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January 2024 by Philip Jung
I went to Diamond Bar Mobile to have just one 'USED TIRE" mounted and balanced, and I couldn't believe the price they charged: a whopping $46.50! That's highway robbery for a single-tire service.The staff seemed more interested in squeezing every penny out of me than providing decent customer service. Adding insult to injury, their disrespectful attitude left much to be desired.Take my advice and steer clear of Diamond Bar Mobile Don't fall victim to their price gouging and appalling behavior.You deserve better service elsewhere.
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September 2023 by egmjag
The price and service is as most people write about the smog check. I can't complain about anything. I left my car there before 4pm on a busy Friday, and then crossed the street to buy some groceries. It was ready in less than half an hour before I returned. The only minor inconvenience was the technician who did the smog check. He seemed friendly when I spoke to him on the phone but was aloof and impersonal when I arrived. He didn't seem to want to communicate. Perhaps he had a bad day. Other than that, I highly recommend this place.Service: Auto emissions testing
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July 2023 by Linda P.
This afternoon I had to get a smog test done and I couldn't believe how efficient and hassle-free the whole process was! I went for a Smog Test and they truly exceeded my expectations.First of all, the speed with which they completed the smog test was remarkable. I was in and out of there in just 20 minutes! Considering how busy life can get, this was a huge plus for me. I didn't have to sacrifice a significant chunk of my day for this mandatory task, and that left me with plenty of spare time to get other things done.Aside from the commendable speed, the experience was completely hassle-free. The staff was friendly and efficient!Overall, I couldn't be happier with my experience. In just 20 minutes, they completed the test and provided me with all the necessary documentation. This quick and hassle-free service saved me a lot of time and stress. I highly recommend Diamond Bar Mobile to anyone in need of a reliable and efficient smog test.
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May 2023 by sissi dinh
Came in for smog check. Excellent staff and services. Took 15 minutes and they sent electronically the certificate to DMV.Highly recommend!
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May 2023 by sissi
Came in for smog check. Excellent staff and services. Took 15 minutes and they sent electronically the certificate to DMV.Highly recommend!
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March 2023 by Stevin F.
I like to come to this location to smog my vehicles. The service technicians are super nice and they work fast. I came about 10:30-11:00 and I was leaving within 30 minutes or so. Great location definitely recommend for others to check them out.
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March 2023 by Nick P.
Excellent service very helpful great value nice I was able to drop my car off on a Sunday
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January 2023 by Albert Huang
Great place to take your car for maintenance, repair, tires or smog test. It's a smaller shop so its best to go early as they can get full. They are a STAR smog test station if your smog test requires it. Fuel isn't the cheapest but is reasonable for the area. Convenience store if you need drinks or snacks.
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January 2023 by Robert Han
Went to this gas station to put in gas and buy some soft drinks 2 naked juices 2 Starbucks cold brew cans and two xl white monsters spent a good amount of money only to find out everything is expired almost 1 month ridiculous don’t buy anything here
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January 2023 by Tea C.
The service is quick and honest. There are no hidden fees! The team works hard! Very appreciative of this sudden oil change and affordable pricing!
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December 2022 by Jesse A
I visited the shop in order to ask a simple question about their services. I was told they would be right with me so I waited outside the garage. I waited a couple minutes till I saw the mechanic who asked me to wait start to walk over to talk to me. He passed right by me and started talking to another person that arrived after me. I decided to leave because I felt disrespected.Service: Auto emissions testing
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November 2022 by Mervyn
I have a 30ft Class C with a bike rack and 4 bikes hanging off the back. This site is busy with a line of vehicles ready in the queue. My usual smog guy is out in Jurupa Valley with plenty of space to turn, but I wasn't about to drive in the crazy traffic with crazy gas prices. I understand folks complaining about prices, but heck, everything has gone up. I called at 11:15am and asked if they would smog my RV. In my head I was prepared that they would say no because I looked at the google satellite images of the place (still packed) and drove by earlier that morning and saw a row of security patrol cars ready for smog check. I was dreading the drive to and from in traffic back to DB. To my surprise they said they can take me. They cautioned me that they need to move cars to get the RV around the back and they would get it done by end of the day at 6pm. I was like, okay I'll bring by around noon. I pull up at one of the gas stations, walk in and they immediately started paperwork, no sitting around like my usual smog guy, took my info and keys. I was curious how, but I didn't care. I was free from the drive from hell. Sure enough, I parked in a parking lot next door around 5:30 to check them out from a distance. The RV was at the back where a ton of cars were blocking the way. He finished right at 5:57pm and I walked up as soon as he moved the RV to the front. The price was $149 OTD but worth it from a gas and sanity perspective. They were all accommodating and service was immediate (no waiting around for the customer except for the RV to move). There aren't too many places where an RV can pull up in DB, so this is the place for me.
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September 2022 by Mervyn M.
I have a 30ft Class C with a bike rack and 4 bikes hanging off the back. This site is busy with a line of vehicles ready in the queue. My usual smog guy is out in Jurupa Valley with plenty if space to turn, but I wasn't about to drive in the crazy traffic with crazy gas prices. I understand folks complaining about prices, but heck, everything has gone up. I called at 11:15am and asked if they would smog my RV. In my head I was prepared that they would say no because I looked at the google satellite images of the place (still packed) and drove by earlier that morning and saw a row of security patrol cars ready for smog check. I was dreading the drive to and from in traffic back to DB. To my surprise they said they can take me. They cautioned me that they need to move cars to get the RV around the back and they would get it done by end of the day at 6pm. I was like, okay I'll bring by around noon. I pull up at one of the gas stations, walk in and they immediately started paperwork, no sitting around like my usual smog guy, took my info and keys. I was curious how, but I didn't care. I was free from the drive from hell. Sure enough, I parked in a parking lot next door around 5:30 to check them out from a distance. The RV was at the back where a ton of cars were blocking the way. He finished right at 5:57pm and I walked up as soon as he moved the RV to the front. The price was $149 OTD but worth it from a gas and sanity perspective. They were all accommodating and service was immediate (no waiting around for the customer except for the RV to move). There aren't too many places where an RV can pull up in DB, so this is the place for me.
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August 2022 by Hyson
I have been in car business over 10 year, knew the tricks in smog shop.This smog shop is dishonest place.Before I paid they told me no pre smog obd check, after they did formal smog and failed my car. The worker told me I can come next week try a second price for half of the original price 70$ also he will do a pre smog check for me before I fail again incase.That’s a pretty nasty way to pull customers back.Paid 60$ today to fail. LMAOSee my picture, this car passed smog in Feb this year with no issue.Update: owner like to talk law but say nothing about his dishonest worker “tech” except customer need pay for their “ words “
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August 2022 by Anna S.
I took my car in for a smog check. I went there out of convenience since they charge $75 for SUV. Something so but a smog check for $59.99 and the other fee was to send the electronic certificate to DMV. Very high price but again went out of convenience. They saw my engine light on but tested my car anyways and failed it. Then wanted me to fix it there. I didn't know but they said I can come back after the engine light issue is cleared and the permanent log/monitor is reset and just pay the difference of the smog check. Assumed it was the $15. I came back and they wanted to charge me full price. I could have gotten a smog check elsewhere for cheaper. They reduced the price but in total I spent over $100 for a pass smog check. Why do they test your car and fail when they can just plug that one small device to check if it would pass or not. Or why test when they know from experience, engine light on will be a fail? Wished I had know.
