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Used 2021 Mercedes-Benz C-Class Sedan Consumer Reviews

3.9 out of 5 stars
8 reviews

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Pros
Cons
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)
49 of 53 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

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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2021 Mercedes-Benz C-Class for sale near you
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2 out of 5 stars

Great car with a lot of flaws and issues

Ebad, 08/24/2021
2021 Mercedes-Benz C-Class C 300 4dr Sedan (2.0L 4cyl Turbo 9A)
21 of 28 people found this review helpful

I bought a brand new C300 2021 in July 2021. Due to the shortage, I purchased the car while it was in transit. But it came with a lot of problems; According to the service people, the left-side computer was totally disconnected, plus the chrome trim at the back was not assembled properly. The MB service told me it's not covered by the warranty and that it's a $700 job. Long story short, I love the car but it's been a negative experience and big disappointment with Mercedes Benz. The conclusion I make after the experience seems to be that buyers should take an expert/mechanic to inspect the car accurately before buying. Otherwise, they might buy a flawed car for which Mercedes will not take responsibility after it's sold if it's not included in the warranty. Lesson learned; next time, if I choose to buy a Mercedes, I'll bring my mechanic.

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

Great with the AMG line package

Phil S, 05/25/2021
2021 Mercedes-Benz C-Class C 300 4MATIC 4dr Sedan AWD (2.0L 4cyl Turbo 9A)
5 of 7 people found this review helpful

The AMG line package really transformed this car from mediocre to enjoyable! Best all-around vehicle in its class (I drove the A4 and 330i), considering the comfort, drive and looks.

Safety
5 out of 5 stars
Technology
5 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
4 out of 5 stars
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3 out of 5 stars

A letdown from the W204

ADW, 05/14/2021
2021 Mercedes-Benz C-Class C 300 4MATIC 4dr Sedan AWD (2.0L 4cyl Turbo 9A)
15 of 25 people found this review helpful

I currently own a 2014 C300 4Matic, and it has been a fantastic car in almost every way. Last week I was given a 2021 loaner from the dealer while some maintenance was done on my car, and I have to say, it was a very mixed bag. I really, really hate the turbo 4 engine - it's noisy and seems gutless; I think they overly rely on the transmission to keep the driver in a reasonable power band, but the transmission seems to be over-thinking its mission, sometimes hanging onto revs way too long and clunking down gears without grace. The interior is, of course, very nice, and it all has a very Mercedes-like feeling until you start driving. I think it would be much easier to score this car higher if the price was more reasonable, though there is a lot of tech in the car. Ultimately, a 4 banger is a 4 banger, no matter how nice the packaging. My advice to used car shoppers: look long and hard at the 2012-2014 V6 C300 before you buy one of these. There are a lot of them around and they are built like tanks.

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

Waste of money

Ali, 08/03/2022
2021 Mercedes-Benz C-Class C 300 4MATIC 4dr Sedan AWD (2.0L 4cyl Turbo 9A)
4 of 9 people found this review helpful

There is too much plastic in this car. The interior was peeling off after a while. I am very disappointed and unhappy with this car. Before buying it, I read so many negative comments about it but I did not pay attention and now I realized that others were right about this car. Very unreliable piece of plastic.

Safety
5 out of 5 stars
Technology
2 out of 5 stars
Performance
4 out of 5 stars
Interior
1 out of 5 stars
Reliability
1 out of 5 stars
Value
2 out of 5 stars
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5 out of 5 stars

Sharp car

Rich grossman, 06/22/2022
2021 Mercedes-Benz C-Class C 300 4MATIC 4dr Sedan AWD (2.0L 4cyl Turbo 9A)
0 of 0 people found this review helpful

Car and sarasota dealer are awesome

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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4 out of 5 stars

Excellent except for transmission logic

Fazzster, 10/03/2024
2021 Mercedes-Benz C-Class C 300 4MATIC 4dr Sedan AWD (2.0L 4cyl Turbo 9A)
0 of 0 people found this review helpful

Purchased a CPO C300 4-Matic with AMG Line package. I love everything about it except the transmission. Why have a "Sport Plus" mode if you don't have transmission tuning to go along with it? It should hold the gears longer especially in manual mode using the paddle shifters. It's a shame because the handling is noteworthy and will certainly reward when you want to play. Otherwise the performance of the transmission is smooth and efficient when driving normally. In mixed driving MPG's are around 36. Highest was 39 and lowest has been 28. Purchased the car with 12k miles. I now have 17k and no issues thus far.

Safety
5 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
4 out of 5 stars
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