Mercedes-Benz C-Class
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CleanAir Created with Sketch.
10.0 10 Clean Air Index
EnergyEfficiency Created with Sketch.
5.3 10 Energy Efficiency Index
Laboratory TestsHCCONOxPN
9.09Cold test*
3.03Warm test#
3.03Eco Mode#
3.03Sport Mode#
9.09Highway#
Road test
7.07On-Road Drive*
Robustness
* Adapted regulatory test # Additional Green NCAP tests
  • n.a.
  • good
  • adequate
  • marginal
  • weak
  • poor

Comments

The C220d 4Matic performs exceptionally well, with very low values of pollutant emissions in all tests. The car scores maximum points for the Clean Air Index, the first non-electric vehicle tested by Green NCAP to do so.

Laboratory TestsEnergy Efficiency
6.610Cold test*
2.33Warm test*
2.33Eco Mode#
2.23Sport Mode#
4.710Highway#
ConsumptionFuel
Average consumption5.7l100km
Worst-case consumption6.8l100km
* Adapted regulatory test # Additional Green NCAP tests
  • n.a.
  • good
  • adequate
  • marginal
  • weak
  • poor

Comments

Performance in most tests is adequate. In the cold test and the high-load highway test, energy efficiency is marginal, and it is the latter that the maximum fuel consumption of 6.8 l/100 km is recorded, still a creditable result for a large family car with a diesel engine.

Greenhouse Gases**

CO2
Cold test*
Warm test#
Eco Mode#
Sport Mode#
Highway#
**For indication only. The assessment of greenhouse gases does not currently form part of the rating.

Specifications

  • Year of Publication 2019
  • VIN From Which Rating Applies WDD2050151F89XXXX
  • Emissions Class Euro 6d-Temp
  • Mass 1590kg
  • Engine Size 1950cc
  • Engine Power/Torque 143kW / 400Nm
  • Tyres 225/50 R17
  • Published CO2 166 g/km

Our verdict

Mercedes-Benz’s fourth generation C-Class, tested here with as the C220d 4Matic, puts paid to the notion that diesel engines are necessarily dirty. With selective catalyst reduction and a diesel particulate filter, the C220d 4Matic delivers exceptionally good results for low pollutant emissions and becomes the first non-electric vehicle tested by Green NCAP to achieve a full score in the Clean Air index. With good performance in all of the lab and on-road tests, the results show that, with careful calibration and effective after-treatment, diesel engine cars can deliver extremely low emissions. The car’s energy efficiency is less exceptional and pulls the overall star rating down to three. Fuel consumption is not much worse in sports mode than it is in normal drive mode, but nor is it noticeably better in eco mode. Overall, the C220d 4Matic is a strong performer, with excellent results for low pollutant emissions.