Save your search and get notified when new inventory arrives.
Contact seller
Customize your budget
*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.
About your privacy: Cars.com is asking for your ZIP and credit rating because it helps us to make an educated guess at your sales tax and loan interest. These two factors can greatly change your monthly payment.
Used
2021 Mercedes-Benz C-Class C 300 4MATIC
for sale
near
Cos Cob, CT
- 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
2021 Mercedes-Benz C-Class C 300 4MATIC
Vehicle information
Features
Reviews
EXCELLENT CUSTOMER SERVICE
Mr ANTHONY ANGELO was the best customer service we have experienced in quite a while. REPRESENTATIVES of this nature should be commended and placed in charge of that department .EXCELLENT CUSTOMER SERVICE!
The features are amazing,stylish .
Great driving comfort,loaded with features. Safety is definitely a priority with the MB engineering . I have leased a total of 4 Mercedes and totally satisfied with every single one.






Used
2021 Mercedes-Benz C-Class C 300 4MATIC
Vehicle information
Features
Reviews
My wife and I needed a second family vehicle.
My wife and I needed a second family vehicle. Already having a 2010 Honda Accord which we fully like, that is still running strong with only basic maintenance upkeep all these years. We decided to again look for another Honda because of Honda's excellent well made dependable vehicles that are headache free. We just purchased a new 2025 Honda Pilot Elite through Sales Rep. Deniz Akad at Paragon Honda in Woodside, NY on 5/14/25. Deniz was great. He was very helpful when I worked out pricing with him online and was able to supply us with the exact Pilot trim and color we were looking for. When we came into the Paragon Honda dealership to go through the purchase, Deniz and all his fellow co-workers at the dealership were very professional, helpful and polite. Never felt any pressure during out whole Pilot purchase and made buying a vehicle through Deniz and the whole Paragon Honda dealership a delight! Our two young boys not only like riding around in the new Pilot, which is a great vehicle, but they also bug us for the keys to just sit in it in the driveway. Thank you again Deniz!
Most reliable car I ever drove
This car met all of my expectations. This car is very reliable. All of the features are great. Love the color. Smooth ride on the road






Used
2021 Mercedes-Benz C-Class 4MATIC Sedan
Vehicle information
Features
Reviews
Best dealership around!
The service was excellent! The workers really worked with my situation to make sure I went home with exactly what I was looking for. Would recommend 10 out of 10!
Most incredible car I’ve ever owned.
This is my second Mercedes-Benz. It’s absolutely the most incredible car I’ve ever owned. I was blessed to be able to custom order this car to have everything I wanted and more inside and out! It literally came straight from Germany to the dealership for me. It drives like a dream. It’s absolutely gorgeous. The technology inside is so amazing! It can drive economically. It can drive more sporty if you want it to. It has so many options and settings for drivers of all kinds. Needless to say, it’s pure luxury inside. You’ll feel incredibly spoiled!






Used
2021 Mercedes-Benz C-Class 4MATIC Sedan
Vehicle information
Features
Reviews
Jeremy was fantastic to work with, transparent and
Jeremy was fantastic to work with, transparent and committed to providing all the information I needed to make an informed decision. My experience purchasing a Mercedes-Benz C-Class C 300 at CPM was stress-free. If you're looking for a dealership that prioritizes customer satisfaction, I highly recommend CPM.
Haven't put many miles on due to snow and ice.
Not enough miles driven to fairly evaluate but look forward to driving when weather is better. I have high expectations! I'll need time to get used to the console controls.






Mercedes-Benz Certified
2021 Mercedes-Benz C-Class C 300 4MATIC
Vehicle information
Features
Reviews
Salute to Mr. David Garcia, MBenz Sales Associate
I highly commend Mr. David Garcia for his knowledgeable, professionalism and caring follow-up manner in which he demonstrated, during the purchase of my Mercedes Benz. Although I was disappointed in dealing with the sales/financial manager for his inappropriate, condescending attitude, Mr Garcia was able to diffuse our differences and finalize the purchase.






Used
2021 Mercedes-Benz C-Class 4MATIC Sedan
Vehicle information
Features
Reviews
There was a misunderstanding in regards to the online
There was a misunderstanding in regards to the online pricing, but Jeremy reached out to me and we straightened it out. Upon making the deal over the phone and text, I was able to signed remotely, and pick it up on a Sunday. The vehicle was immaculate and I now wonder why it took me so long to upgrade my vehicle. I even left something in my trade in, which they are said they are mailing back to me. Thank you Jeremy for being so attentive. His customer service is top notch. Danzel and Hector made sure I got out of there as quickly as possible. Thank you team Stream Auto Outlet.






