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    Auto Union Tuning

    4.9 (93 reviews)
    Closed 8:00 am - 12:00 pm, 1:00 PM - 5:00 PM
    Updated 3 months ago

    Services - Auto Union Tuning

    Check engine light

    Engine oil light diagnosis

    Auto general diagnosis

    20 More Services

    Auto noise diagnosis

    Tire Pressure Monitoring System diagnosis

    Auto no-start diagnosis

    Auto vibration diagnosis

    Auto diagnosis or inspection

    Auto pre-purchase inspection

    Auto maintenance

    Auto fluids and filters maintenance

    Oil changes

    Auto repairs

    Auto battery or electrical system repair

    Auto brake repair

    Auto engine repair

    Auto exhaust repair

    Auto light repair

    Auto steering and suspension repair

    Auto transmission repair

    Auto wheel and tire repair

    Routine automotive maintenance

    Transmission leak inspection

    Auto Union Tuning Photos

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    Recommended Reviews - Auto Union Tuning

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    Reviews With Photos

    MK8 Golf R
    Diego K.

    I've been a customer of Auto Union since May 2024. My friend recommended them, and I'm so glad he did. They're incredibly attentive to my MK8 R, providing all the necessary maintenance at a better price than the dealership. They tuned my car, and it's been running like a dream ever since. I drive from Los Angeles to this place! I couldn't be happier with my car shop!

    17' Passat Rline
    Jared w.

    Ive been here many times and trust me these guys know what they're talking about. From engine work to the suspension and even getting the right tune. Best shop I've been to and the only shop i go for all of my cars needs. The inside is clean and service writers are always very patient and knowledgeable. They always show love and give compliments on my car. As a paying customer i really appreciate the level of detail they put into every install. For your VAG needs come to AU Tuning. Shoutout to Nick for always being an email, call or text away!

    We found this shop by word of mouth in our community. We took my son's GTI there to have it repaired and the shop exceeded my expectations. They were professional and Nick communicated throughout the entire process. Shop was clean and you can tell they pride in their work. They were very thorough and the prices were good! We will definitely go back if we ever need any of our cars repaired!

    Remus exhaust for Golf R
    Omar N.

    Top-notch service and communication from this place. I purchased a Golf R earlier this year and finding a specialist shop to take care of my vehicle was a priority. I went with AU tuning due to their years in this business and the work they put into VW and Audi vehicles. Starting with communication, this place communicates highly efficiently. While emailing Raz and Nick, whether for maintenance, fixing an issue, or even finding me the parts I want. Their communication skills never missed a beat. I had them complete the 30k service on my Golf R here and I really liked that they took their time to document everything, at the end I got pictures confirming all the work they did and even pictures confirming the transmission leak from previous paperwork I received. I recently got a Remus exhaust installed here and they worked with me to get the parts from their suppliers. With confidence, I can say this is my home shop for my Golf R and I wanted to thank the team over at AU Tuning for all of the work they put in.

    2016 Supercharged Mustang GT on E85
    Mihailo M.

    These guys are incredible. I have been going to Raz and Dave at AU Tuning for over a decade, through multiple cars starting back when I was a teenager coming in with a limp-mode 20th AE GTI to now. They were total pros and knew exactly what was wrong getting me back on the road same day. It's extremely rare to find a shop who's owners are still hands-on and maintain their legacy of professionalism and quality through their exponential growth and notoriety over the years. For years I have been recommending AU Tuning to my friends and family and stand by the quality of work they do to a near-religious extent. The shop has moved and so have I over the years, but I still take a 2 hour round trip specifically to continue going here. I have moved into many different platforms from B5 S4s, JCW Mini's, Porsche's, Mercedes' and now my Supercharged Mustang, and they still find ways to take care of me no matter the car. Joe has been taking care of my Mustang and knows the platform just as well as any of the V.A.G. cars they typically work on. Joe has been incredibly knowledgeable and services my car with fantastic attention to detail, keeping me updated every step of the way. I especially appreciate the SitRep he gives me on the car as it's a heavily modified track car and he genuinely wants to make sure it's at 110% every time it passes through his hands. I can't praise or thank these guys enough, and look forward to the next 10+ years of working together!

    New rims m5

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    Page 3 of 3

    Ask the Community - Auto Union Tuning

    How much for oil change on 2017 Audi s3 OEM filter?

    Please send us an email at service@autuning.com or give us a call at 714-841-1000 for pricing.

    View All 4 Questions

    Review Highlights - Auto Union Tuning

    I told Nick I was completely new to the world of modifying cars, especially Audis, and he couldn't have been more helpful.

    Mentioned in 26 reviews

    Read more highlights

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    Neel's Car Care Center - Neel and Hector.
Taking care of your car since 2009.

    Neel's Car Care Center

    (235 reviews)

    On your personal list of the 10 friendliest, most honest people you've ever met, I doubt your…read moremechanic is there. But mine is! He is Neel the owner (as you might've guessed) of this establishment on Imperial Hwy, which is thankfully not too far from us. He diagnoses quickly, gets the job done efficiently, charges reasonably compared to other mechanics we've gone to in the area, and above all is a man of integrity--he's allowed us to pay for certain repairs days later to make sure our car is running properly first. He is transparent about his shop's limitations (they don't do German cars but refer us to highly rated shops nearby). He is clearly very experienced and knows how to weigh the best repair options, especially for older vehicles. I plan on relying on Neel for years to come. Cheers!

