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    South Coast Auto Clinic

    4.6 (362 reviews)
    Closed 8:00 am - 5:00 pm

    Services - South Coast Auto Clinic

    Auto diagnosis or inspection

    Auto maintenance

    Auto fluids and filters maintenance

    12 More Services

    Oil changes

    Auto repairs

    Auto battery or electrical system repair

    Auto brake repair

    Auto engine repair

    Auto HVAC repair

    Auto light repair

    Auto steering and suspension repair

    Auto transmission repair

    Auto wheel and tire repair

    Routine automotive maintenance

    Transmission leak inspection

    South Coast Auto Clinic Photos

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    Recommended Reviews - South Coast Auto Clinic

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    Thanks again!
    J T.

    I took my car in for inspection in the morning, and was out by noon. Josh worked on my cars valve cover gasket, and I couldn't be happier! Does not leak under 27psi of Booost! Thanks guys @ Auto Clinic!

    Alternator Wire Cap Missing
    Michelle R.

    VERY SLOPPY WORKMANSHIP! You MUST question everything they tell you! First of all, I'm using my wife's Yelp account since I don't have one. Do not go here if you have even the slightest care about your car. I've now gone here four times and the last two will be my final two. I take a lot of pride in both of our cars and have always kept them in top shape. I've typically taken my wife's Lexus to the dealer for service but since it only needed an oil change I figured SCAC could handle it. I received a call shortly after dropping it off for a few additional "recommended" services in addition to the oil change (spark plug replacement, rear diff fluid change, brake fluid flush, and transmission fluid change). I agreed to all but the spark plug replacement. After reading the owners manual of my car, it clearly states that this has a "closed transmission system and therefore the transmission fluid does not need replacement"...ever! I'm not sure how they replaced it on a closed system or why they would recommend something that the owners manual clearly says not to do? You must question everything they recommend! Now on to my last experience. My alternator was going bad on my FJ Cruiser, which I had personally tested and confirmed before I brought it in. I am mechanically inclined and could have done it myself, but quite honestly didn't feel like it and was willing to pay someone else +/- $150 in labor to do it. They quoted the cost of the new alternator at $360.00! When I asked why it was so expensive, there was no valid explanation. I had already shopped for one the day before and let SCAC know that Tustin Toyota had them in stock for $244.00 for the exact same spec alternator. I also found the same spec alternator (OEM Denso) online for $170.00. They said they would check with another supplier and call me back. Within one minute I received a return call that they could get the same spec alternator from a different supplier for $255.00, which I agreed to (still pricey but not worth arguing anymore). They replaced the alternator that same day. After picking up my car and driving home, my Check Engine Light came on after about 10 miles so I decided to take it back to SCAC the next morning. Upon my return, I showed them the CEL and also that the mechanic failed to reinstall the plastic cap that covers the main power wire from the alternator (I knew it was there when I brought it in since I just saw it the day before). He said he would check with the mechanic to see if they could locate the missing cap, but to this date I never heard back that they found it or replaced it (nor have they offered to buy me a new one). This forced me to buy one myself from Tustin Toyota. It's concerning when a mechanic fails to reinstall all of the parts you had on your car to begin with! If it broke or was lost during the process, I get it, just tell me that you broke it and need to order a new one! I also noticed they failed to reinstall the in-line fuse holder back in the mount when they disconnected the battery. That's not a big deal but just shows sloppy workmanship. As for the CEL, they plugged in their computer and saw some error codes, but rather than offer to diagnose the code they said they would clear them in the computer to see if that solves the problem...nope! After leaving and driving about 10 more miles, the CEL light was back on. Rather than take it back it back to a place where my trust was diminishing, I decided to find the problem myself. I hooked up my own OBD2 scanner and retrieved the error codes and was able to research possible causes and narrowed it down to a problem with the Purge VSV valve. I was prepared to buy the $60.00 VSV valve and replace it myself, but wanted to do a visual inspection first. Wouldn't you know that the vacuum hose that connects to the VSV valve was completely removed which is what triggered the CEL from the beginning!. This VSV valve is located directly above the alternator, so it was most certainly pulled off during the alternator replacement, but never reinstalled (they are held on by clamps so there's no chance of it falling off by itself). Thank god I didn't spend hundreds of dollars more with them to try and diagnose their own poor workmanship! On a final note, they don't use any protection over your fenders when working on your car, so there was grease and dirt all over my drivers side fender when I picked it up (and I just waxed it 2 days prior) I don't expect them to wash my car, but at least protect the car when you work on it! Between the missing parts, very sloppy installation, and lack of response to these open issues, I will not be returning here again. To those people who believe this is a "fair", "honest", "trustworthy" repair shop, think again, you are being fooled.

