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REAL MPG:
Mercedes-Benz C-Class (2014 on)
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000583
18–66
Real MPG
45.6
Average
Much improved interior quality. More refined and better to drive than predecessor. Facelift diesels get new 2.0-litre 4-cylinder engines.
C220 CDI with automatic gearbox is disappointing. Surprising quality issues with pre-facelift models.
Select engine for more Real MPG information:
| Engine | Official MPG | Real MPG Avg. | Real MPG % | |
| AMG C 43 | 30.4–35.3 mpg | 28.4 mpg | 87% |  |
| AMG C 63 | 28.5–34.5 mpg | 21.1 mpg | 67% | |
| AMG C 63 S | 28.5–34.5 mpg | 25.0 mpg | 79% | |
| C 180 | 47.1–47.9 mpg | - | - | |
| C 180 Automatic | 44.1–45.6 mpg | 31.0 mpg | 69% | |
| C 200 1.5 4Matic Automatic | 43.5 mpg | - | - | |
| C 200 1.5 Automatic | 46.3–47.1 mpg | 36.7 mpg | 79% | |
| C 200 2.0 | 49.6–53.3 mpg | 38.3 mpg | 74% | |
| C 200 2.0 4Matic Automatic | 40.9–41.5 mpg | 36.2 mpg | 88% | |
| C 200 2.0 Automatic | 48.7–53.3 mpg | 38.3 mpg | 75% | |
| C 200 d 1.6 | 65.7–72.4 mpg | 52.6 mpg | 76% | |
| C 200 d 1.6 Automatic | 62.8–67.3 mpg | 52.7 mpg | 81% | |
| C 220 d 2.0 4Matic Automatic | 57.7 mpg | 50.8 mpg | 88% | |
| C 220 d 2.0 Automatic | 61.4–64.2 mpg | 51.9 mpg | 83% | |
| C 220 d 2.1 | 67.3–70.6 mpg | 55.4 mpg | 80% | |
| C 220 d 2.1 4Matic Automatic | 58.9–61.4 mpg | 43.6 mpg | 72% | |
| C 220 d 2.1 Automatic | 61.4–65.7 mpg | 49.2 mpg | 77% | |
| C 250 d 2.1 4Matic Automatic | 58.9–61.4 mpg | 45.6 mpg | 76% | |
| C 250 d 2.1 Automatic | 61.4–65.7 mpg | 45.9 mpg | 72% | |
| C 300 Automatic | 42.2–43.5 mpg | 34.5 mpg | 80% | |
| C 300 d 4Matic Automatic | 53.3 mpg | - | - | |
| C 300 d Automatic | 57.7 mpg | - | - | |
| C 300 h | 74.3–78.5 mpg | 50.6 mpg | 66% | |
| C 350 e | 122.8 mpg | 44.8 mpg | 37% | |
Our Fuel Cost Calculator shows you which will be the best choice for you.
Compare the running costs of petrol, diesel and electric cars to make the right choice for you.
Read the Honest John review...
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Mercedes-Benz C-Class (2014 on)
Much improved interior quality. More refined and better to drive than predecessor. Facelift diesels get new 2.0-litre 4-cylinder engines.
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Rivals
| Mercedes-Benz C-Class (2014 on) | 45.6 | avg mpg |
| Mercedes-Benz C-Class Estate (2014 on) | 44.7 | avg mpg |
| Audi A4 (2015 on) | 43.4 | avg mpg |
| BMW 4 Series Gran Coupe (2014 on) | 40.2 | avg mpg |
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