M&M Alternators & Batteries Auto Care

Reviews

• SR

  Stephanie R

  1 day ago
  5.0
  10/10 experience. Service was quick. My appointment was at 4 o’clock. I was out of there by 4:29. I could you not it was great. The girl in the front was so sweet and helped me Also the deal on the oil change you cannot pass it up.
• JJ

  Juan

  3 days ago
  5.0
  Great and fast service ! Will be coming back for any future mechanic issues and oil change services, really recommend everyone in Fontana and surrounding cities to come here for their car needs !
• LG

  lupe gallegos

  Aug 14, 2026
  5.0
  I bought a used car. I took to M&M to fix the ac. They did a wonderful job so I took the vehicle back for other problems and the wotk was done superbly as well as quick.
• CA

  Canda Atiyah

  Aug 11, 2026
  5.0
  This place has good deals! And they are fair and reasonable. I git my ac repaired here and great reconditioned batteries at prices I could afford. A new battery for my car cost $250 or more.
• TH

  Terry Howard

  Jul 21, 2026
  1.0
  I took my Dodge Durango and for a cylinder number five dead cylinder. It turned out to be a bad ECM I bought one off-line and had them put it in plug-in play I figured since they didn’t do no work for me. I would have them do my rockers and rollers after another week. They told me my spark plug blew out. I had issues on this spark plug before so I thought no biggie. Please do a Helio coil. They said OK we’ll get in touch with the machine shot another week goes by. I called them back. They say the machine shop does not want to do a Helio coil because it’s not guaranteed. I say OK just buy another Head. They say OK. I called them back after another week, they say I need a new motor I can rebuild that one or I can get a new motor. How do I need a new motor? The motor was fine when I brought it in So I say I’m going to pick my truck up I’ll pick it up. Take it to Candyland and the mechanic tell me there’s a knock in my Motor never was there before my truck was running perfectly fine when I took it to them but now I have to pay to get my Motor Rebuilt because of an incompetent shop. I would never take another car there. I don’t advise anyone to go there. this is a very bad shop bad customer service. They don’t get back to you in a timely manner very unprofessional. Save your car and headaches. Don’t take your car there.