Auto Union Tuning is a premier service center located in Orange County, specializing in VW, Audi, Porsche, Bentley, Lamborghini, BMW, and Mercedes Benz vehicles. With over 50 years of combined experience, their factory-trained technicians offer a wide range of services, including oil changes, scheduled maintenance, performance tuning, electrical repairs, suspension modifications, and brake diagnostics. Customers consistently praise the clean shop, clear communication, and upfront pricing. The staff is known for being knowledgeable, helpful, and respectful, making sure to keep clients informed about their vehicle's status. Many have noted that the quality of service provided surpasses that of traditional dealerships, both in terms of experience and cost. Whether addressing routine maintenance or specific performance upgrades, Auto Union Tuning has built a strong reputation for honest and reliable service, making it a trusted choice for car enthusiasts in the area.
Best shop around. Fast, friendly, efficient, and reasonably priced. I bring my VW here for everything needed.
February 2026
AU does great work, on-time, and for a fair price. I highly recommend them!
October 2024
The whole team is great. Shop is clean, they communicate. Pricing is very up front with clear brake downs. They never scratch or damage your car. Better than the dealer both in quality and experience…. And price.
