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    DNZ Automotive

    4.6 (161 reviews)
    Closed 8:30 am - 5:00 pm
    Updated 3 months ago

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    Response time

    10 minutes

    Response rate

    100%

    Services - DNZ Automotive

    Check engine light

    Engine oil light diagnosis

    Auto general diagnosis

    22 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

    Fuel system cleaning

    Oil changes

    Auto repairs

    Auto battery or electrical system repair

    Auto brake repair

    Auto engine repair

    Auto exhaust 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

    DNZ Automotive Photos

    Recommended Reviews - DNZ Automotive

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    Used my computer to read codes after they cleared them-B1S1 still front manifold. They just cleared codes, didn't fix anything

    $1350 Repair Failed Immediately - Check Engine & Overheating Review: In May 2025,I paid over $1,350 at DHZ Automotive for a major repair that included a new timing belt, water pump, and thermostat (see invoice). The result was catastrophic. Immediately after driving away, the check engine light came on and the van began overheating again, reaching dangerous levels (see photos of the dashboard gauges). I returned immediately. Their own scanner pulled codes P1130 and P1135 (see photo), which are related to the air-fuel sensor and heater circuit--issues that were not present before their work. Despite this evidence, the service advisor and owner dismissed it as a "coincidence" and asked for more money to fix the problems they created. The disorganization was shocking. An employee actually had to call me and ask me to text them my own invoice because they had no record of what work had just been done on my car. How can you trust a shop to warranty their work if they don't even keep their own records? They refused to honor their own 1-year warranty. I've had to use my own scanner to monitor the car myself (see photo). The attached invoice proves the work they did. The attached photos prove they failed. This shop cost me over $1300 and left my van in a more dangerous state than when I brought it in. Avoid this place at all costs.

    DNZ is the best
    David R.

    DNZ works on all of my families vehicles, I've lived in the Costa Mesa area for over 30 years and this is my go to mechanic. It doesn't matter what the situation is if it's not something he works on he'll put you in the direction where you can get it fixed. The owner and his staff are very friendly and they're extremely helpful. I brought in our BMW M3, our Honda Truck and just the other day I saw him working on a new model Chevrolet Corvette. if you're looking for an honest, friendly and really good mechanic then look no further because you found it.

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    5 months ago

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    9 months ago

    Great service great pricing and transparency was great. Not much else you can ask for automotive work

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    1 year ago

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    1 year ago

    Caesar helped me with a loose bottom panel on my truck. Went in with no appointment and he fixed my problem in 5 minutes. No hassle at all.

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    4 years ago

    Repaired my AC at a fair price and got it done quickly! Very good service and nice team!

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    5 years ago

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    3 years ago

    Great shop knocked the problem out great discount little issues the took care of it legit

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    Page 1 of 5

    DNZ Automotive Reviews in Other Languages

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    Review Highlights - DNZ Automotive

    George was super friendly and chill and made it clear what kinds of services I needed for my "classic" i.

    Mentioned in 9 reviews

    Read more highlights

    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.

    ExperTec Automotive

    ExperTec Automotive

    4.6
    (421 reviews)

    Came here to drop off my Jetta -- been coming here for years, they are HONEST…read more In the age of AI and all the bells and whistles , you yearn for authenticity and old school environment where word is your bond This is that place. I've known Gary for over a decade - the culture in this company is one that fosters long term Employees like Gary who love to work there I'll only service my cars here

    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.

    DNZ Automotive - autorepair - Updated June 2026

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