2021 Mercedes-Benz C-Class Review
Price Range:Â $20,495 - $44,495





+205
Average
7.6
out of 10
edmunds TESTED
The 2021 C-Class delivers respectable performance, impressive comfort, and a luxurious cabin loaded with advanced technology. A wealth of options means you can tailor the car to taste, but those options can add up quick. At a certain point, the Benz's traditional rivals start to look like better values. But there's no denying the Benz's attention to quality and the appeal of its elegant, old-school luxury feel.
Mercedes-Benz C-Class model years
Mercedes-Benz C-Class types
2021 Mercedes-Benz C-Class Review
by the Edmunds Experts
What's new
- A 12.3-inch driver display and heated front seats are now standard
- New Night Edition package adds black exterior trim
- Part of the fourth C-Class generation introduced for 2015
Cost to DriveCost to drive estimates for the 2021 Mercedes-Benz C-Class C 300 4dr Sedan (2.0L 4cyl Turbo 9A) and comparison vehicles are based on 15,000 miles per year (with a mix of 55% city and 45% highway driving) and energy estimates of $3.99 per gallon for premium unleaded in Connecticut.
Monthly estimates based on costs in Connecticut
$176/mo  for C-Class C 300
C-Class C 300
vs
$163/mo
Avg. Midsize Car
See Edmunds pricing data
Has Your Car's Value Changed?
Used car values are constantly changing. Edmunds lets you track your vehicle's value over time so you can decide when to sell or trade in.
Reliability Ratings by RepairPal
4 out of 5 stars4/5Above Average
#20 out of 68 among Luxury Midsize Cars
RepairPal Reliability Ratings are based on the actual cost, frequency, and severity of unscheduled repairs and maintenance on make/model data for select 2008-2022 vehicles. The reliability of a specific vehicle may vary depending on its maintenance and driving history, model year, trim, and features.
Cost
The average total annual cost for unscheduled repairs and maintenance across all model years of the Mercedes-Benz C-Class from 2008-2022.$559/yr
vs. $607/yr
for Average Luxury Midsize Car
for Average Luxury Midsize Car
Frequency
The average number of times this model is brought into the shop for unscheduled repairs and maintenance in a single year. RepairPal calculates this metric by tracking millions of unique vehicles over multiple years to determine an average number of visits per year (omitting small routine visits, e.g., oil changes).1.06x/yr
vs. 1.36x/yr
for Average Luxury Midsize Car
for Average Luxury Midsize Car
Severity
The probability that a repair will be a major issue, meaning the repair costs 3x the average annual repair cost for all models. This threshold will be higher for vehicles that have higher labor rates and parts costs (such as a premium brand).9%
vs. 10.5%
for Average Luxury Midsize Car
for Average Luxury Midsize Car
powered by RepairPal Based on RepairPal reliability data as of 8/23/2023. Ratings are provided by RepairPal and Edmunds is not responsible for their accuracy.
Mercedes-Benz C-Class Reviews
Owner Reviews
5(71%)
4(6%)
3(7%)
2(13%)
1(3%)
Most Helpful Owner Reviews
Trending topics
Silver and Red Beauty
5 out of 5 starsJoseph ATX, 10/27/2020
2020 Mercedes-Benz C-Class C 300 4MATIC 2dr Convertible AWD (2.0L 4cyl Turbo 9A)
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.
Love this car
5 out of 5 starsPatti, 11/11/2020
2020 Mercedes-Benz C-Class C 300 4dr Sedan (2.0L 4cyl Turbo 9A)
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
Best of both worlds
5 out of 5 starsScott, 02/01/2021
2021 Mercedes-Benz C-Class C 300 4MATIC 4dr Sedan AWD (2.0L 4cyl Turbo 9A)
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.
Classy Mercedes-Benz
5 out of 5 starsBertha , 07/27/2020
2020 Mercedes-Benz C-Class C 300 4MATIC 4dr Sedan AWD (2.0L 4cyl Turbo 9A)
Smooth ride, many awesome features plus luxurious at the right price!
We have a limited number of reviews for the 2021 Mercedes-Benz C-Class, so we've included reviews for other years of the C-Class since its last redesign.
2021 C-Class Highlights
Sedan
C 300
Base MSRP Excludes Destination Fee | $41,600 |
---|---|
Engine Type | Gas |
Combined MPG | 27 MPG |
Cost to Drive | $176/month |
Seating | 5 seats |
Cargo Capacity All Seats In Place | 12.6 cu.ft. |
Drivetrain | rear wheel drive |
Warranty | 4 years / 50,000 miles |
Safety
Our experts like the C-Class models:
- Active Brake Assist
- Warns the driver audibly and applies the brakes if it senses a front collision.
- Surround View System
- Gives a 360-degree view of the car for tight parking lots and spaces so you can avoid striking objects or pedestrians.
- Active Blind Spot Assist
- Senses when a vehicle enters one of your blind spots. Can warn the driver and even help steer the C-Class.
NHTSA Overall Rating
5 out of 5 starsThe National Highway Transportation Safety Administration offers independent analysis.
- Frontal Barrier Crash RatingOverall4 / 5Driver5 / 5Passenger4 / 5
- Side Crash RatingOverall5 / 5
- Side Barrier RatingOverall5 / 5Driver5 / 5Passenger5 / 5
- Combined Side Barrier & Pole RatingsFront Seat5 / 5Back Seat5 / 5
- RolloverRollover4 / 5Dynamic Test ResultNo TipRisk Of Rollover11.1%
IIHS Rating
The Insurance Institute of Highway Safety uses extensive crash tests to determine car safety.
- Small Overlap Front Driver-Side TestGood
- Small Overlap Front Passenger-Side TestGood
- Moderate Overlap Front Test – OriginalGood
- Moderate Overlap Front Test – UpdatedNot Tested
- Side Impact Test – OriginalGood
- Side Impact Test – UpdatedNot Tested
- Roof Strength TestGood
- Rear Crash Protection / Head RestraintGood
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