Byron and his team took such great care of my son's truck. He tried to work on it himself but at…read more16, he needed a little help from the big dawgs. They swiftly replaced the brakes and rotors and the price didn't break the bank. That's everything you need in an auto repair shop! I hope you get a location closer to my house soon! :)

Incompetent Repair and Hostile, Unprofessional Ownership…read more Performance Auto Placentia is run like a prison yard, not a professional auto repair shop. In February, I paid this shop to replace the water pump and timing belt on my 2004 Lexus. The job was botched. I have had to bring the vehicle back twice, the belts are still squeaking, and it still smells strongly of radiator fluid. When confronted with his failed work, the owner completely deflected, claiming it was a "different car" instead of taking responsibility for a paid job that was never fixed properly. I am now forced to take my vehicle elsewhere to have it repaired correctly. On top of technical incompetence, the owner is incredibly rude, condescending, and confrontational. He has zero customer service skills or basic respect. Yesterday, I paid over $600 to have brakes put on my 2017 Lexus. The owner told me to come back the next morning at 7:30 AM for a quick "five-minute turn on the wrenches" to make an adjustment. I showed up early and waited quietly. Instead of doing the work, the owner came out and aggressively lectured me about being early like he is some kind of God. He is an aggressive, rude control freak who tries to exert arbitrary power over paying customers. He knew clearly that I am currently grieving the profound loss of my father, yet he chose to act with absolute malice and a total lack of proper bedside manner. I looked him dead in the eye at 7:42 AM and told him face-to-face that he will never recover from this. He has permanently ruined his shop's reputation with me, his son should be ashamed of his behavior, and I am entirely done dealing with this business. Avoid this shop at all costs.

This has become my new trusted mechanic for all of our car needs…read more As a woman who has driven used cars for most of her life, going to a trusted mechanic is hard to find. I used to go to mechanics in Santa Ana but was not always able to get the services I needed. Now with a new car, I was tired of getting price gouged for a simple oil change at the dealership. At Harbor Auto Service, Mike and John get the job done at an affordable price and take customer service to the next level. For example, when you have already paid and are all set, they park the car right outside for you and send you on your way. They are respectful and take the time to explain what is wrong with the car and give you plenty of options. They also have a nice waiting room with a tv, couches, and offer water as you wait. I have been here twice, and each time has been pleasant. I am already recommending them to all of my friends and family as a solid, trusted choice!

If I could give zero stars, I would give it…read more Mike at Harbor Auto is a complete fraud and does what he can to steal your money. I made the mistake of taking my car back to Harbor Auto after an issue with a new battery that they installed for me a few years ago which died literally a few days later because they messed up putting things back together. Fast forward to my latest predicament. A few weeks ago, my car was dying on the freeway. Had no idea what was going on, but noticed it was not going higher than 1800 RPMs and not going higher than 2nd gear. It put itself into protective mode. I managed to get myself to an Autozone and they scanned the car and got a few codes outlining what the issue was. I said I would get it to a mechanic in the morning. Unfortunately, I made the mistake of taking it to Mike at Harbor Auto. The codes Autozone provided were: P2191 and P1326 and then some commentary about it being my PCV Valve that needed replacing too. I showed these codes/printout to Mike and he said "don't worry, we'll take a look and get it figured out". I waited nearly the whole day before I called Mike to get an update, he said he would call me back with updates "soon". He then called me about 20 mins later suggesting that it might be my catalytic converter that might need replacing. I was curious because there was no indication that my catalytic converter was an issue. I looked up prices on my own to get an idea of what the price range could look like while waiting for Mike to call me back. He calls back and confirms "its definitely your catalytic converter and I'm not sure if you're going to want to put up the $$$ to replace it." He then quotes me $3,175.00 for a a new catalytic converter. I'm floored because the research I did for my car (2011 Hyundai Sonata LE) was approx $1200 for a Hyundai converter or something between $800-1000 for a 3rd party converter. I was already pissed by this point. I just told Mike I'm taking the car back and to leave it alone. I knew he was trying to literally swindle me and I don't know why. Maybe he just didn't want to do the work on the car? Maybe he had NO idea what he was doing? Either way, this just confirmed that I would never go to Harbor Auto Service again. I spoke with my neighbor whose a mechanic as a hobby that night, told him everything that was going on and he agreed that Mike was trying to bamboozle me for the money! He gave me a great suggestion which was to get a second opinion which is exactly what I did. I then took it where he takes his cars which is literally right next door to Harbor Auto to a place called Costa Mesa Transmission. He let the owner Arturo know that I was coming. I took my car to Arturo the following morning and I gave him the same rundown of what was going on. He did some research on the codes from the scanner the other day and calls me back within 2 hours of drop off saying they can't do anything with the car BUT that there was a warranty/recall situation with Hyundai related to my scanned codes. He said I should call Hyundai service first to see if they could take a look at the car which is exactly what I did. Hyundai took the car and it was indeed covered under one of their warranties/recall notices. So everything was going to be covered by Hyundai for free. Arturo also did not charge me a dime when I went to pick it up and take it to Hyundai. THIS IS THE TYPE OF PERSON I WISH TO DO BUSINESS WITH IN THE FUTURE!!! PLEASE AVOID HARBOR AUTO SERVICE AT ALL COSTS!!! TAKE YOUR CAR NEXT DOOR TO COSTA MESA TRANSMISSION INSTEAD!!! SEE ARTURO!!! They do standard work like oil changes, etc and a lot of other work besides just transmissions. You will be saving money and grief by avoiding Harbor Auto Service. I knew from the jump that it was a mistake to take it back to Harbor, but I was desperate to find a place that opened early in the morning. When I should've literally drove my car another 20 feet in the same driveway and taken it to Costa Mesa Transmission. @Mike, I want my $160.00 you charged me back as a refund. You honestly should be ashamed of yourself for attempting to gouge your customers the way you tried with me. Absolutely shameful.

