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Used
Mercedes-Benz cars
for sale
near
O Fallon, MO
under $899,990
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Mercedes-Benz Certified
2025 Mercedes-Benz GLS 450
Vehicle information
Reviews
Plaza Motor Company
Mr. William took pride in doing every thing he said when l came in to pick up the car their were so issues so I was having some problems accessing the issues Mr. William took great care of me and my problems that put me in the car of my choosing.
I’ve had many Mercedes-Benz models over the years,
I’ve had many Mercedes-Benz models over the years, including AMG’s and the GLS 450 a wheel drive with 23 inch wheels makes this car track like a race car. Out of all the Mercedes-Benz models this is the best one you’ve ever had. The second row seats reclining just like the front row seats privacy shades and the third row comes in handy when needed plenty of cargo space for all those trips to the airport to pick up family and friends. It gets great gas mileage then other SUVs and it doesn’t look like a box like it’s competition. I had the dealer put the Mercedes-Benz standup medallion on the hood even though it has a huge Mercedes-Benz insignia on the front. I just like to see the stand up Star medallion from the driver seat guide me down the road..
Mercedes-Benz Certified
2026 Mercedes-Benz GLE 350 4MATIC
Vehicle information
Reviews
I come in because of Pam Oakes she is the best at
I come in because of Pam Oakes she is the best at service and is always available. She is also logical when it comes to needing service. If it doesn’t”t need it than we w2ait. There is no pressure to buy . It’s my First Mercedes and if I buy another one it will from Plaza as long as she is there. Patsy Holloran
The Mercedes Benz GLE 350 is by far the best luxury SUV
The Mercedes Benz GLE 350 is by far the best luxury SUV we have ever owned. I truly can't praise it enough. I honestly didn't need to take it out on the road to be convinced, I was still in the parking lot and knew I wasn't leaving without this vehicle. The interior ambient lighting and the personal welcome message when I get in is 2 of my favorite features of this vehicle. Also love that we can program the seat adjustments too, no more having to adjust the seat back to where I need after my husband drives it, just hit a button and my seat is back on the position I need. And I have never drove anything that drives this smooth!!
Mercedes-Benz Certified
2025 Mercedes-Benz GLS 450
Vehicle information
Reviews
Beth Freeman was our salesperson.
Beth Freeman was our salesperson. She made my 84 year old mother comfortable and at ease with purchasing her car. Friendly, professional and knowledgeable. I would highly recommend seeing Beth for a car purchase. Zina
Mercedes-Benz Certified
2025 Mercedes-Benz GLC 350e
Vehicle information
Reviews
Plaza gave me a wonderful experience Lauren truly made it
Plaza gave me a wonderful experience Lauren truly made it feel like home. I will come back and refer others. I will definitely be returning.
This car is dynamite!
This car is dynamite! I traded a 2023 EQB for it, and I am very pleased. The hybrid feature is the perfect response to all electric range anxiety. Ride quality is perfect. And it is a wonderful size! I opted for the AMG exterior/interior package. And it makes a pretty big difference between the regular model and the upgrade. I am well satisfied.
Used
2025 Mercedes-Benz AMG G 63 4MATIC
Vehicle information
Features
Mercedes-Benz Certified
2023 Mercedes-Benz E-Class E 450 4MATIC
Vehicle information
Reviews
I have purchased a few cars from Mercedes Benz of STL
I have purchased a few cars from Mercedes Benz of STL over the years. Most recently last week bought AMG GLC 63E S working with Scott Gilbert. The experience was fast, smooth and got us going on our way same afternoon. Scott followed up with me a few times since to make sure everything was in order and we couldn't be happier
Overall, a well-built automobile.
Overall, a well-built automobile. Over the terrible roads that exist in New Jersey, the car can be a bit harsh but stable. I am happy with the choice of model and it performs very well.
Mercedes-Benz Certified
2022 Mercedes-Benz GLC 300
Vehicle information
Reviews
Great dealership.
Great dealership. Being a out of state purchase. Scott Gilbert was very helpful made everything smooth and easy and simple. I recommended Scott to anyone looking for a vehicle. Also Steve in finance made all the paper easy. They sent paperwork overnight with a over night return envelope. The whole process was smooth and simple. Thank you will use you guys again in the future.
This is our second GLC 300.
This is our second GLC 300. We love the size and features for our needs (two people). Good mileage 27-29+ around town, 30-32 highway. Smooth ride, easy handling, and I think, nice styling. Newer models have larger screen and are more electronically controlled from the screen. Fields of Orange Park, Fl. has great Service, not cheap, "Mercedes" nuff said, but they will take care of you.
