New and used 2025 Mercedes-Benz C-Class sedans for sale near Diamond Bar, CA

I had the privilege of working with Cristian when I purchased a beautiful mercedes benz recently. His professionalism and enthusiasm in helping me find the perfect car made the entire process easy and smooth. I would and already have, recommended him to friends & colleagues.

Rusnak Arcadia provides exceptional service, and Yohan Chen is a big part of that experience. As a service advisor, Yohan is highly professional, attentive, and knowledgeable. He takes the time to explain everything clearly and ensures that all service needs are handled efficiently and with care. His friendly attitude and attention to detail make every visit smooth and stress-free. With professionals like Yohan on the team, it’s easy to see why Rusnak Arcadia is known for outstanding customer service.

Yasser hooked me up. Got a good deal and the sales team took care of all my needs and worked with me to get me all that I asked for in the transaction.

Just purchased my very first car and everyone over at Walter’s Mercedes was incredibly kind and helpful during the entire process! Big thanks to Alfonso Hernandez who was extremely friendly!! He really made the experience significantly better :) Thanks to the management there as well, esp Hae Lee who was also very helpful and nice! Will definitely recommend this dealership to anyone I know that’s looking for a great deal on a Benz!

Very friendly and professional staff. Will recommend to my friends for sure.

Update to a previous experience Today I took my car back to Glendal Cal Star My issue was resolved at no charge. I’m happy it was resolved and my car was repaired. Thank you

Everyone was amazing at Mercedes Benz of Ontario. Great customer service. Diana was my point of contact and she was very helpful and insightful. Will definitely return here for my future services.

Excellent! Dominique and Ryan are awesome. Very smooth service and timely. the overall experience was great as always. have been a customer over 25 years

Jag is hands down the best service advisor I?ve worked with. He?s professional, honest, and always makes sure everything is taken care of quickly and smoothly. I trust him completely with my car and always leave feeling confident and valued. Highly recommend!

I went in to have Service A done to my car. They got me in and out pretty quick on a Friday, Im definitely bringing my cars back to this dealership

We picked up a preowned EQS and the transaction was smooth. I'd been in contact with Simon prior to just walking in. I wish they negotiated price, but I guess Autonation dealers stopped doing that...I'm old school, I'd prefer to negotiate. The finance process could have been a bit quicker and smoother. All said, we got there a bit before 1pm and were out around 4pm. We had to stay on top of things during the finance process for a few promised items to ensure we'd get a due bill. Signed a bunch of papers, but when I got to the one that committed my dollars, I to refused to go any further until I got the due bill. Just make sure you know the buying process and advocate for yourself. Every dealer tries to squeeze you, HOI is on the spectrum of one of the better experiences. We didn't experience any high pressure tactics, so we appreciate that. I think Simon and his partner Salem are good sales guys to deal with.