Had a great experience at MM Shop! Josue was very helpful and informative when I needed assistance with my battery. He took the time to explain everything and made the process super easy. Their prices are also really affordable. Definitely recommend checking them out! read more

When I first started coming here I knew I would be a customer for life. I am glad to have the experience with such a talented company. I suggest the M&M shop for car help; where saving you from headache troubleshooting can be appreciated. read more

M&M Alternators & Batteries Auto Care - Come on a tow truck and leave on a road trip. - Auto Repair Near Me - San Bernardino, California

They give great deals on oil changes. I would recommend if you're interested in saving. read more

M&M Alternators & Batteries Auto Care - Oil Change in progress - Auto Repair Near Me - San Bernardino, California

terrible. lost of money and time. my appointment was at 12 got my car around 5pm and not even 10 minutes away my car started slowing down. none of my issues I paid for was resolved. they told me to come back I come back and then got told to leave my car. I didn't get any updates. I had to call around 12 to get an update didn't get my car back till 3pm just for my car to have the same issues. $667 for nothing all a scam. I'm so upset I gave this place a the benefit of the doubt. don't come here it's a waste of time read more

Do not go here. I brought my Honda Accord 2010 model in for an appointment to rebuild the alternator. My appointment was at 10 AM, but they didn't finish until around 3 PM--I waited there for hours with no proper updates. When I came to pick up the car, it wouldn't start. They jumped it for me, and when I asked if that was normal, I was told everything was fine. I drove home, and shortly after, the car was completely dead. It wouldn't start at all--not even with a jump. I had to get it towed and later found out the battery was completely dead and needed replacement (which I had specifically asked them about before leaving). To make things worse, they seemed nervous about being reported and oddly pushed for cash payment, which felt very unprofessional. I ended up paying with debit. Overall, this was a terrible experience--poor communication, questionable practices, and a complete lack of accountability. The only positive is that the alternator itself appears to be working. Would not recommend. read more

Terrible place. Genuinely do not go here. Made an appointment for 8 am specifically for a new alternator. My husband did not receive any information whatsoever besides the price, which was quoted at $235 over the phone and on here. Waited FIVE hours for this process and come to find out they rebuilt the alternator which is NOT what i wanted. I had called someone over the phone and they said they informed my husband about everything that: there was no new alternator available and that it would take four hours. By this time it was the fifth hour. My total was $295. And, on top of that they damaged my hood. If yall were gonna scam me yall could've at least done it fast and damageless. read more

M&M Alternators & Batteries Auto Care - Damaged near headlight - Auto Repair Near Me - San Bernardino, California

I am so happy that I came here. I came in to get a oil change. Everyone here was very nice. I didn't feel like I was being ignored by anyone they were patient and I love how even the customers that were coming in patient that tells a lot about a place. I was informed when I called that I would be waiting about two hours because I didn't have an appointment but they got me in and out of there within an hour so I am truly grateful for that. I also like that they told me what other maintenance would need to be done on my and the that they gave so much for your amazing customer service and work. I definitely be coming back here. read more

Great price, quality, and Lea was amazing !!!! Very honest , great customer service, and helped me above and beyond !

If I could I would leave zero stars fucking terrible I brought a alternator from this place and told them my make and model and they still gave me the wrong one i didn't even put the alternator in the car I call back to see if I could get a refund and they still say no this fucking company is HORSE SHIT DONT BUY FROM HERE AT ALLLLLLLL read more

Really reliable place. Super helpful, nice! I got my alternator fixed here and i haven't had any issues. I don't feel like i'm getting scammed here. Definitely recommend, come on down. Shout to Leo for helping me out. Come on down for reliable batteries and alternator. read more

Leo he was amazing fast and did a great job putting my battery in my car I really appreciated everything you did Leo and how fast n quickly and the extra advice on getting a membership . read more

M&M Alternators & Batteries Auto Care - Battery n car - Auto Repair Near Me - San Bernardino, California

I would not recommend this place to anyone I went to get a battery and the person who installed my battery sat down the old one on top of my water hose and tore it and when I called to talk to the manger he was extremely rude and not helpful at all told me he didn't have to help me sad that you go in to get a battery and now having to replace my hose lucky I made it home with all the coolant coming out all because they are CARELESS This is no way to run a business read more

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this place is great. i got dropped on a rough side of the street after breaking down and ran over to m&m and they got me back on the road by close on friday night. didn't charge me for a new part they fixed the old one. i really appreciate that there are still honest kind mechanics out there like m&m read more

Very Bad experience. Had my alternator rebuilt here at M&M alternator shop for my 2011 Honda truck because the alt bearing was making noise, got it back the same day and reinstall the rebuilt alt. Drove down the street and the alt. Light came on when I would come to the stop light. Took alternator 3 times yes 3 time I called them for a refund I was told no refunds all sales final. What a lost of money and time. 3/20/2026. Blanca per your response , you said I should have taken the truck in so your mechanic could check it , I was told over the phone to drive the truck there so it could be checked and your Mechanic said the rebuilt alt was bad and that was on the second time I was there, so he gave me a third alternator that was bad also the bearing was making noise and the alt light was on. So I called to ask for a refund and I was told to read your receipt that read all sales are final not even a sorry. Went else we're to buy the alternator and it worked fine read more

