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Used 2021 Mercedes-Benz C-Class Consumer Reviews

4.3 out of 5 stars
31 reviews

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We have a limited number of reviews for the 2021 C-Class, so we've included reviews for other years of the C-Class since its last redesign.

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5 out of 5 stars

Silver and Red Beauty

Joseph ATX, 10/27/2020
updated 11/25/2024
2020 Mercedes-Benz C-Class C 300 4MATIC 2dr Convertible AWD (2.0L 4cyl Turbo 9A)
35 of 35 people found this review helpful

I’ve had this car for over a year. I had to order the car to get silver with a red interior and top with the driver assist package. It’s a very comfortable car. I took a 4K mile road trip as soon as it arrived. On the road it got 32 to 33 mpg. The ride is smooth and the acceleration is good. The driver assist package has some nice features. I got it mainly for adaptive cruise control. Mercedes makes it hard to get and expensive - driver assist requires the navigation package. There have been no mechanical issues in the past year. One complaint is the trunk can only be opened with the key fob or a release inside the car. Another is the ventilated seats are not cooled. They only blow air through the seats that is the same temperature as the air in the car making it a useless feature on a warm day with the top down. Overall I am pleased with this car and plan to drive it many years. I've had the car just over 2 years. There has only been one problem beyond regular maintenance. When putting the top down the cover that closes over the top was not going all the down. The local dealer lubricated the parts associated with lowering the top. That fixed the problem. It has worked perfectly since. Insurance is expensive. Before buying the car I had read that was the case with the C class. It cost more to insure this car than the two cars we had before this one (228i convertible and Golf R). After two years I am still happy with the car and will continue to drive it for many years. Edmunds is asking for an update at 2 years and 9 months. The starter battery had to be replaced. We don't put a lot of miles on the car. Mercedes told us we should drive more. The problem with the cover over the top closing completely came back. This time Mercedes replaced various cables in the top and the top liner. It has worked well since. Both the battery and top repair were under warranty. After almost 3 years I still enjoy driving this car. Edmunds is asking for an update at almost 4 years of owning this car. There have been no problems during the last year. I am still very satisfied with the car. It's been 5 years and Edmunds is asking to update my review. I've had no problems with the car since the last review. It's a low mileage car at 29K miles so far. I am satisfied with the car. After 5 years I usually want something different but I don't feel that way about this car. I will keep it for several more years. It is still beautiful in silver and red.

Safety
5 out of 5 stars
Technology
5 out of 5 stars
Performance
5 out of 5 stars
Interior
5 out of 5 stars
Comfort
5 out of 5 stars
Reliability
5 out of 5 stars
Value
4 out of 5 stars
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5 out of 5 stars

Love this car

Patti, 11/11/2020
2020 Mercedes-Benz C-Class C 300 4dr Sedan (2.0L 4cyl Turbo 9A)
17 of 17 people found this review helpful

This is my second c300 and I love this car. It’s not to big but has plenty of room for adults in the back seat. It has great, luxurious options, great acceleration, plenty of space and love that the back seats fold down when you need extra room

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5 out of 5 stars

Best of both worlds

Scott, 02/01/2021
2021 Mercedes-Benz C-Class C 300 4MATIC 4dr Sedan AWD (2.0L 4cyl Turbo 9A)
48 of 52 people found this review helpful

I did some pretty extensive research in this class, including the 330i xdrive and A4. After taking each of them on extensive test drives, I decided on the C300 4MATIC with the AMG line. I was very close to taking a great deal on the 3 Series, but in my heart I knew I liked the Mercedes more. It's much smoother, better built, and has better technology. I felt like the 330i's ride was a little too busy for me. It always begged me to drive fast, which may have been great in my 20s, but now I'm "more mature" haha. The C300 gives me the luxury all the time and the sportiness when I want it. Give it a try, you won't be disappointed.

Technology
5 out of 5 stars
Performance
5 out of 5 stars
Interior
5 out of 5 stars
Comfort
5 out of 5 stars
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5 out of 5 stars

Classy Mercedes-Benz

Bertha , 07/27/2020
2020 Mercedes-Benz C-Class C 300 4MATIC 4dr Sedan AWD (2.0L 4cyl Turbo 9A)
19 of 21 people found this review helpful

Smooth ride, many awesome features plus luxurious at the right price!

Safety
5 out of 5 stars
Technology
5 out of 5 stars
Performance
5 out of 5 stars
Interior
5 out of 5 stars
Comfort
5 out of 5 stars
Reliability
5 out of 5 stars
Value
5 out of 5 stars
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5 out of 5 stars

First MB

Corey, 09/02/2022
updated 03/07/2024
2021 Mercedes-Benz C-Class C 300 4dr Sedan (2.0L 4cyl Turbo 9A)
8 of 8 people found this review helpful

Test drove a 2021 BMW 330i RWD & the 2021 MB C300 RWD and immediately noticed the sport Vs luxury focus (BMW was sport oriented & the MB was more luxury oriented). Being that we desired a smoother ride & a quiet interior, we went with the MB C300 and are happy with the decision. It’s not the fastest small luxury sedan out there and for me that’s ok. The quality is top-notch. The doors close solidly and plastic components on the door panels do not rattle. The aluminum trim on the Burmester speaker grilles feels great to the touch. While the small finger-tip sized touch pads on the steering wheel feel a bit cheap, they do respond quickly to inputs so navigating gauge cluster menus or infotainment screen choices is quick and easy. I wish MB offered the infotainment screen with both controller + touch-screen (as did the BMW), but the controller wheel (or steering wheel touch pads) work fine. Fuel economy so far (18k miles) is averaging around 26mpg for combined city/highway. With a large fuel tank the range is most excellent. Super pleased and really like the quality & quiet interior, great sound system and the fuel economy. The factory Continental tires are wearing normally but are loud - it’s the only noise we hear on the highway (no wind noise).

Safety
4 out of 5 stars
Technology
4 out of 5 stars
Performance
4 out of 5 stars
Interior
5 out of 5 stars
Comfort
5 out of 5 stars
Reliability
5 out of 5 stars
Value
5 out of 5 stars
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