Diamond Bar Auto Service & Body

The boss is really kind. I am a single woman, one of the most outdated stereotype about auto shops and women is that they like to scam us. At first, there was no one I could see out front, so I went to check another shop (Honest) in the corner for an estimate for my car issue, which came out to be over $320. I went back here and ran into the boss and he did an engine check, told me the issue was my car needed to warm up essentially since we’ve been having cold weather and explained some other things to me, and sent me on my way with no charge. Just asked me to come back if I needed anything else. I will come back solely because I appreciated his honesty. It’s been over a month and my car has zero issues that need fixing.

why are you going anywhere else? after a cross-country trip, i took my vehicle to a chain service place for an oil change. a while later, i started to see oil drips in my parking spot. i called diamond bar auto and they had me come right over. the mechanic had a nose around under the hood and under the chassis, showed me the problem, reassured me that i could manage it until i got home to my regular shop, and declined any payment for his time. honest, kind, and professional. i promise you’re not getting this kind of service from the chain places.

They love only doing oil changes. If you have other bigger issues, they rather tell you not to fix it. Thought they were trying to concern your money at first, but it was that they do not want to get involved with hard jobs. The boss here is about 70 years old. 95% of what they do is Oil Change only.

They are real experts. I've been to multiple repair shops to fix my car, but they didn't make it in the end, they didn't know what the problems were exactly. The price is also affordable. If you live near Diamond Bar, I would like to recommend it.

They are very honest. Thought I had major oil leak turned out last place ( pep boys) did not put washer back on oil plug. With oil all over the place when I first took it to Choi he thought maybe needed to change all the gaskets turns out it was the plug. Huge savings others might of stuck to replacing all gaskets.