    First time customer at Neel's Car Care and they really do care! Greeted by Hector who immediately…read moregot us going, understood my concerns and what I wanted done. They were busy but insured me it would only be about two hours for an oil change, break inspection, and tire rotation. Got a call about an hour later from Neel himself saying my Rav 4 was ready to go and didn't hassle me about doing any additional work, which I feel you get every time at a mechanic shop. It was a great feeling to just get the service and feed back you requested. Thanks Neel and Hector for the honestly, professional input, and transparency. Look forward to working with your company in the future. Only downside is parking. Be patient and you'll find one.

    Tokyo Automotive Repair - Keep in mind I only went in for a AC repair! Don't trust him with your vintage car.

    Tokyo Automotive Repair

    (233 reviews)

    My car's electronic parking brake system needed to be reset because the car was showing an error…read moreafter my husband change the pads and rotors, the parking brake was working fine but the computer wouldn't reset. I went to the pos Puente Hills Mitsubishi at first for help and was told it would be $300 to disassemble the entire braking system to even have it diagnosed when all it needed was a 5min reset by specialty computer tool. Came here to Tokyo Automotive Repair to see if they could help, and Kevin upfront was so nice. The tech, Kai I believe, took care of it right away! No more error beeping. Never going to the dealership again.

    I recently took my 36k miles 2021 Mazda CX-30 in for an oil change and I think Kevin suspected that…read moremaybe I don't know a lot about cars because he tried to upsell me some silly oil package on my car stating that it'll cause more carbon buildup if I don't.... I'm always on time with oil changes 5k miles no matter what year... I relied on the old reviews of this place with Tatsu but I agree, I met Kevin and he isn't that welcoming, not sure if he's going thru something in his life and taking it out on customer but I also agree, he's short, can come off as rude and idk, doesn't seem to enjoy talking to customers about cars. I asked for oil change only and got quoted over 200$? He tried to say the better oil was recommended but like dude I can go to valvoline right now for 100$ no questions asked.. I think they try to charge more because they use high tech diagnostic equipment which is great for major issues but for simple things I was displeased to get upsold when my almost new car is in great condition..... I was hoping to build a lasting relationship with this place but I'm going back to my trusted dealer who is a bit farther but worth the drive, Fitzgeralds Auto in Costa Mesa or OC Masters Tech in Orange for my MAZDA!

    J's Mobile Mechanic

    J's Mobile Mechanic

    (71 reviews)

    Jesse was amazing! I messed up doing my own oil change and ended up over torquing the oil drain pan…read morebolt, so my bolt wouldn't stay in. I made an appointment with him the night prior at 10pm and he promptly came out the next day at 8:30AM to fix the issue. He retapped the threads I had stripped out and fixed it for me. He also made sure to drop my oil pan and clean out the metal shavings so they wouldn't get into the engine and put a new gasket on when he reinstalled it. He also completed my oil change. He was able to finish the work in less than 2 hours too! Thank you Jesse for your great help! You saved me!

    As you can see by the other reviews, Jesse the owner needs to improve his organization and…read morecommunication to run his business better. My experience was called to book on Monday morning, quoted the price based on easy to describe work and an appointment for Wednesday at 8AM. So I adjust my schedule and am ready. No show, no answer calls or texts until a call at 930 - where he apologizes for issues on Tuesday and will show up at 5PM. Fine. I'll adjust my evening plans too. An organized person would have adjusted plans and communicated Wednesday if they had issues/delays Tuesday. Then, at 2PM calls back and says looking more like 530PM. And then he says... oh? Did I give you a price already? Oh that's actually a lot of work and says it'll actually cost 60% more. That was enough to call it quits. While I can't speak to his mechanic abilities, he fell short on: 1) being able to accurately understand and estimate work before quoting, or worse, stick to his quote when he gets busy 2) ability to plan his schedule and communicate reasonably. I hope he learns from this and other experiences and reaches his potential through better consistency.

    Frank's Auto Service

    Frank's Auto Service

    (253 reviews)

    I have brought my girlfriend's SUV to Frank a few times in recent months and wanted to write an…read moreupdate. One visit was to troubleshoot the air conditioning, which was barely cool at best. I was hoping it just needed a Freon recharge. After checking the A/C system, Frank confirmed that the Freon was just low and everything else looked good. Luckily, her older car uses the newer, less expensive Freon. I just hung out while he recharged the system, and it was ready to go about 20 minutes later. The cost was only $150, money well spent to get ice cold air conditioning back. The most recent visit was to troubleshoot a service error code and ABS and brake warning lights. I was hoping this would just be a sensor on one of the wheels, but Frank said it looked like the main ABS ECU unit was faulty. Given the potential cost of the repair, it didn't make sense given the value of the car. I appreciated his honest opinion. He said there was no charge, but I still tipped him for his time because he always takes great care of me. I have tried a few other shops in the area over the years, and had initial good experiences. However, they all eventually gave me an estimate I knew as wrong, or didn't do work they said they did. I've been going to Frank ever since, and trust him 100%. If you need a top notch mechanic, Frank is your guy!

    So glad I found this gem of a business. Frank was super friendly and honest. He took the time to…read moreexplain what was the best route to take care of my car. Pricing is fair for the quality of work and service, will definitely be coming back here.

    Auto Union Tuning - autopartssupplies - Updated May 2026

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