Used Mercedes-Benz C-Class C 300 for sale near Diamond Bar, CA

We recently acquired a 2025 MB 450 GLEe from Walter’s with the help of Christian Aparicio. We our longtime MB owners so it’s a high bar with us but Christian exceeded all expectations. We couldn’t be happier and will certainly contact him the next time we need a MB. Thank you Christian!

Ashley is top notch with knowledge and service and patience! Everyone at the dealership is helpful and accommodating. Thanks for everything, Ashley!

I had such a great experience at Mercedes-Benz of Riverside! Christian was incredibly helpful from start to finish—he really took the time to listen to what I was looking for and helped me find the exact C300 I had in mind. He was patient, knowledgeable, and made the whole process smooth and stress-free. I couldn’t be happier with my new car! I would definitely recommend Christian and this dealership to anyone in the market for a Mercedes.

Most reliable and usefull car I've had as a daily driver. Everything in the interior is placed where it should be found functionally. Power, while not a muscle car, is more than adequate. Gas mileage is excellent. Adjusting from Comfort to Sport make a very noticeable impact on the driving experience from gear shifting to steering...

Honest and straightforward. They made sure the used care we bought was operating correctly before they sold it to us.

It’s my 12th Mercedes, this one by far is the best. My salesman Barry Martin always takes great care with me. The C Class technology is unbelievable

Very cordial and accommodating to customers. Thank you!

No problems. Friendly sales persons. I'm probably the oldest Miata buyer they have sold one to, at 89 years old! I love my Miata!

It was a great experience buying mt car at the dealership. The look and features of the car is what attracted me to it. Donte is a great salesman, he is very knowledgeable. He answered all my questions and show me how to use all the features that the car has.

Christian and Rob were the absolute best to work with at Walter’s Mercedes Riverside. They are very professional, honest and straightforward. So happy with our new purchase and the entire process.

I recently purchased a pre-owned vehicle from Kar Genie. The vehicle price, mileage, condition and features were as advertised online. In the interest of Full Disclosure a sticker was prominently displayed on the windshield with a clear notice, the vehicle was being offered for sale in "AS-IS" condition. The vehicle could be returned, for any reason,within 48 hours with a re-stocking fee. I was given an opportunity to have my mechanic inspect the vehicle before taking delivery. I did choose to have an independent pre-sale inspection even though I had already accepted the sales contract and made a cash deposit before the inspection was done.  This inspection, which gave me a sense of confidence in making the purchase, was well worth the cost. I was satisfied with the terms and conditions so I proceeded with the transaction. The staff was professional and willing to address all of my questions and concerns. The sales staff did a great job of explaining the paperwork. I appreciated the courtesy that each staff member showed me before, during and after the transaction was completed. Having done my homework I had some advance knowledge of the vehicle that I wanted to purchase. That knowledge made it easier for me to work with the Kar Genie sales staff to get the vehicle I wanted. Due to Kar Genies' commitment to customer satisfaction and based on my resent experience with Kar Genie I would use Kar Genie again in the future.

Went from a Sahara Jeep Wrangler to this beauty & i Don’t regret it one bit. Amazing interior & exterior quality. Very clean & comfortable. I love it.

Frank was super chill. Got us a good deal and approved as first time buyer. Thanks guys.

While getting groceries out of my car, My trunk came down on my head (C-300, 2017). Sometimes trunk opens after I lock the car. This is dangerous. What is the problem?

Excellent experience with replacement of cracked windshield with the Brian, Service Manager and Domonique, Service Advisor at The House of Imports in Buena Park, CA

We have a model 3 but we want a more comfortable car with similar performance on gas. This car with all the technology packages are more comfortable than model 3 but as smart in terms of driving assistance.

I had an excellent experience! The staff here are absolutely wonderful—friendly, attentive, and always willing to go the extra mile to ensure a positive experience. Their professionalism and warm demeanor made my visit truly enjoyable. Highly recommend!

Superb all the way around!!! Never had a more pleasant experience with a dealership. Giovanna, Greg and Fred all amazing.

C Class Mercedes are great vehicles. My last one lasted 7 years and 300,000 miles and this one seems even better. Improved interior and exterior styling with many new features. Drives smoothly with power and handles great.

This is my first experience with Fletcher Jones and it has been a good one so far. Buying a car long distance, sight unseen is always a bit of a challenge and potentially a risk. I feel very good about the responsiveness and customer care provided by Fletcher Jones staff. As car delivery is still in front of us, the jury is out on this experience, but I anticipate a very positive outcome. Fletcher Jones reputation provided a lot of confidence.

Excellent treatment I personally care so much about customer experience And I was not disappointed I came as a referral from a friend to buy my first Mercedes-Benz from Ali Mosavi and I’m very pleased He was able to negotiate prices for me without any pressure, making sure I was comfortable with the agreement The car it self it’s amazing, him and his manager David Gonzales went out of they’re way to find me a great deal I would definitely continue recommending them

This car meets all my needs and it had very low mileage and on top of that my note is very manageable to pay. T

Got a wonderful used Fiat from Chris. The experience was good and got in and out in under 3 hours. From stepping on the lot to driving away. Was the most stress free car buying experience I have ever had.

I am pleased with me car so far loving it very nice and clean I like the black on black and the leather seats with my sunroof

Shawn & Dave is an amazing car salesman they were very patient with me and help me very nice i give both of them 5stars each

Well, our experience with Tony was Fantastic! We found a car on the internet that we wanted and proceeded to go out there to purchase. Upon our arrival, Tony greeted us without delay and processed our request. We were out of the dealership within 1.5 hours, now that's a record! He got us our approval in a timely manner and it was all good!!! I would definitely work with them again. Now about the markup, it seems all the dealerships mark up and in order to stay in business so I don't worry too much. Plus the fact the car we purchased was in pristine condition with low miles it was worth the markup and the drive. I am a satisified!

Absolutely love it, loaded with features including self parking. Sports car with different drive modes and yet luxury comfortable. So far not a single issue, very reliable. Highly recommend.

It was a great experience from beginning to end. I got exactly what I wanted and it was delivered to me in perfect condition. I can’t thank them enough.

Ethan and Eddie were both incredibly polite people with a low-pressure approach to selling cars. The quality of their inventory was very high and they are gracious and responsive negotiators. Would definitely buy a car there again, my daughter loves her 428i.

Let me start with the c300 4MATIC is amazing has enough power to feel it and does good on gas I’ve owned mine since 2020 and have aftermarket parts on it and hasn’t gave me a not one big issue love this car 🫶