Great price on batteries, I've been going here for past 3 years and the batteries last the amount of time they say. If you're in a pinch I would recommend going here also. They're helpful and will remove and replace the battery for you for only $10. Definitely helps when you don't have tools handy. read more

Great service brought a battery and got my prong changed for free the install was fast and quick

Bout and alternator from the man charged me 130 said he had to build one went and got the alternator done at a shop for the shop to tell me the alternator that I got is no good ! When I tried to return the alternator to them they told me that they won't take it back because it has been put in already it looks used . 0/10 DO NOT RECOMMEND! read more

I have been coming here for year for batteries and alternators just keep your receipts like it says on the receipt or ur fucked but thy will honor it it u have ur time and time again Keep the paper safe I let ppl know about this place all day I've never had no maintenance done or anything of that nature read more

don't buy battery's from them they don't even last 2 months and they won't help you if you don't have a I repeat it's not worth it. Just go to AutoZone. read more

great service been in business many years bought an alternator was great would buy again come and check there work shop store

BEWARE!!!!!! DO NOT GO HERE!! Against my better judgment after reading yelp reviews, I still decided to go by here. Vehicle was running perfectly fine but when I got my oil changed last week, they said the battery was running low. Drove there and bought new battery they installed it. When I get in my car and turn the key all of my warning lights start flashing . I turn my car off and walk inside to speak to the manager to let him know that I haven't even drove away yet, and all the lights are flashing, the first thing he says " the paperwork you signed states that we aren't responsible for anything" These guys are shady, and when you sign your receipt, somewhere in that small print is signing away the responsibility for them. DO NOT GO HERE. They can cause serious damage to your vehicle and assume no responsibility. I didn't even get out all of my words before that manager cut me off to let me know that they are not responsible for anything. I would never go to any business ever again that tells me that the work and services they provide hold zero liability if the break or cause damage. These guys are ROOKIES and that's why the manager makes sure you sign liabilities away, because they have NO FAITH IN THEIR TEAM. read more

Quick update on this my claim went in my accts favor I got my money back, & filed a complaint t with the better business bureau. I will keep complaining on this to them until they shut this place down or set them straight. I'm that KAREN. So for now don't go here they sell bogus batteries read more

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I have done some business with this company on both of my Nissan Maximas. They are prompt, friendly, and do what they say. I needed to warranty an alternator that was installed. They did just as they said they would, They reinstalled an alternator on my car, no questions asked, in record time. I will continue doing business here. I've also bought batteries here. i will refer all of my friends. read more

Tried charging me$50 just to install a used battery in my Jeep do to it being under my front seat easy to get to. Other places charged me$15. Wow what a rip off. Won't spend my money on places where they take advantage. Sad read more

Ojala pudiera darles 0 estrellas, mi carro NUNCA habia dado fallas en el aire acondicionado, me hicieron una "inspeccion" antes de recargarlo y NO TENIA NADA, lo recargaron y una semana despues dejo de funcionar, llegue a reclamar y lo unico que me dijeron era que tenia que PAGAR 400 DOLARES para arreglarmelo, y aparte de eso tuvieron el CINISMO de decirme que me estaban haciendo un descuento de 65.00 por lo que ya habia pagado antes por recargarlo, DONT WASTE YOUR MONEY, TIME AND ENERGY HERE! fui al que esta en la Cadena Dr in Riverside, mi tia tambien llevo su carro dos semanas antes que yo Y LE PASO LO MISMO despues que a mi, no creo que sea casualidad que a muchos nos este pasando esto, YO SI VOY A BUSCAR JUSTICIA Y PONDRE UNA QUEJA! read more

If I can give them 0 stars I will !!! That's how low this place is !!!!! They kept my car without my permission !! it was my first time there and this shit happen ! I went their to get my ac fixed with my brother and they were charging me 60$ plus the $30 for the inspection, I was cool with it I guess. And then they told me it was going to take 1 hour ! I was fine with it because I had time to get it fix since I was out of town visiting. After they took my car to start working on it, we stayed there about 10-20 mins so I decided to call someone to come and pick us up since people were coming in and out of the shop. JUST KNOW !! that when my brother and I left we let them know were leaving and to just give us a call and they didn't mention what time they were going to call or if they're halfway done, nothing. All he did was say " OK " Always, 1 hour later we get a call saying my car was done . So we started to rush over there and then they told us they were about to close!!!!!! Then, they call again to telling us they are close !!! Once we got there my car was locked up and no one to be found!!! Who the hell does that !!!! We told them we were going and they didn't tell us what time they were closing or at least wait for us!!!( I don't mind paying a bit more to wait for us) .They have no sign that says their time ! Or any phone number !! it was hard to find on maps. I been calling them and nothing. We asked everyone around the place if they know the guy and they all said NO ! I live in LA and now I can't get home because they have my house, job, and car keys !!! I had to call off work because they have my car and i also had to sleep over night in someone house !!!!!! SUPER NON PROFESSIONAL WORKING ENVIRONMENT!!! P.S this happen 5/14/22 around @3 And today 5/15/22 around @9, I went back to the shop to see if (maybe) someone would've been there waiting me for but of course, NO ONE WAS THERE AND THEY WERE STILL CLOSE UNTIL MONDAY!! read more