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    1 year ago

    I needed a battery replaced & they did it in less than 24 hours with great service. Would recommend

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    6 years ago

    Very friendly and helpful employees here! They do a great job and answer all my questions. This is my go to mechanic!

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    9 years ago

    Business owner information

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    Sal G.

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    15 years ago

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    Page 1 of 10

    Ask the Community - South Coast Auto Clinic

    Review Highlights - South Coast Auto Clinic

    My man Sal known for years, great group of technicians he's assembled at his business.

    Mentioned in 84 reviews

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    Performance Auto Service & Repair

    Performance Auto Service & Repair

    5.0
    (282 reviews)

    I can't express how grateful I am for Performance Auto Repair in Costa Mesa. Even though I live all…read morethe way in Chino, something about their reviews made me feel like I could trust them -- and I was right. When my SUV overheated and the engine failed, I was overwhelmed. But the moment I spoke with them, it felt like a weight lifted. They understood exactly what was happening before they even saw the car. Instead of pushing a costly $6,000 engine replacement, Byron found a way to rebuild the engine through a machine shop, saving me thousands. That kind of honesty is rare. The repairs took time, but they never rushed. They kept us updated, checked every detail, and refused to release the vehicle until they were absolutely sure there were no leaks, no issues, no surprises. After dealing with another shop that returned our Honda Pilot with oil leaks, this level of care meant everything. What stood out most was their integrity. Their kindness. Their commitment to doing the right thing even when it takes longer or costs them more effort. If we lived closer to Costa Mesa, we'd bring every one of our vehicles here without hesitation. There truly aren't enough words to describe how thankful I am for Byron and his team. They didn't just fix my SUV -- they restored my trust in what an honest auto shop can be.

    An honest expert mechanic that I'm so grateful to have found. Byron has been keeping my cars…read morerunning for years. I highly recommend him but low-key I want to gate keep this place. I don't want the spot to be blown up, but hey, when you work so hard, you deserve to gain a loyal and strong following.

    A&J's Auto Garage

    A&J's Auto Garage

    5.0
    (55 reviews)

    It's rare to find kind people who truly care about clients in this industry. It's surprising to…read morecome across people like Arnold and Arnaulfo. Their prices are the most fair in the area, but the quality, the skill, the knowledge that were provided was TOP NOTCH. Very honest and knows alot about cars. They deserve your business and referrals. I called them and they were able to squeeze us in after I told him we had an urgent case and needed their help. He found more issues that other shops probably wouldnt have caught. Auto scientists with MAD SKILLS. Arnold educated and guided me and we were able to make the best and right decision on the vehicle. Thanks man!

    TRUSTWORTHY. Highly skilled. Knowledgeable. Kind. That's exactly how I would describe Arnold and…read morehis father. If you need a pre-purchase inspection or any auto repair, whether it be european, american, japanese made, etc, and EVs, take your car here and don't think twice. We reached out to Arnold for a pre-purchase inspection. While six other places quoted us $250-$350 for a "comprehensive" inspection, we paid Arnold $100, which was a STEAL for what he did, even more than what the others promised. He spent at least two hours thoroughly checking the vehicle, test driving it and walking us through every detail so we truly understood its condition. We were looking at buying an Audi Q4 e-tron that had a damage report. A reputable dealership told us it was "minor" and offered to take it to the mechanic for our peace of mind. After browsing Yelp and reading the amazing reviews, we decided to come here instead and I'm so glad we did. I had already done my due diligence and familiarized myself with the vehicle and potential issues. I asked Arnold very specific, technical questions that I already knew the answers to. He answered every single one with clarity and confidence and everything I was expecting to hear. My husband stayed the entire time, and Arnold patiently explained everything while inspecting the car. You can tell he was that kid that made the auto shop his playground growing up. He's passionate, meticulous, and GENUINELY cares. What impressed me most is that Arnold will never pressure you. He won't tell you "don't buy it," but he will clearly explain what could go wrong and what it might cost to fix. When I pressed him for his honest opinion, he said he personally wouldn't buy it at the listed price but if we negotiated it lower, then it might be worth considering. That level of honesty is RARE. They are your small local auto shop but I would choose them over any flashy, grandiose service center any day. Their integrity and transparency make them stand out. Thank you so much, Arnold and your dad, for the amazing service. We ended up just buying a Tesla!

    South Coast Auto Clinic - autorepair - Updated July 2026

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