Business Details
21 Years
experience
European Auto Repair Specialists in Fullerton, CA
Ronin Autowerks was founded in 2005 as a premier destination for European vehicle maintenance and repair in North Orange County. Our team of ASE-certified technicians combines decades of experience with factory-standard tools and genuine OEM parts to deliver exceptional service at prices significantly lower than dealership rates. We specialize in BMW, Audi, Mercedes-Benz, MINI, Porsche, and Volkswagen models, offering comprehensive solutions from routine maintenance to high-performance engine builds. Our commitment to transparency ensures no hidden fees, with all services backed by a two-year/24,000-mile warranty on parts and labor. As passionate automotive enthusiasts, we prioritize personalized service while maintaining state-of-the-art facilities equipped for diagnostics, performance tuning, and classic European car restoration.Our engine dyno capabilities and blueprinting processes ensure precision for both stock rebuilds and racing applications. With over 35 years of hands-on motor-building expertise, we serve as a trusted alternative to dealership service centers. Customer satisfaction remains our top priority through clear communication and guaranteed workmanship quality. By focusing exclusively on European models, we maintain unparalleled specialization that extends to our new motorsports division catering to BMW M10 engine enthusiasts.
Services
European Auto Repair
Engine Rebuilding
Factory Scheduled Maintenance
Performance Tuning
Brake Service
AC Repair
Diagnostics
Oil Changes
Suspension Work
Classic Restoration
Details
- Year established: 2005
Highlights and features
- Save 35%+ vs dealership pricing without compromising quality
- Factory-trained ASE-certified technicians with 35+ years experience
- Use of genuine OEM parts for all repairs
- 24,000-mile/2-year warranty on parts and labor
- Specialized tools for precise European vehicle diagnostics
Associations and certifications
- ASE Certified
What people say
Save money
ASE-certified
Quality parts
Personal service
Expert repairs
Services
European Auto Repair
Specialized maintenance and repair for BMW, Audi, Mercedes-Benz, MINI, Porsche, and Volkswagen models. Factory-trained technicians use OEM parts and diagnostic software to ensure precise repairs. Covers complete vehicle systems from engine to electronics.
Engine Rebuilding
Complete engine overhauls for European vehicles using blueprinting techniques and STUSKA dyno testing. Handles both stock restorations and performance builds up to 1000HP. Includes comprehensive documentation and break-in procedures.
Factory Scheduled Maintenance
Manufacturer-recommended service intervals performed with factory precision. Includes fluid exchanges, component replacements, and system diagnostics to maximize vehicle longevity and maintain warranty compliance.
Performance Tuning
Dyno-optimized power upgrades for BMW M10 engines and other performance builds. Adjusts air/fuel ratios, timing, and cooling systems to enhance horsepower while maintaining reliability through pressure and temperature monitoring.
Classic Restoration
Specialty services for classic European vehicles combining modern repair techniques with period-correct components. Focuses on preserving originality while improving reliability and drivability for contemporary use.
People
Matt Rose
Owner
35-year automotive veteran with hands-on experience building engines from stock replacements to 1000HP race motors. Started professional work at 16, developed specialized expertise in BMW M10 motors over the last decade.
Questions
What European car brands do you service?
We specialize in BMW, Audi, Mercedes-Benz, MINI, Porsche, and Volkswagen vehicles with customized maintenance and repair services for each model.
Do you use genuine manufacturer parts?
Yes, we exclusively use genuine OEM parts to maintain factory specifications and ensure optimal performance for your European vehicle.
What warranty coverage do you provide?
All repairs include a comprehensive two-year/24,000-mile warranty covering both parts and labor for complete peace of mind.
Can you perform factory-recommended maintenance?
Yes, we follow manufacturer service schedules precisely using factory diagnostic software to keep your warranty valid and vehicle performing at its best.
Do you handle performance engine builds?
Our motorsports division specializes in BMW M10 engine builds with blueprinting, dyno testing, and documentation for both street and racing applications.
Videos
Reviews (6)
Nick Sauer
May 22, 2022
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Sent my fiancee here for work needed on her R57 Mini. Reasonable price for front brakes including rotors, and they gave estimates on other work needed. I called to ask them about the recommended work and loved that it's a good combination of preventative (changing the entire valve cover that warps instead of just the gasket that might last only a year) and thoughtful needed repairs (advised OEM shocks over performance models for smoother ride). Made an appointment to get everything done next week.
Juan L.
Mar 23, 2022
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Well let's start from the first time coming here with my M5. First I asked for my rod bearing to be replaced with the Vano line, as most shops will replace at the same time. Their mechanic forgot to install it once I asked for my old parts. They did say if the vano line goes bad within the warranty period they would do the repair at no charge only for parts. Second, I brought my car for an engine light, which they stated was catalytic converter was bad. $6000+to repair.
I also told them that the idle would fluctuate, the lady at the counter stated that the problem was a broken wire in the battery location. And that this would cure the problem. Didn't cure the problem, and they charged $300 to resplice a new wire which would take them 5 minutes to perform. But they did add more diff fluid to the diff, as they said but I could not confirm if they really did as they have lied before. I would not recommend this shop.
I also told them that the idle would fluctuate, the lady at the counter stated that the problem was a broken wire in the battery location. And that this would cure the problem. Didn't cure the problem, and they charged $300 to resplice a new wire which would take them 5 minutes to perform. But they did add more diff fluid to the diff, as they said but I could not confirm if they really did as they have lied before. I would not recommend this shop.
Catherine T.
Mar 08, 2022
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I was at DMV and had to exchange my license plates and I did not have tools in hand. They're really helpful in giving me a hand and throwing a couple bolts for my mount so my license plates were secured. Thank you and appreciate the help!
Jay W.
Mar 02, 2022
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I Used To always go there we have three BMW we were always there when something happened until I started finding little things broken stuff cracked on my dashboard who does that it wasn't that way before it went there also I took it in because it was smoking they told me it was a coil wire because it was still under warranty when I drove it home it was smoking all the way they should be ashamed to send it out of the shop like that and yes I have video so I had to take it's somewhere else and I'll keep going there instead. Our cars will never go to Ronin again it was a nicer shop when the other mechanic Josh was there. personal opinion.
Eric W.
Dec 17, 2021
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Awesome service! These guys have been servicing our BMWs for years now, and they are always supremely knowledgeable, honest, and fair. If you own a German car, take it to these guys. They're the best in the business in OC. Five stars!
Susana Cruciana
Oct 30, 2021
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I rely on Randy and Matt at Ronin to take the best care of my 2003 Mini Cooper S. The service is outstanding, friendly, efficient, and on time. They make me feel confident in all their repairs. Estimates are better than other places I've gone. Definitely worth the drive! I know my Mini is in Good Hands! Pleasant waiting room and Keurig Coffee too! Thank you guys!