If they are not doing AC recharge they should take down thos sings just saying... just waited in line for 30 mins for them to tel me that they dont do AC recharges at the moment read more

M&M Alternators & Batteries Auto Care - Auto Repair Near Me - San Bernardino, California

Do not recommend this business they have horrible customer service and will not honor warranty on new and installed parts done by their mechanics. We spent hundreds of dollars at this business please save yourself time and money and go elsewhere. They are extremely rude read more

Very very bad and terrible service and they do not honor the warranty they give you I would not recommend this place to anyone if your reading this I suggest you avoid this place and find another battery and alternator place they just want your money and don't bother helping or uphold the warranty they give you! read more

This place is a total rip off. I had them rebuild a starter on a piece of construction equipment.I is a 4 hour job to get it off and another 4 hours to put it back on. After getting it rebuilt it did exactly the same thing it was doing when I took it in there.It would work part of the time.I didn't have the time to take it off again until it stopped working altogether.I had to finish a job and did not have 2 days to have rebuild it again. So long story short I had to buy a brand new one. When I took it back to get my money back on the rebuild they told me NO refunds. They should stick to what they know. Alternators. If you have a starter problem save yourself the hassle and buy a new one. Don't have them rebuild it. They have lost my business forever. read more

Went to return my battery I have a warranty I couldn't find the physical one but I had a picture and they would not exchange them ....I told the man with the braces on how hard it was to get a ride and he said not my problem now I'm stuck with two dead batterys and a RV that I stay in that relies on them so sad how rude they are but when you buy something they are the nicest ....and to top it off they are the wrong size read more

Great prices on batteries and the give you a warranty on most batteries I highly recommend

I got a starter rebuilt from them for a Dodge Charger hemi 5.7. Did not work I checked everything in my part to make sure. So I call back and ask him did they just paint it or replaced parts because it doesn't work still. He answered me with a foul language I gave no answer or question for that. I know for a fact they had a family member that worked there and went his own way because of the job they did there they're not gonna be responsible for the lousy work they did. The family member open a place in riverside good for him best choice. read more

Great customer service, in and out. WAY CHEAPER than AutoZone! Highly recommended.. . read more

This review is for the location on 1049 W La Cadena Dr. Riverside ca 92501 I came here today It's 59$ to Re charge Freon waited 30 minutes the usual time it takes to complete A employee then returned to tell me my compressor was out and that I would need to pay 30$ for a diagnostic I was surprised as it was never discussed ive been here several times before with no promblem I feel that they were not upfront about there prices It seemed a little shady not happy will not return read more

Usually buy my used batteries here but lately they seem to pull fast ones on customers. I called before i drove to san bernardino and asked if they had a used battery for my car. The guy said Yes and so 30 minutes later i show up and the guy at the front desk ( tall mexican guy speaks good english ) told me that he had No more used batteries and was trying to sell me a New one for 55 bucks. As i stood there and told him that i just called earlier and they said they did, this fool said they all sold out and he only had 6 in stock for the day. And that he will sell me a new one for 50 bucks. This guy was a bad liar and based on previous reviews it seems like they are dishonest workers working here. Will take my business somewhere else. Giving honest mexicans a bad name and making the owner look bad. read more

***WARNING!!!! Please Be aware of this place!! I bought a refurbished alternator which was malfunctioning! I installed the alternator and it was making a noice after being installed. I went back to M&M and informed them about the noice two of the mechanics went out to my car to listen to the noice and they said it wasn't the alternator. Couple weeks later my car broke down and I had to pay for towing, due to this malfunctioning alternator! I don't trust them, I went and got an alternator at O'Reilly auto parts which they give you life time warranty! Please please spend extra money and go elsewhere....where they offer you lifetime warranty! After going and speaking to Management at M&M alternators they don't care for they're customers! $91 down the drain! read more

Always go here for my batteries so i figured why not try out their ac recharge and ac services. Took one of my cars to get freon service and the car's ac barely blows cold. Car did not have ac before so i just settled for what i got. Went in again 2 weeks ago because my other cars ac was blowing very little air on high settings, they diagnosed it and said it was my blower motor. Charged me $310 to "fix" it car ended up blowing the same amount of air. I decided to check the cabin air filter today and the filter was disgusting. Went to autozone and changed the filter myself for $18. Cannot believe these a**holes charged me over $300 for an $18 fix and didnt even fix the problem. Never going back again and advise you not to either. Should've learned my lesson the first time. read more

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Reasonably priced, good service and quick. I'd return or refer to others. They also gave us a free T-shirt

Great and quick service!!! Went in for my A/C which I had been quoted some crazy prices. Got it done for a reasonable price and in an amazingly timely manner!! Thank you read more