Mercedes-Benz Certified
2023 Mercedes-Benz GLC 300
Vehicle information
Reviews
Great experience purchasing our new car from Lesa at MB
Great experience purchasing our new car from Lesa at MB St Louis! She is so thoughtful ans thorough and keeps her clients well informed throughout the car buying process. She made sure to answer all questions and made it so easy. She is approachable and made sure all our questions were answered. The whole dealership has been excellent. We are leaving audi after 15 years and are so happy to find the perfect Mercedes with Lesa at your dealership! Thank you so much.
Love My 2023 GLC 300 4MATIC!
It’s been a great month of getting to know my new vehicle! I waited 12 weeks from the date of order to pick up my new 2023 GLC, and it was definitely worth the wait! I selected the Exclusive trim, Driver Assistance and AMG Line packages with several add-ons, and I could not be happier. My previous car was a fully loaded 2019 GLC 300, and it was unfortunately totaled in early February on a road trip. My first one was the favorite car I had ever owned and it kept us so safe during our accident, so I knew I wanted a second one. I did not realize I would have to wait so long to get a new one but I am happy I did not settle for anything else. The drive is sporty and smooth, and very quiet. It has a slight hesitation from a full stop. Once you take off it picks up very quickly and sport mode on the freeway is great. The upgraded electronics have been easy for me to understand after I read through the owners manual. One recommendation I have is to turn off the automatic speed change if you are using cruise control and happen to go through a construction zone. The cameras pick up the sign and slows the car down very quickly. I prefer to adjust to those situations manually. The car feels a bit bigger and is so attractive and comfortable. It feels much more luxurious than my 2019 did, and in my opinion the upgrades are worth the price. I absolutely love this car! Happy Shopping!
Used
2019 Mercedes-Benz GLC 300 Base
Vehicle information
Features
Reviews
Loyal customers
We recently purchased a certified pre-owned vehicle at Frank Leta Acura and this is our second purchase with the dealership. Each time we’ve received excellent customer service. Kevin Baker was our Product Specialist that helped us with our second purchase and was very instrumental in finding us the right vehicle with the options we were looking for. He was very good with follow up and keeping us updated on our vehicle. We’re really happy with our purchase and the services that we received at Frank Leta Acura!
Traded it in after 19,000 miles
I traded mine in after 19000 miles for one reason, the run flat tires. they are $300 a piece and last 15000 miles. They might be an option, if you don’t mind putting new and expensive tires on every year but they don’t perform in snow after 5000. They don’t perform great when new to be honest, just better in snow with more tread. I loved the car, but living in hilly, snowy Pennsylvania, it just wasn’t practical. Think twice if you drive in snow or rough roads or just don’t feel like getting new expensive tires every year
Mercedes-Benz Certified
2025 Mercedes-Benz GLC 300 4MATIC
Vehicle information
Reviews
Finding a car that i am looking for been smooth speaking
Finding a car that i am looking for been smooth speaking to Lauren. She understood what kind of vehicle I need within my price point and style I wanted. She's just great.
Owned for 2 months, replaced a 2023 Buick Envision
Owned for 2 months, replaced a 2023 Buick Envision Avenir. Much better car, more comfortable, more luxurious. Used to Drive Lincolns, stopped as they are now made in China. Compared to Jaguar and Cadillac, clearly better car.
Used
2017 Mercedes-Benz S-Class S 550
Vehicle information
Features
Reviews
Great staff!
I found the exact car I was searching for and this dealership was above my expectations during the buying process.
Amazing vehicle, but only buy new if you want the S63,
Amazing vehicle, but only buy new if you want the S63, the Maybach, or your just really rich, if not, then just wait 5 years, and get it for 70 grand! The value is so low because you can just wait for it to depreciate like crazy. But overall, this is an awesome car.
Mercedes-Benz Certified
2025 Mercedes-Benz GLC 300
Vehicle information
Mercedes-Benz Certified
2026 Mercedes-Benz GLB 250
Vehicle information
Mercedes-Benz Certified
2026 Mercedes-Benz GLB 250
Vehicle information
Mercedes-Benz Certified
2025 Mercedes-Benz GLC 300
Vehicle information
Reviews
Just wanted to share what a wonderful experience I had
Just wanted to share what a wonderful experience I had leasing my new Mercedes from Lesa. She was great returning my phone calls and answered any questions I had. I will definitely use Mercedes St. Louis in the future.
