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Scheduled Maintenance Repairs


  • Alignmens

  • Mounting & Balancing

  • Brake System Repair & Upgrades

  • Suspension Components

Electrical System Repairs and Diagnosis

Engine Tuning, Modifications, and Diagnosis

Transmission Repairs and Diagnosis

About Auto Union Tuning

At AU Tuning, we redefine automotive service with an unwavering commitment to excellence. Nestled in the heart of Placentia, our state-of-the-art facility stands as a testament to our dedication to providing unparalleled service for luxury vehicles, specializing in Audi, Volkswagen, Porsche, Bentley, and Lamborghini.  Whether it's routine maintenance, diagnostics, or performance enhancements, your vehicle is in the hands of professionals who share your passion for automotive excellence.

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What Our Satisfied Clients Have to Say

Absolutely hands-down the best mechanic in town! Kudos to Raz and Dave for taking care of my car for all these years."

Dani S.

AU Tuning is my go to trusted shop for maintenance to mods. Enthusiast owners and certified mechanics who are professional, responsive, and always happy to help. Highly recommended! Worth the drive no matter where you are in LA county.

Apex F.

“The team at this business completely turned an unfortunate event around. I appreciate them going above and beyond. It's been many years since I've had the trust of a good mechanic and I believe they do a great job here. They have earned my trust!!!”

David V.

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