly and even threw in a free part! Definitely will be recommending this spot to my IE friends 🙂

Nandi Nicolle Fuzane

Great customer service. Easy process! They took care of my Mercedes Benz at a reasonable price! Definitely recommend.

Luisa TG

I was recommended this place and let me tell you. BEST customer service 10/10. I was starting to have issues with my battery for a VW and dealership was charging me an arm and a leg for it and luckily someone recommended me.this place . They have great plans and warranties for your budget . Emerson was very helpful along with his whole team. Thank you guys for your service !

maria cambray

I was at the shop to take care of a small problem a person walked to me to find my concern and took care of me. The waiting room is very nice and clean and the technicians are helpful and very professional. Defiantly I will recommend this place.

Afjal Husein

Fabulous service!! Had my rear brakes serviced. New pads and new rotors installed on a Ford F 150 4wd. They showed me the worn parts and shared with me some other areas of concern, that we agreed could be deferred without causing a safety issue. No pressure to repair immediately The work was performed professionally and In a timely manner. The price was very affordable. It cost approx 25 percent less than a recent brake job on my other car at another shop and that job did not include new rotors

Dennis James

M&M is my go to shop to work on on my vehicles. I’m always skeptical of auto shops, but I have built a relationship with this shop. First my Jeep, then my Honda, I got good prices for the work I had done, and I wrench on my veh7, so I know what it should cost, and how long it should it, I just don’t have the time to wrench, so I bring my cars here, and I recommend them to amyowho asks me if I know a mechanic….. I tell them I have better, a full shop. Customer service is great here. Don’t g

Inda Ceja

had an excellent experience aThe staff was knowledgeable, friendly, and really took the time to help me find the right battery for my needs. The service was fast, and the quality of the product exceeded my expectations. I especially appreciated their clear explanations and helpful advice—it made the whole process stress-free. I highly recommend to anyone looking for reliable batteries and top-notch customer service!

Ricki Thomas

Fantastic service from everyone especially Leo. He insisted on helping take out and replace my battery. Very great customer service. They get you In & out. I Highy Recommend coming to these guys!!!

yxung p

Leo was amazing! Little did I know I had the WRONG size battery in my car for over a year. I had been to two repairs shops and not once did they say anything!! Leo was very helpful and even cleaned my cables! Thank you guys for great service!

synsyn Quin

Leo and Josue hooked it up really nice guys and installed my battery definitely recommend. Prices you can’t beat

B V

I just went to this store in a huge hurry, they had my battery replaced and me out the door in 10 minutes . Both gentlemen whom assisted me were extremely nice and efficent. I would recommend them for sure. As for myself I will be back , very happy with thee service

Nicole Santolla

I recently had my car repaired at M&M Alternator & Batteries, and I want to thank Daniel for the work he did. Throughout the entire time, Daniel kept me informed and communicated everything clearly. He knew exactly what he was doing, answered my questions, and made sure the repairs were done right. I appreciate the patience and professionalism 💆🏽‍♀️Thank you for taking care of my vehicle. I highly recommend them.

Jas Hunnid

jose put in my battery and tested it and they were very nice and straight forward with helping me

Orlando Ruiz

Came here to get anew battery. Everyone was super nice. Josue was the one that did the service for me very nice and professional. Totally recommend.

Esbeydi Flores

I took my car in, because it was overheating, They fixed it promptly, and efficiently! And, explained what needed to be done, at a great price! Daniel (Manager) and Alfonso are awesome! I highly recommend them!

Henry K Sawicki Jr

First, I want to thank M&M, Fontana for the amazing work that they did on my GMC. I especially want to give a shout out to three amazing employees that helped me, Armando, Tyler and Daniel. They made me feel important and assured me that they were going to find and fix the problem, which they did. Thank you so very much guys!!

Elizabeth Dean

M&M Battery and Alternator is absolutely amazing! They were fast, friendly, and professional from start to finish. Their prices can’t be beat — I got a brand-new battery for just $180,and the total came to only $200 including installation. The best part? It comes with a lifetime warranty, so I’ll never have to pay for a battery again! The staff, Tyler specifically, made the whole experience quick and easy, and their customer service was outstanding. I’m so happy to have found this pl

Christina Greene

I have to write a five star review because it’s deserved. I Have never had a good experience using Groupon or smaller shops to do my oil change, but they were great. They got me in and out in a reasonable time and didn’t try to upsell me or add on additional charges no shady diagnosis and no catches. 10/10 recommend

Aron “AA22” H

This place was super helpful and fast, I had to replace one of the connectors to my battery since it had broken off and Josue was super quick and sweet to replace it, I was in and out in just about 15-20 minutes, and what’s crazy they didn’t even need me to pay! I will be recommending this place to everyone, thank-you for your amazing service! ¡Muchas gracias!

Natalie O.

Very polite and great customer service with Emerson! He’s at the counter most of the time I am there always have a smile on his face! I recall coming here about 3 mos ago and a guy came yelling at him and he kept the same demeanor never raised his voice! I recommend this location if your in need for a battery or alternator.. Yoday Leo helped me and his customer service was a 10!

Gina Ellis

*Excellent Service at M&M!** I recently had my starter fixed at [Company Name] and I couldn’t be happier with the experience! From the moment I walked in, the customer service was outstanding. The staff were not only friendly but also genuinely helpful, making the whole process smooth and enjoyable. One of the things I really appreciated was their lifetime guarantee on the starter. It gives me peace of mind knowing that I’m covered for the long run. They also stuck to their promised ti

evellyn gonzalez

I was referred by two family members here! Customer service was great and very efficient. Genuine people here. Thank you guys! Leo helped me out and did great!

vanessa rodriguez

The service was great! I got a refurbished battery for $45 bucks $10 installation. Great place!

