Used BMW X3 for sale near Eastvale, CA

I recently purchased an Acura MDX from BMW of Buena Park, and the experience was absolutely stellar from start to finish. Gregory Martinez went above and beyond to make the entire process smooth and stress-free. His communication was clear, timely, and honest, which made me feel confident every step of the way. Gregory?s professionalism and genuine assistance stood out the most?he answered all my questions with patience and made sure I was comfortable with every detail of the purchase. I never felt pressured, only supported. It?s rare to find someone who truly listens and makes the car buying process enjoyable, but Gregory delivered exactly that. I highly recommend BMW of Buena Park, and especially Gregory Martinez, for anyone looking for excellent customer service and a seamless buying experience.

I've had the 2025 X3 30 now for 5 months and it is great! It replaces our 2022 X3 that was recently totaled and both passenger walked away with just bruises so it is a safe car! This is one reason I purchased another X3. Big difference on the interior panel than the 2022 as everything has gone to touch screen for all controls which I not real fond about, even the owners manual is on the touchscreen software, The twin turbo gives plenty of power and the gas milage has improved from the older model. The gears change smoothly and the ride is also smooth. You now get a spare tire since BMW did away with the run flat tires which I hated as they did not wear great. The accessories offered in their package covers everything you want in an auto. I don't understand why the rear exhaust are hidden though as I like the chrome exhaust on my old 2022. This year the 3 was redesigned and it is slightly bigger.

Always a great experience with Monica and Monrovia, super helpful and the team tries to make sure all of my wife and I needs are met.

Albert was absolutely outstanding throughout my entire car buying experience. His professionalism, knowledge, and above all, his incredible patience made the process seamless and enjoyable. He took the time to answer all of my questions thoroughly and ensured I felt confident every step of the way. I am beyond happy with my purchase, and I can genuinely say that his exceptional service was the deciding factor in choosing BMW. It is rare to come across someone who truly goes above and beyond for their clients, but Albert did exactly that. I am grateful for his dedication and highly recommend him to anyone considering a BMW.

Only have been driving the car for a week, but it is clearly the best SUV I have experienced. My wife drives the Mercedes 300 - a fine car as well, but I have always preferred BMY engine performance and handling. The X3 is simply a pleasure to drive.

It was a great experience overall. The staff was very professional and friendly, and they explained everything clearly. The service was completed quickly, and my car was returned in excellent condition. I really appreciate the attention to detail and the comfortable facilities. I would definitely recommend this dealer to my friends and family.

BMW X3 an excellent car. I like the performance and enjoy using this luxurious car.🚘 I very much like having all the safety features.I appreciate BMW service.

Very professional, treated me with respect, explain the process that my M3 will undergo. Deliver on time as promised, Loaner was reserved for me.

Our salesman, Jonathan is a true professional. The dealership made this a painful experience. Never going back. The only reason we put up with 2 days of getting jerked around was because they were the nearest dealership that had the vehicle we wanted in stock. We'll never return.

Very good customer service. Convenient location for me and follow up with the repair problem. Get out honest advice valuable from the advisor and timely .

I live in Las Vegas. After being lowballed by multiple dealerships in Vegas, I decided to try my luck with selling my car privately. Omar from STG reached out and offered me the private party value for my vehicle, as a trade-in to STG. He said STG could pick the car up for a small fee or I could drive it down to their location in Montclair, CA. I was very hesitant on working with STG, as there are so many horror stories about crooked used car dealers. I felt I would be in a vulnerable position if I were to drive the car there and they were to lowball me. I decided the risk was worth it to me for the extra money, and I drove it down. Immediately, Danny greeted me and started the inspection process. I had been upfront and honest with them about small imperfections the vehicle had, so there were no surprises. After inspecting the car, Danny confirmed that they would purchase the vehicle from me for the previously agreed-upon price. This is a standup dealership with great customer service. I feel I was treated very fairly and I would absolutely recommend them to anyone looking to get top dollar when trading their vehicle. They even gave me a ride to the airport after the deal was completed. Thank you for making the process so easy!

I have had three BMWs, all with great reliability and high satisfaction, but this is my first BMW SUV. After 5 weeks of ownership, my 2024 X3 is on its way to becoming my all-time favorite. The handling is great, the safety features superb, and the comfort and luxury appearance have surpassed my expectations. We are so happy with this car that my husband is talking about getting one for himself, and he is an Audi and LandRover fan. BMW, thank you for your continued dedication to quality and reliability.

Great team ,friendly staff . Danny brewer was great and Sam the manager was very professional and pleasant to deal with

It's all about the B58 in the M40i. I dinged it one star on comfort because this little SUV rides quite "sporty" even in Comfort mode. I absolutely love this about the car, but I could see how some would feel this is too harsh as it is not a luxurious, cushy ride. But tuck this little beast into a fast corner and it's just...wow! This little German SUV is a sleeper. While the X3M is very nice, the M40i is the perfect balance in my opinion. BMW has really stepped up their game in the X3.

Thank you David R, and Rene for your help getting my first car! Amazing experience!

Austin, Zach, and Jaime were exceptional , they got a a great deal would definitely recommend to family and friends!

Great car love bmw very reliable never had any mechanical problems great in the deep snow Excellent acceleration Handles and drives like a sport score

Amazing service! Caring and attentive to my auto requests. Chris was a tremendous help. He was so patient and kind. Go get a car from STG! I have nothing but good things to say about my experience

I love this car I bought it for my wife for her Birthday and she just loves it. The ride is great and all the extras it has it perfect

Randy at STG auto was amazing and professional. He was able to work with me to get the rate I want and super satisfied. Highly recommended!

its really a amazing when i sit on seat then i realize like a king so i will recomend to everyone which they want to live luxurious life or resemble like a king

Love this place , love the service, love how fast my process was to get into my M4 .best dealer I’ve ever made business, super polite , humble and very respectful, they even car washed the vehicle, man come one I was like whatttt!!! Super happy I drove out from Hollywood and I was not disappointed. Check it out for yourself!!!!!!

Tom & Jerry in real life way better than the cartoon. Got me exactly what I wanted in a reasonable amount of time.