Tuesday after Labor Day, 100 degrees, Expertec is two technicians short ( what??? people calling in…read moresick after a holiday??‍) And 19 appointments. My oil and air in tires are low.! Gary, the manager, personally added oil and had a lovely young man who was, of course, sweating, added air to my tires. This is the great service this location of Expertec provides. Normally, it's preferable to make an appointment and Mike will drive you home or to the office AND pick you up when your car is ready. I have never had such good service anywhere! Of course, I highly recommend Expertec Costa Mesa!

I've come here twice and have been happy with the service. Mostly because my car is returned to me…read morewithin a decent timeframe. I was going somewhere else prior and they would keep my car the entire day for a basic oil change. The first time I came after having my car serviced elsewhere and heard an odd sound when I got it back. I asked ExperTec if they could get my car back to me by the end of the day and they weren't sure, however I did get my car back within a few hours. I think they're priced fairly compared to other places in the area. I like that they're open on weekends too. I'm not a mechanic by any means but I'm also super wary of being taken advantage of which happens almost every where I go. I will say they did tell me my car passed their inspection then tried to recommend a bunch of services I'd had done recently. They didn't push me to get them or try to scare me into thinking my car was going to explode if I didn't do the recommended services lol. I've recommended this place to a couple people and they've been happy too so I think they're pretty good overall.

Thomas from AutoMedic made the effort to call me and wanted to 'make things right' after I posted…read moremy Yelp review. I had texted him about the hassle I went thru after my minivan's alternator went out in July 2026, 15 months they had replaced it. Somehow that text did not go thru to his phone. The alternator had gone out when I was on the road, 4 hours away from home. Once they saw my review (Sep 2026), they reached out within a few hours. This showed me that this company cares about its reputation and had high standard of customer service. We talked and Thomas told me he would refund me the cost of the alternator. I received the money but it was more than just the money that left a great impression upon me. It was the honesty, integrity and the willingness to listen to my less-than-great initial experience. Anyhow, I think of them as a solid business that puts its customers first. I have updated them to 5 stars. They have earned it!

Definitely worth every penny considering they gave me a reason to walk away from what would've been…read morea financial nightmare! I had a PPI service done on a Carmax car. The AutoMedic was able to find hidden oil and coolant leaks, as well as identify panels that were re-painted (because of a collision) Over 300 photos, a handful of videos, lots of good information that justified the price of the PPI service. Communication was solid, absolute pleasure to work with. I highly recommend having a PPI service done on a car that you seriously intend to buy. You will regret not doing it once that first surprise repair bill hits.