Used
2017 Mercedes-Benz S-Class S 550
Vehicle information
Features
Reviews
I WAS VERY SATISFIED WITH THE DEAN TEAM AND BRANDY
MY EXPERIENCE WAS VERY GOOD. BRANDY PETERS WAS MY SALESPERSON. SHE HELPED ME AND TOOK VERY GOOD CARE OF ME AND THE CAR I BOUGHT
Such a superb motorcar
My third big Mercedes. Great power. functional systems. superb reliability. EXPENSIVE but you get what you pay for. I had my first MB for 17 yrs with two unscheduled repairs.
Mercedes-Benz Certified
2025 Mercedes-Benz GLC 300
Vehicle information
Mercedes-Benz Certified
2025 Mercedes-Benz GLC 300
Vehicle information
Mercedes-Benz Certified
2023 Mercedes-Benz E-Class
Vehicle information
Reviews
I bought this to replace an aging Audi A6.
I bought this to replace an aging Audi A6. Wanted similar luxury, safety, and tech in a bit of a smaller vehicle. While I got what I was searching for, there is definitely a significant change in the luxurious feel in the ride. My 2019 Audi definitely had a more lush and comfortable feel. This E class is a 4cyl TC while the Audi was a 6cyl. I know that make a big difference on power. This E class is not under-powered, it's just that the Audi was a beast. If I had to make the purchase again, I'd get the 6cyl E450.
Mercedes-Benz Certified
2022 Mercedes-Benz AMG SL 63
Vehicle information
Reviews
I wanted to take a moment to share my recent experience
I wanted to take a moment to share my recent experience as a new and satisfied Mercedes-Benz customer. The sales team at the St. Louis Mercedes dealership was nothing short of amazing, and I was particularly impressed by Lesa Lowery. Lesa consistently exemplifies professionalism and integrity in every business transaction. Her caring and calm approach made the car buying experience truly memorable. She is highly knowledgeable and goes above and beyond to ensure her customers are satisfied. Lesa made my car buying journey an enjoyable one. I am an extremely satisfied new Mercedes-Benz owner Thank you, Darryl Sams Extremely satisfied new Mercedes-Benz owner
2022 SL63 is an amazing car!
Awesome power, incredible braking, unbelievable handling and a fantastic exhaust note!!!! This car is absolutely amazing! The interior is gorgeous and the seats are incredibly comfortable. The Burmeister sound system is terrific. I never want to get out of the car. If you can’t ever seem to get enough power, it’s worth the money to get the SL63’s engine over the SL55. The extra 100+ horsepower gives you an experience you won’t believe.
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Used Mercedes-Benz by price
Mercedes-Benz under $899,990 by city
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Mercedes-Benz under $899,990 in O'Fallon, MO
89 Great Deals out of 260 listings starting at $6,000
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Mercedes-Benz under $899,990 in O Fallon, MO
89 Great Deals out of 260 listings starting at $6,000
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Mercedes-Benz under $899,990 in Dardenne Prairie, MO
87 Great Deals out of 257 listings starting at $6,000
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Mercedes-Benz under $899,990 in Lake St. Louis, MO
86 Great Deals out of 250 listings starting at $7,250
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Mercedes-Benz under $899,990 in Lake Saint Louis, MO
86 Great Deals out of 250 listings starting at $7,250
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Mercedes-Benz under $899,990 in Cottleville, MO
89 Great Deals out of 261 listings starting at $6,000
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Mercedes-Benz under $899,990 in St. Paul, MO
82 Great Deals out of 243 listings starting at $7,975
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Mercedes-Benz under $899,990 in Saint Paul, MO
82 Great Deals out of 243 listings starting at $7,975
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Mercedes-Benz under $899,990 in St. Peters, MO
89 Great Deals out of 261 listings starting at $6,000
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Mercedes-Benz under $899,990 in Saint Peters, MO
89 Great Deals out of 261 listings starting at $6,000
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Mercedes-Benz under $899,990 in Weldon Spring, MO
89 Great Deals out of 262 listings starting at $6,000
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Mercedes-Benz under $899,990 in Wentzville, MO
58 Great Deals out of 187 listings starting at $8,500
Mercedes-Benz under $899,990 in O Fallon, MO by model
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Mercedes-Benz GLC 300 under $899,990 in O Fallon, MO
21 Great Deals out of 48 listings starting at $14,750
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Mercedes-Benz GLE 350 under $899,990 in O Fallon, MO
14 Great Deals out of 37 listings starting at $10,495
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Mercedes-Benz GLA 250 under $899,990 in O Fallon, MO
3 Great Deals out of 27 listings starting at $21,800
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Mercedes-Benz E-Class under $899,990 in O Fallon, MO
8 Great Deals out of 26 listings starting at $6,750
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This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.
