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    Diamond Auto Center

    4.1 (9 reviews)
    Closed 8:00 am - 5:00 pm

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    Response time

    2 hours

    Response rate

    100%

    Services - Diamond Auto Center

    Auto brake repair

    Auto steering and suspension repair

    Diamond Auto Center Photos

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    Judy V.

    5/5 Rick is THE GOAT. Honestly a life saver. My car overheated due to the shaft seal leaking coolant. I had my water pump replaced just 2 weeks ago (at another place) and they wanted me to take it back to their place to fix the issue. Why am I going back to the place where the issue started? I was stranded on the side of the road (thankfully not on the freeway) and my friend specifically recommended Rick here. He went above and beyond and took pictures of the issue and gave me the part as evidence. I am in the process of getting reimbursed from the other place. Rick was so helpful, I'm gonna get my car serviced here from now on.

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    1 month ago

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    Rick G.

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    4 months ago

    I took my Audi A5 and Rick took care of me . He installed new battery and programmed my car.

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    Rick G.

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    3 months ago

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    Rick G.

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    1 year ago

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    Rick G.

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    11 months ago

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    Rick G.

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    9 months ago

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    Rick G.

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    9 months ago

    They installed my race tires 10/10 price was real nice also definitely recommend they treated me like family

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    Rick G.

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    1 year ago

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    1 year ago

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    After taking my dad's truck to another alignment business, they informed me they could not do the…read morealignment without buying alignment pins. I took the truck to Matt at Top Alignment as I heard he does great work from a coworker. Matt worked quickly and performed a great alignment and showed the before and after results of the work he did. For the value and the great customer service I highly recommend taking your car here. He even was able to do the alignment without the alignment pins, saving us money. Also, make sure to say hello to the best manager around, Buster, as he walks around ensuring all work is done properly.

    I called ahead to confirm that this shop performs alignments on a Mercedes-Benz Sprinter, and I was…read moretold yes--so I made the trip and brought my van in. When I arrived, the front desk experience was immediately off. When I asked about pricing, I was met with an unprofessional response: "Didn't you already get a quote over the phone?" I simply wanted to confirm details in person and ask if anything additional might be needed. Shortly after, a technician took my van for a quick drive--literally about two minutes--then came back and said they couldn't do anything because the van has a 2-inch factory lift. This didn't make sense to me, considering the vehicle comes that way from the factory and other alignment shops are able to work on it without issue. It honestly felt like a cop-out excuse to avoid doing the work. If this shop isn't equipped or willing to align Sprinter vans with factory specs, that should have been communicated clearly before I took time out of my day to bring it in. Overall, this was a frustrating experience due to poor communication and lack of professionalism. I would recommend they be more upfront with customers about their capabilities and improve how they interact with people in person.

    Tri Auto

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    I am writing to share my deep appreciation for the exceptional service my son and I recently…read morereceived. Last Monday, my son's car was towed from Newport Beach to Tri Auto in Chino because it was making a troubling noise and was no longer drivable. Danny, the owner, diagnosed the issue immediately just by listening to the engine--even before using his sensor equipment to confirm the problem. As always, he fixed the issue quickly and got the car back on the road. We were incredibly relieved not only to have the car running again but also by the fair pricing. While we expected the repair to cost four figures, it ended up being only a couple of hundred dollars. I have been a regular customer for oil changes and routine maintenance, and every visit confirms that Danny and his crew operate with the highest levels of professionalism and honesty. This review is a sincere thank you to Danny and his polite, dedicated team for their excellent workmanship. I highly recommend Tri Auto to anyone in need of car service, especially for Toyota, Honda, and Lexus vehicles. Once you experience their service, you will be a customer for life. May God bless Danny, his business, and his family. Dan

    Was helpful in the past. But unfortunately loyalty doesn't matter nowadays. The visit before he…read moresent me to a mechanic he recommended (even though it was 30 minutes further from me and out of the way) because he was too busy. Then this time he refused to work on my car citing it as a "pain in the ass" and too much work. If you have a Lexus take it somewhere else. First problem was a valve leak an second one was a replacing oxygen sensor for reference.

    Ramona Tire

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    (123 reviews)

    Ramona Tires is a fabulous shop! They've helped us numerous times and we wouldn't consider going…read moreanywhere else. Martin is always very helpful!

    I gave Ramona Tire a second chance after a prior bad experience at another location. I was offered…read morewhat was described as a "deal," but it was simply a slight adjustment from their original quote and not particularly competitive with other pricing I had seen. Since my vehicle was already there, I moved forward anyway. After the service, I barely used the vehicle, as I primarily rent a car for work. Following a period of heavy rain, I entered my car and discovered significant water damage in the trunk area. Clothing, paperwork, and personal items stored in the trunk were completely soaked, and there was a strong mildew odor throughout the vehicle. In the five years I've owned this car, I have never experienced any water intrusion issues. Ramona Tire is the only shop that has ever accessed the trunk area, which they acknowledged. I brought the vehicle back for them to inspect the issue. Over two days, I was told they "couldn't figure out" where the leak was coming from. When I asked whether the taillight assembly had been removed or inspected (as another shop suggested that area could be the source), I was told they were unsure. While Raul, the Assistant Store Manager, was polite and professional, there was a noticeable lack of clear communication and accountability regarding what was actually inspected. The Store Manager did not acknowledge or greet me during my visit. I am now paying out of pocket for additional diagnostics, cleaning, and potential repairs related to water damage that appeared only after their service. After already giving the company a second chance, this experience has been extremely disappointing. Unfortunately, I cannot recommend this location based on my experience.

    Diamond Auto Center - autorepair - Updated August 2026

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