
The following table compares the fuel economies of different models of Mercedes-Benz C300 cars, across model years.
The annual fuel costs (shown in the right-hand columns) are calculated based on an estimated annual mileage of 15,000 miles,
of which 55% of the miles are city driving, and 45% of the miles are highway driving.
Annual Cost 1 assumes a fuel cost of $5.00 per gallon, while Annual Cost 2 assumes a fuel cost of $6.00 per gallon.
| Model Year | Transmission | Cyl. | Combined MPG | City MPG |
Highway MPG |
Annual Cost 1 |
Annual Cost 2 |
|---|---|---|---|---|---|---|---|
| 2010 C300 FFV | Automatic 7-speed | 6 | 21 | 18 | 26 | $3,589 | $4,307 |
| Model Year | Transmission | Cyl. | Combined MPG | City MPG |
Highway MPG |
Annual Cost 1 |
Annual Cost 2 |
|---|---|---|---|---|---|---|---|
| 2023 C300 Coupe | Automatic 9-speed | 4 | 25 | 22 | 31 | $2,963 | $3,556 |
| 2022 C300 Coupe | Automatic 9-speed | 4 | 25 | 22 | 31 | $2,963 | $3,556 |
| 2021 C300 Coupe | Automatic 9-speed | 4 | 27 | 24 | 33 | $2,741 | $3,289 |
| 2020 C300 Coupe | Automatic 9-speed | 4 | 25 | 22 | 31 | $2,963 | $3,556 |
| 2019 C300 Coupe | Automatic 9-speed | 4 | 25 | 22 | 31 | $2,963 | $3,556 |
| 2018 C300 Coupe | Automatic 9-speed | 4 | 25 | 22 | 30 | $3,000 | $3,600 |
| 2017 C300 Coupe | Automatic 7-speed | 4 | 26 | 23 | 30 | $2,918 | $3,502 |
| Model Year | Transmission | Cyl. | Combined MPG | City MPG |
Highway MPG |
Annual Cost 1 |
Annual Cost 2 |
|---|---|---|---|---|---|---|---|
| 2023 C300 Convertible | Automatic 9-speed | 4 | 24 | 21 | 29 | $3,128 | $3,753 |
| 2022 C300 Convertible | Automatic 9-speed | 4 | 24 | 21 | 28 | $3,169 | $3,803 |
| 2021 C300 Convertible | Automatic 9-speed | 4 | 26 | 23 | 31 | $2,882 | $3,458 |
| 2020 C300 Convertible | Automatic 9-speed | 4 | 24 | 21 | 29 | $3,128 | $3,753 |
| 2019 C300 Convertible | Automatic 9-speed | 4 | 24 | 21 | 29 | $3,128 | $3,753 |
| 2018 C300 Convertible | Automatic 9-speed | 4 | 25 | 22 | 29 | $3,038 | $3,646 |
| 2017 C300 Convertible | Automatic 9-speed | 4 | 26 | 23 | 31 | $2,882 | $3,458 |
| Model Year | Transmission | Cyl. | Combined MPG | City MPG |
Highway MPG |
Annual Cost 1 |
Annual Cost 2 |
|---|---|---|---|---|---|---|---|
| 2023 C300 | Automatic 9-speed | 4 | 29 | 25 | 36 | $2,587 | $3,105 |
| 2022 C300 | Automatic 9-speed | 4 | 29 | 25 | 35 | $2,614 | $3,137 |
| 2021 C300 | Automatic 9-speed | 4 | 27 | 23 | 35 | $2,757 | $3,309 |
| 2020 C300 | Automatic 9-speed | 4 | 28 | 24 | 35 | $2,683 | $3,219 |
| 2019 C300 | Automatic 9-speed | 4 | 27 | 23 | 34 | $2,786 | $3,343 |
| 2018 C300 | Automatic 9-speed | 4 | 27 | 24 | 33 | $2,741 | $3,289 |
| 2017 C300 | Automatic 7-speed | 4 | 28 | 24 | 34 | $2,711 | $3,253 |
| 2016 C300 | Automatic 7-speed | 4 | 28 | 25 | 34 | $2,642 | $3,171 |
| 2015 C300 | Automatic 7-speed | 4 | 28 | 25 | 33 | $2,672 | $3,207 |
| 2011 C300 | Automatic 7-speed | 6 | 21 | 18 | 25 | $3,641 | $4,370 |
| 2011 C300 | Automatic 7-speed | 6 | 20 | 18 | 25 | $3,641 | $4,370 |
| 2011 C300 | Manual 6-speed | 6 | 21 | 18 | 25 | $3,641 | $4,370 |
| 2010 C300 | Manual 6-speed | 6 | 21 | 18 | 26 | $3,589 | $4,307 |
| 2010 C300 | Automatic 7-speed | 6 | 21 | 18 | 26 | $3,589 | $4,307 |
| 2009 C300 | Automatic 7-speed | 6 | 21 | 18 | 25 | $3,641 | $4,370 |
| 2008 C300 | Manual 6-speed | 6 | 21 | 18 | 26 | $3,589 | $4,307 |
| 2008 C300 | Automatic 7-speed | 6 | 21 | 18 | 25 | $3,641 | $4,370 |
| Model Year | Transmission | Cyl. | Combined MPG | City MPG |
Highway MPG |