Tell The World Naniene Littles

Came here to purchase a refurbished battery. The owner a good dude. They have great prices and the service is on point…

Jimmy Monge

Great service! Had my AC checked and they were able to fix the issue. Alex was very informative and helpful

Nohely R

Started off a little rocky, but once manager Daniel took over, the experience was excellent. He kept me updated daily, helped navigate the insurance delays, and made sure my vehicle issue was fully resolved. I really appreciate his professionalism and commitment to great customer service.

Crystal Lynn

Our durango overheated and they were so quick to help us out and very communicative! Recommend them !

Miriam Rendon

What an amazing experience. Everyone here is so kind and helpful. I’m literally a woman who knows nothing about mechanical things. The service advisors line Daniel were so helpful and honest. Thank God!

Ann Egger

The service was exceptionally and the Manager Jorge was truly helpful and understanding. I highly recommend M&M to everyone and make sure to sign up for there awesome oil service subscription $20 montly you cant go wrong!!!

Jose Sanchez

Jesus helped me so much when it came to fixing my car. Practically made it feel brand new and also was very polite and informative when it came to the parts and labor. A place I would recommend for people who want reliability for their vehicles and great customer service.

Evelyn Yanez

M&M is a single lady’s best friend! Blanca, Daniel, and Chris always take real good care of my Jeep when I have car issues. And, the costs for repairs are always reasonable. Above all else, I truly appreciate their great customer service. Respect and integrity reigns at M&M!

Tasha.porter01@gmail.com Porter

I love this store. Super clean and great customer service. I’m recommending this shop to everyone. Thanks

Jamila Llanes

Daniel helped me a few months ago when I wanted my 1973 original equipment, Ford Pinto generator rebuilt, and today Chris helped me when I brought in my 1999 Mercedes-Benz W210 Wagon alternator. I had it back in my hands by the end of the day. The price was fair, and the service with these two gentlemen was nothing less than exceptional. I’ve used the Mt. Vernon location for decades and never had a problem. The Redlands location is a neat and clean store that stays busy. Hopefully, your expe

ZEPRAT GERNODT (ZEPRATGERNODT)

I was at another shop that did not want to work on my car and George I’m not sure if he is the owner or manage took my car into his shop and started to work on it right away and they are very affordable and super nice as well as professional. Love that they have comfy couches and bottled watter in the waiting area.

Jackeline Llort

Batteries ,AC we love it here great prices and customer service Emerson was great help and good at explaining all my questions

Araceli Martinez

Gonzalo provided excellent customer service! I was in and out quickly—he cleaned my battery cables and the area around the battery, and the whole process took less than 10 minutes. Best part: I paid less than I would have if I’d done it myself with a battery from another shop. Highly recommend M & M Alternators & Batteries Inc

Victor Rivera

I still can’t believe I got my alternator rebuilt and a battery for $90.00 this place is amazing thank you so much for all you guys and gals do for the community you are the best Iam so thankful for your outstanding service and prompt dedication to the automotive industry I wish every company was more like your shop we would live in a perfect world thank you for saving me $280.00 these are tuff times and your company makes this a better place to live in God is Good and so is M & M ALTERNATOR

Pauley Crotts

Great experience! Thank you to Emerson and the shop for fixing my AC. Will definitely be coming back for any services I need in the future!

Kimberly Llamas

A friendly and fast service, thank you Luis, its availability to help me in changing my battery, I review and try my alternate to discard any possibility, I recommend them, very professional

Erwin Guillermo

I had an outstanding experience getting my oil changed today. The service was efficient, and the technician, Alex, was exceptionally helpful. He answered all my questions clearly, explained the maintenance recommendations without pressure, and was very friendly throughout the entire process. His professionalism and great attitude made the visit a positive one. I highly recommend their service, and specifically, Alex, for anyone needing car maintenance.

Steven Moore

Luis was very helpful and a really nice guy dude told me the problem gave me options and helped me all the way threw I’m being my car back on Monday to get more work done

Christofer Alvarez

When there today to buy a rebuild battery gave them my exchange… The young Hispanic Gentleman was very cordial and respectful. Great customer service. Paid $35 for a rebuilt battery the greatest price in town with a three month warranty, not bad. Thank you, M and M alternators and batteries incorporated. Will use you in the future.

Erick Ibarra

Very satisfied !! Very honest, professional, friendly and knowledgeable staff!! Nice shop and very clean for a mechanic shop! I had my Lexus SUV and my Mercedes SL 500 serviced for the AC During the hottest days over 100° they came through for me and did a great job! I would highly recommend this shop to anyone, especially women if you know what I mean!! To the mechanic Daniel and the front desk representative Javier thank you from the bottom of my heart!! Marianne 👍❤️

marianne milita

10/10 experience. Jesus was the mechanic I dealt with the whole time which was awesome because he was very communicative and honest. I took in my Chevy truck because my brakes were very stiff and essentially not working but that was just the tip of the iceberg berg. As they got started troubleshooting the problem they came across another issue and let me know right away and what my options were, Jesus explained it in a way I could understand and felt comfortable entrusting him with my truck. At

Luis Ramos

Came too the is shop on this past Saturday July 12th, 2025 . I was Referred by CarMax – Ontario. Spoke with a Serviced Rep. Armando. Made a appointment to be here On Monday July 14th. These Mechanics really helped me out…in getting my Ford Explorer Service in Valuable time . They answered all my questions. Met Daniel , & he was Excellent in getting the rest of my answers done in a quickly matter. I definitely recommend my friends & family to come too this shop , here at M&M Alternators & R

Danny Servin