|Model|| Cylinder |
| Engine displacement |
| Rated output |
(kW at rpm)
| Top |
| Fuel consumption |
| CO2 emissions, |
|C 220 CDI||4-in line||2143||125/3000–4200 (125/3000–4200)||232 (231)||5.1–4.4 (5.3–4.9)|| 133–117 |
|C 220 CDI BlueEFFICIENCY Edition||4-in line||2143||125 / 3000– 4200||232||4.1||109|
|C 250 CDI||4-in line||2143||150/3800 (150/3800)||240 (240)||5.4–4.9 (5.3–4.9)|| 143–128 |
|C 250 CDI Sport||4-in line||2143||– (150/3800)||– (240)||– ( 5.3)||– (139)|
The diesel engines in the C-Class Coupé feature a host of technical innovations. The result: their power output is up to 20 percent higher than comparable older engines.
That means the C 220 CDI produces 125 kW of power and the C 250 CDI as well as the C 250 CDI Sport both produce 150 kW. At the same time the torque of both engines has increased by up to 25 percent, while fuel consumption and CO2 emissions have dropped by up to 23 per cent. Both models also have the ECO start/stop function and meet Euro 5 emission standards.
The following models are available to choose from: C 220 CDI, C 220 CDI BlueEFFICIENCY Edition, C 250 CDI and C 250 CDI Sport.
Figures in brackets apply to vehicles with automatic transmission
 Figures for rated output and rated torque pursuant to Directive 595/2009/EEC in the currently applicable version.
 The figures shown for fuel consumption and CO2 emissions were obtained in accordance with the prescribed measuring methods (section 2 nos. 5, 6, 6a Pkw-EnVKV as amended). The figures are not based on an individual vehicle and do not constitute part of the product offer; they are provided solely for purposes of comparison between different vehicle models.