Mercedes-Benz Certified
2021 Mercedes-Benz C-Class 4MATIC Sedan
Vehicle information
Features
Reviews
Great experience buying the car I always wanted here!
Great experience buying the car I always wanted here! Victor Varga and his friendly and adept colleagues made the whole experience simple, pleasant, and thorough. And with their no-pressure help, I purchased a great car with the right maintenance plans to make it last. Highly recommend a visit to Goldens Bridge Mercedes Benz; these friendly and super-experienced professionals make car buying what it should be! 5 stars for sure!!






Used
2021 Mercedes-Benz C-Class C 300 4MATIC
Vehicle information
Features
Reviews
I had such a great experience here.
I had such a great experience here. From the moment I walked in, Sergio really listened to what I needed and didn't try to push me into anything outside my budget. They took the time to show me several options and answered all my (many) questions patiently. It felt like they genuinely cared about finding the right car for me. The whole process was surprisingly enjoyable. Thanks, Sergio!






Used
2021 Mercedes-Benz C-Class C 300 4MATIC
Vehicle information
Features
Reviews
We looked at several new cars but I really liked the
We looked at several new cars but I really liked the Outlander. The staff was so kind and really listened to what we wanted and the price range we had to adhere to…They treated us respectfully and helped us achieve our goal.






Used
2021 Mercedes-Benz C-Class 4MATIC Sedan
Vehicle information
Features
Reviews
Bought a ride from Joseph recently and we were sooo
Bought a ride from Joseph recently and we were sooo pleased so we decided to come back. He was so helpful the whole way through, and found the perfect car for our daughter. Highly recommend!






Used
2021 Mercedes-Benz C-Class C 300 4MATIC
Vehicle information
Features
Reviews
Great experience with this dealership!
Great experience with this dealership!!! Highly recommend. Tom Clancy, my salesman got me in a brand new better model car for my 2nd lease with them, and I am extremely happy. The sales managers, Anthony Muniz and Phil were also wonderful to work with, as well as Barbara Lane, the finance rep.






Used
2021 Mercedes-Benz C-Class 4MATIC Sedan
Vehicle information
Features
Reviews
Customer service by Mitsubishi sales
It was great I didn't feel pressure by the sales person Can you inform me of a lot of things I didn't know made me Trust the information he was giving me






Used
2021 Mercedes-Benz C-Class 4MATIC Sedan
Vehicle information
Features






Used
2021 Mercedes-Benz C-Class 4MATIC Sedan
Vehicle information
Features
Reviews
Great car.
Great car. In fact, I would treat it like a new gadget. Using the autopilot is a real thrill.






Used
2021 Mercedes-Benz C-Class C 300 4MATIC
Vehicle information
Features






Mercedes-Benz Certified
2021 Mercedes-Benz C-Class C 300 4MATIC
Vehicle information
Features
Reviews
Purchased a car via web.
Purchased a car via web. Assigned sales associate, Sunni Wang was very professional and responsive and made the transaction enjoyable.






Used
2021 Mercedes-Benz C-Class 4MATIC Sedan
Vehicle information
Features
Reviews
My salesman Bernie makes car buying easy.
My salesman Bernie makes car buying easy. He’s very knowledgeable and a credit to the dealership. Celine the finance person is very good and also a credit to the dealership. I will have no problem recommending Blasius !






Used
2021 Mercedes-Benz C-Class 4MATIC Sedan
Vehicle information
Features
Reviews
I had a highly positive experience purchasing my BMW X5
I had a highly positive experience purchasing my BMW X5 at Victory Mitsubishi with salesperson Derek and his team. He was very helpful, courteous, and professional. I plan to purchase my next vehicle here when my 16-year-old obtains their driver's license.






Mercedes-Benz Certified
2021 Mercedes-Benz C-Class C 300 4MATIC
Vehicle information
Features
Reviews
The best salesman
Giovanni is one of the best salesman that I have ever met he does a great job ..I bought about four cars off of Him he does great service. And gets the deal done. ….






