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  • Using only genuine and the highest quality O.E.M. parts, there is no job too big or small. We also stock and sell many parts over the counter for the DIY enthusiast.

  • Oil and filter changes

  • Tire mounting and balancing

  • Alignments

  • Factory key programming

  • CARB Legal Performance software tuning

  • Dynamometer testing

  • Regular maintenance, major and minor services

  • OEM plus upgrades

  • Electrical system repairs and diagnosis

  • Suspension repairs and modifications

  • Brake system repairs and upgrades

  • Engine mechanical repairs, modifications, diagnosis

  • Transmission repairs and diagnosis

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When it comes to auto repair in Orange County, CA, it’s all about earning loyalty and trust by doing our very best every day. We are determined to earn and keep your trust.

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At Auto Union Tuning, you can rest easy knowing that our highly-skilled, experienced auto service professionals are handling your car. Our technicians bring years of experience, skill, and education to the Placentia auto repair table.



We take the time we need to provide you with top quality service, and we take the time to talk to you about what that means. We listen to you so we understand your needs and goals for your auto repair.

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