The Mercedes-Benz C200 typically achieves an average real-world fuel consumption of around 37–44 mpg, with long motorway runs occasionally reaching up to 49 mpg, depending on driving conditions and model year[1][3]. Official manufacturer figures claim a combined consumption closer to 53 mpg for petrol models, but actual use generally falls below this estimate[3].
For the diesel C200 variant, owners report similar averages of about 37 mpg in everyday driving and up to 44–49 mpg on long journeys, compared to the catalogue figure of 60 mpg[1]. Extensive dealer testing showed results much closer to real-world usage, confirming the gap between published and achieved economy.
General fuel economy ratings for the Mercedes-Benz C-Class are:
- Petrol: 40.4–44.1 mpg[2]
- Diesel: 53.3–64.2 mpg (official figures; real-world commonly lower)[2]
- PHEV: 470.8–565 mpg (plug-in hybrid, under testing conditions)[2]
Owners of the W205 C200 petrol model often report averages around 36 mpg in mixed conditions and up to 44 mpg on motorways, contrary to the more optimistic manufacturer claim of 53.3 mpg[3].