• Auto Diagnostic & Repair, Antioch
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Antioch Harold Peoples Choice Award 2015 Antioch Harold Peoples Choice Award 2016 Antioch Harold Peoples Choice Award 2017 Antioch Harold Peoples Choice Award 2018 Antioch Harold Peoples Choice Award 2019 Antioch Harold Peoples Choice Award 2020 Antioch Harold Peoples Choice Award 2021

Antioch's Most Trusted Auto Repair Shop

Auto Diagnostic & Repair, Antioch is a full-service mechanic shop. Not only are we prepared to take on any type of mechanic work, but we also promise to fix what other shops can't! My name is Brian Bellante, and I've been running this shop since I was 25 years old. In that time, my customers have brought in vehicles with just about every type of problem imaginable. Visiting an auto repair shop isn't going to help if the job isn't done right the first time. You need a mechanic you can trust, and you've found one.

We have two locations to serve you, our Antioch location, as well as our Brentwood Repair Shop. Visit one of our shops today for the best deals on parts, auto repair
services, and maintenance.

Auto Mechanic at Auto Diagnostic & Repair, Antioch repairing brakes
Auto Mechanic at Auto Diagnostic & Repair, Antioch repairing engine
Auto & Truck Mechanic at Auto Diagnostic & Repair, Antioch repairing a van

Car Repair Services You Can Count On

Do you need brake repair or maintenance? Now is the time. Come in for an inspection and safety check today.

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Our goal here at Auto Diagnostic & Repair, Antioch is to fix it right the first time. That way, our customers can get back to enjoying their lives and their vehicles without any hassles in the near future. We accomplish this goal by maintaining a strong attention to detail. When the mechanic is focused, the job is completed the right way.


Our shop is ASE certified and holds BBB and AAA affiliations. I'm a certified master tech with thousands of hours of automotive experience. If you're looking for a mechanic who can take on any job and offer a reasonable price. Auto Diagnostic & Repair, Antioch is the shop for you. My goal in starting this business was to blend a family atmosphere and friendly services with the best technical skills in town. Even after all this time, I'm still able to learn something new and expand my skillset with every vehicle we work on. We appreciate the chance to help you out by offering affordable maintenance services, brake repair, and other auto repair work.

All the Services You Need for Your Car in One Place!

  • Check Engine Light Diagnostics
  • Brake Repair
  • 30, 60, and 90k Mileage Checks
  • Timing Belts
  • Suspension
  • Tune-Ups
  • Oil Change & Lube Service
  • AC & Heater Repair
  • Tires
  • Alignment
  • Transmission Repair & Service
  • Other Auto Repair Work
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I feel very pleased by my experience with Auto Diagnostic and Repair. Also with you, personally, Brian. You were professional, courteous, informative, and funny!


You have a life to live, and a vehicle breakdown can really get in the way. Even dropping your car off for routine maintenance can be a major inconvenience. That's why we aim to make the process as easy as possible. If you're getting a brake repair or other major work done, we'll carefully explain everything we plan to do, preventing you from being left in the dark. We'll handle minor maintenance work with quick efficiency. You can also expect some great amenities at our shop.

Key drop-off icon 24-HOUR
Free wifi icon FREE
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Whether you need brake repair, an engine overhaul, or a simple oil change, bringing your car to Auto Diagnostic & Repair, Antioch is your best bet for a great experience. We're always looking for ways to help our customers save money, from staying up to date on the latest news in engine parts to offering coupons and discounts. We want everyone in the local community to be able to access the auto repair services they need at an affordable price. We consider it a privilege and a blessing to offer these services to you.

Auto Diagnostic & Repair, Antioch - auto mechanics

If you'd like more information on brake repair or our other mechanic services, please contact us now. We'll get your car in as soon as possible, allowing you to get back to enjoying the freedom of the open road.

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