Absolutely Fantastic, Honest, and Caring Shop! I had a…read morewonderful experience at this shop and cannot recommend them highly enough! I brought in my 2012 Hyundai Elantra Limited for some major brake issues, and they provided top-notch service from start to finish. After getting quoted on the price, I researched costs on these types of repairs. I think I got a very fair price for what was done and feel completely good about the charge. Plus, the work was done same day without an appointment! My right front brake caliper had a severe fluid leak and looked terrible. They did a complete, thorough job replacing the calipers, inspecting the lines, and completely flushing and bleeding the entire hydraulic brake system until it ran totally clean. They inspected my brake pads and rotors and provided proof that they didn't need replacing. At pick up, James took the time to show me the old part and explained perfectly why it was a major safety hazard, and why it was best practice to replace both front calipers together. A huge shoutout to James, the service manager. He made the entire process seamless, welcoming, and completely stress-free. Anthony, the owner, and Ralph, the actual mechanic, were both just as pleasant and professional. Anthony personally drove me home, and Ralph picked me up when my car was ready. Because I walk with a cane, they were incredibly kind and genuinely concerned for my safety while I was getting in and out of the cars. You just don't find that kind of deep community care anymore! To top it all off, they gave me a senior citizen discount. Finding an honest, skilled, and genuinely caring mechanic shop is rare. James, Anthony, and Ralph have earned a customer for life, and I highly recommend them to anyone looking for trustworthy automotive repair!

The service and staff definitely value fixing my vehicle. James went above and beyond, grateful for…read morehis knowledge and was super helpful when explaining my vehicles diagnostic issues. They value their customers and they were honest about the process. Loved how they showed me a diagram to explain it better.

had a situation that my car couldn't accelerated and they fix it quickly. very professional and…read moreexperienced

I previously left a five-star review because I had a good experience here. At the time, EU was…read morehonest enough to tell me I didn't need a tire rotation, which saved me money as a student. Because of that, I came back for multiple oil changes. Unfortunately, my most recent visit was completely different. I was charged a high price for what should have been a simple oil change and cabin/air filter replacement, and I ended up waiting about two hours for the work to be completed. After talking it through with someone more familiar with car maintenance, it became clear that I was likely overcharged for a job that should have been quicker and more reasonably priced. What made the experience worse was the interaction before my appointment. When I asked for clarification about being told I may need "air," EU laughed at me for asking. I'm neurodivergent and sometimes take things more literally, so I was just trying to confirm whether I was being charged for something that is often free. Instead of explaining, I felt mocked for asking a simple question. Because of this experience, I no longer feel comfortable or confident returning here. I'm sharing this as a caution for other customers--especially women and neurodivergent people--who may not be as familiar with car maintenance and rely on mechanics to be honest, respectful, and transparent.

Both Jeff and Ty were friendly knowledgeable and helpful...I will be taking my car here from now…read moreon...

10/10: Friendly, professional, and efficient…read more I was losing tire pressure and while they ultimately couldn't patch the tire, they still asked me to come in to troubleshoot it for me, just to confirm the issue. I'm not mechanically skilled, so it was good to see how they checked for puncturing. And by extension, showing that work is being done. Some other shops will say they did services but just cold pitch it to upsell. I appreciate the team for helping me get on my way. Because they are dedicated to helping people, I'd definitely recommend them. Thank you again.

Where is the 10 star option because they deserve it. Honest, fair, reliable, dependable,…read moretrustworthy, and great workmanship. I live in Newport and my neighbor referred me to them years ago for my Prius that was out of warranty. Fast forward and I have been bringing all my cars even in-warranty vehicles bc the dealers are always recommending work or replacement and I get a second opinion from A&G that always tells me what's really needed or not. My YA daughter brings her jeep in as well and I never have to worry about them taking advantage of her. So many times the dealer tells her she needs XYZ for $$$ and we get a second opinion from A&G for a better price or get an honest opinion from them that the work isn't even needed. These guys truly care about their customers, are genuine, and always so professional. Service is timely with personal updates and automated texts when the work starts and finishes. Shout out to Christian for always taking care of me and my daughter.

I've been taking my vehicle here for a number of years now. The service is excellent, affordable…read moreand efficient. I highly trust and recommend them! Julie H

I had a great experience with Frank and I am grateful he was able to diagnose, troubleshoot and fix…read morethe problem. My regular mechanic was busy and I was far away from the location and couldn't risk driving the car there so I called and spoke to Frank's Mobile. He arrived timely, diagnosed the vehicle, drove it with me to troubleshoot the possible problems and thankfully it wasn't anything major imo. The cost of service was competitive and very fair. He replaced 6 spark plugs and changed the oil, and now my old car has some pep in her step. Thank you, Frank!

Best Mobile mechanic I have ever used. He came to my work on time. I gave him my car and wen tback…read moreto work. 20 minutes later he was finished changing my brake and my headlight light bulb had been changed

We have had 3 inspections. There were no issues. We appreciate their honesty. We live in Long…read moreBeach and make many trips to Costa Mesa. We do not trust quick oil change dealers in our neighborhood.

Great customer service with a smile! Sergio filled my tires for me today and saved my life.read more