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M&M Alternators & Batteries Auto Care

4.9
(300 reviews)

Business Details

9433 Sierra Avenue, Fontana, CA
92335, United States
(909) 251-4371
https://mandmalternatorsandbatteries.com/fontana/

About

Auto Repair ShopAlternator RepairAuto Air Conditioning Service
When your vehicle needs professional attention in Fontana, California, you can count on Fontana to deliver reliable auto repair services that keep you safely on the road. Located at 9433 Sierra Ave., Fontana, CA 92335, our experienced technicians understand the unique driving challenges of navigating the busy corridors of Sierra Avenue and the surrounding San Bernardino County area. We provide comprehensive auto repair services for all makes and models, from routine maintenance to complex diagnostics.

Location

M&M Alternators & Batteries Auto Care
9433 Sierra Avenue, Fontana, CA
92335, 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

4.9
300 reviews
5 stars
285
4 stars
4
3 stars
3
2 stars
1
1 star
7
  • MN
    Monica Navarette
    4 days ago
    5.0
    This is the 2nd time bringing it here, they are professional and accommodating a well.
  • TW
    Teresa Wheel
    5 days ago
    5.0
    Excellent service, fast and very efficient. Nice people to work with. Highly recommend…
  • PT
    Phillip Torres
    Jun 29, 2026
    5.0
    Very good first time experience. The customer service and technicians were top notch. Will be bringing my Honda (Ferrari 😄) back for future services.
  • TH
    Tina Huffman
    Jun 18, 2026
    5.0
    Very great service very honest I like that they give you a visual pictures of the work that needs to be done great prices
  • OH
    Oscar Hernandez
    Jun 16, 2026
    1.0
    They didn’t do a free inspection well recharging my ac system. Inspection and diagnose are complete different which my Freon leak out less then 24 hours had to been a big leak and they didn’t advise me of the leak !!!

Brand Certified Facts from M&M Alternators & Batteries Auto Care

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