Mercedes-Benz Certified
2021 Mercedes-Benz C-Class C 300 4MATIC
Vehicle information
Features
Reviews
I had a very good experience at Silverstar Motors.
I had a very good experience at Silverstar Motors. Their service department was courteous and very professional. They managed my problems quickly and efficiently. Joseph
Mercedes-Benz C-Class prices by year
Model year | Prices from | Deals |
---|---|---|
2025 Mercedes-Benz C-Class C 300 4MATIC | $39,988 | 20 Great deals |
2024 Mercedes-Benz C-Class C 300 4MATIC | $39,874 | 18 Good deals |
2023 Mercedes-Benz C-Class C 300 4MATIC | $25,499 | 18 Good deals |
2022 Mercedes-Benz C-Class C 300 4MATIC | $22,588 | 18 Good deals |
2019 Mercedes-Benz C-Class C 300 4MATIC | $15,763 | 10 Great deals |
About the 2021 Mercedes-Benz C-Class C 300 4MATIC
C 300 shown (base trim).
- Seating
- 5
- Door count
- 4
- Drivetrain
- Rear-wheel drive
- Combined MPG
- 27
- Transmission
- 9-Speed A/T
- Engine
- 255.0-hp, 2.0-liter, 4 Cylinder Engine (Gasoline Fuel)

How much does the 2021 Mercedes-Benz C-Class C 300 4MATIC cost?
The 2021 Mercedes-Benz C-Class C 300 4MATIC price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2021 C-Class C 300 4MATIC is $28,046, with pricing starting at $15,987.
What is the MPG of the 2021 Mercedes-Benz C-Class C 300 4MATIC?
The 2021 Mercedes-Benz C-Class C 300 4MATIC offers up to 23 MPG in city driving and 35 MPG on the highway for a combined rating of 27 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle options, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2021 Mercedes-Benz C-Class C 300 4MATIC?
The 2021 Mercedes-Benz C-Class C 300 4MATIC compares to and/or competes against the following vehicles:
Is the 2021 Mercedes-Benz C-Class C 300 4MATIC reliable?
The 2021 Mercedes-Benz C-Class has an average reliability rating of 5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 C-Class owners.
Is the 2021 Mercedes-Benz C-Class C 300 4MATIC a good sedan?
Below are the Cars.com consumer ratings for the 2021 Mercedes-Benz C-Class.
- Comfort 5.0
- Interior 4.8
- Performance 5.0
- Value 5.0
- Exterior 5.0
- Reliability 5.0
100% of drivers recommend this car
- Comfort 5.0
- Interior 4.8
- Performance 5.0
- Value 5.0
- Exterior 5.0
- Reliability 5.0
*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.
Used 2021 Mercedes-Benz C-Class C 300 4MATIC by city
-
2021 Mercedes-Benz C-Class C 300 4MATIC in Cos Cob, CT
24 Great Deals out of 84 listings starting at $17,995
-
2021 Mercedes-Benz C-Class C 300 4MATIC in Riverside, CT
24 Great Deals out of 84 listings starting at $17,995
-
2021 Mercedes-Benz C-Class C 300 4MATIC in Old Greenwich, CT
23 Great Deals out of 81 listings starting at $17,995
-
2021 Mercedes-Benz C-Class C 300 4MATIC in Greenwich, CT
23 Great Deals out of 84 listings starting at $18,333
-
2021 Mercedes-Benz C-Class C 300 4MATIC in Pemberwick, CT
23 Great Deals out of 84 listings starting at $18,333
-
2021 Mercedes-Benz C-Class C 300 4MATIC in Glenville, CT
23 Great Deals out of 84 listings starting at $18,333
-
2021 Mercedes-Benz C-Class C 300 4MATIC in Stamford, CT
15 Great Deals out of 54 listings starting at $19,327
-
2021 Mercedes-Benz C-Class C 300 4MATIC in Byram, CT
24 Great Deals out of 85 listings starting at $17,995
-
2021 Mercedes-Benz C-Class C 300 4MATIC in Port Chester, NY
24 Great Deals out of 85 listings starting at $17,995
-
2021 Mercedes-Benz C-Class C 300 4MATIC in Rye Brook, NY
23 Great Deals out of 84 listings starting at $18,333
-
2021 Mercedes-Benz C-Class C 300 4MATIC in Rye, NY
23 Great Deals out of 84 listings starting at $18,333
-
2021 Mercedes-Benz C-Class C 300 4MATIC in Darien, CT
16 Great Deals out of 52 listings starting at $17,995
Mercedes-Benz C-Class trims
-
Mercedes-Benz C-Class 2021 C 300 4MATIC
24 Great Deals out of 85 listings starting at $17,995
- ${price_badge()}
- ${ami_badge()}
- ${battery_badge()}${ev_report_link()}
- ${hot_car_badge()}
- ${award_badge()}
- ${cpo_badge()}
${price_badge_description}
${ami_badge_description}
The EV Battery Rating is based on this vehicle's current expected range relative to the vehicles expected range when new. ${battery_badge_text}
Certified cars are manufacturer warrantied and typically go through a rigorous multi-point inspection.
This car is likely to sell soon based on the price, features, and condition.
${award_blurb}
${award_two_blurb}