Annual Cost 1 |
Annual Cost 2 |
|---|---|---|---|---|---|---|---|
| 2023 C300 4matic Coupe | Automatic 9-speed | 4 | 25 | 22 | 31 | $2,963 | $3,556 |
| 2022 C300 4matic Coupe | Automatic 9-speed | 4 | 25 | 22 | 31 | $2,963 | $3,556 |
| 2021 C300 4matic Coupe | Automatic 9-speed | 4 | 26 | 23 | 32 | $2,848 | $3,417 |
| 2020 C300 4matic Coupe | Automatic 9-speed | 4 | 25 | 21 | 30 | $3,089 | $3,707 |
| 2019 C300 4matic Coupe | Automatic 9-speed | 4 | 25 | 22 | 31 | $2,963 | $3,556 |
| 2018 C300 4matic Coupe | Automatic 9-speed | 4 | 25 | 22 | 30 | $3,000 | $3,600 |
| 2017 C300 4matic Coupe | Automatic 7-speed | 4 | 25 | 23 | 29 | $2,957 | $3,548 |
| Model Year | Transmission | Cyl. | Combined MPG | City MPG |
Highway MPG |
Annual Cost 1 |
Annual Cost 2 |
|---|---|---|---|---|---|---|---|
| 2023 C300 4matic Convertible | Automatic 9-speed | 4 | 25 | 21 | 30 | $3,089 | $3,707 |
| 2022 C300 4matic Convertible | Automatic 9-speed | 4 | 24 | 21 | 30 | $3,089 | $3,707 |
| 2021 C300 4matic Convertible | Automatic 9-speed | 4 | 25 | 22 | 30 | $3,000 | $3,600 |
| 2020 C300 4matic Convertible | Automatic 9-speed | 4 | 24 | 21 | 29 | $3,128 | $3,753 |
| 2019 C300 4matic Convertible | Automatic 9-speed | 4 | 24 | 21 | 29 | $3,128 | $3,753 |
| 2018 C300 4matic Convertible | Automatic 9-speed | 4 | 25 | 22 | 29 | $3,038 | $3,646 |
| 2017 C300 4matic Convertible | Automatic 9-speed | 4 | 25 | 22 | 29 | $3,038 | $3,646 |
| Model Year | Transmission | Cyl. | Combined MPG | City MPG |
Highway MPG |
Annual Cost 1 |
Annual Cost 2 |
|---|---|---|---|---|---|---|---|
| 2023 C300 4matic | Automatic 9-speed | 4 | 27 | 24 | 33 | $2,741 | $3,289 |
| 2022 C300 4matic | Automatic 9-speed | 4 | 27 | 23 | 33 | $2,816 | $3,379 |
| 2021 C300 4matic | Automatic 9-speed | 4 | 27 | 23 | 33 | $2,816 | $3,379 |
| 2020 C300 4matic | Automatic 9-speed | 4 | 26 | 23 | 33 | $2,816 | $3,379 |
| 2019 C300 4matic | Automatic 9-speed | 4 | 26 | 22 | 33 | $2,897 | $3,477 |
| 2018 C300 4matic | Automatic 9-speed | 4 | 26 | 23 | 32 | $2,848 | $3,417 |
| 2017 C300 4matic | Automatic 7-speed | 4 | 27 | 24 | 31 | $2,807 | $3,368 |
| 2016 C300 4matic | Automatic 7-speed | 4 | 27 | 24 | 31 | $2,807 | $3,368 |
| 2015 C300 4matic | Automatic 7-speed | 4 | 27 | 24 | 31 | $2,807 | $3,368 |
| 2014 C300 4matic | Automatic 7-speed | 6 | 22 | 19 | 28 | $3,376 | $4,051 |
| 2014 C300 4matic | Automatic 7-speed | 6 | 22 | 19 | 26 | $3,469 | $4,162 |
| 2014 C300 4matic | Automatic 7-speed | 6 | 22 | 20 | 27 | $3,312 | $3,975 |
| 2013 C300 4matic | Automatic 7-speed | 6 | 22 | 19 | 28 | $3,376 | $4,051 |
| 2013 C300 4matic | Automatic 7-speed | 6 | 22 | 19 | 26 | $3,469 | $4,162 |
| 2012 C300 4matic | Automatic 7-speed | 6 | 20 | 17 | 24 | $3,832 | $4,599 |
| 2012 C300 4matic | Automatic 7-speed | 6 | 20 | 18 | 25 | $3,641 | $4,370 |
| 2011 C300 4matic | Automatic 7-speed | 6 | 20 | 17 | 24 | $3,832 | $4,599 |
| 2011 C300 4matic | Automatic 7-speed | 6 | 20 | 18 | 25 | $3,641 | $4,370 |
| 2010 C300 4matic | Automatic 7-speed | 6 | 20 | 17 | 24 | $3,832 | $4,599 |
| 2009 C300 4matic | Automatic 7-speed | 6 | 20 | 17 | 25 | $3,776 | $4,531 |
| 2008 C300 4matic | Automatic 7-speed | 6 | 20 | 17 | 25 | $3,776 | $4,531 |
| Model Year | Transmission | Cyl. | Combined MPG | City MPG |
Highway MPG |
Annual Cost 1 |
Annual Cost 2 |
|---|---|---|---|---|---|---|---|
| 2010 C300 4matic FFV | Automatic 7-speed | 6 | 20 | 18 | 25 | $3,641 | $4,370 |
Data source: Fuel Economy USA, Reference.