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Mercedes real fuel consumption

According to aggregated user reports, the average real fuel consumption of Mercedes cars is approximately 20% higher for gasoline engines and is approximately 21% higher for diesel engines compared to the advertised consumption. Average fuel consumption difference for Mercedes vehicles manufactured in the last ten years is about approximately +36%, while older Mercedes cars consume approximately 11% more compared to the manufacturer's claimed consumption.

Year-to-year deviations of actual owner-reported average fuel consumption from advertised values

YearGasoline carsDiesel cars
All carmakersMercedesAll carmakersMercedes
2000 +4%minor +5%+7%
Show all years
2001 +5%minor +6%+6%
2002 +6%+2% +7%+6%
2003 +6%+3% +8%+8%
2004 +7%+5% +9%+9%
2005 +8%+8% +10%+13%
2006 +9%+11% +11%+13%
2007 +11%+12% +12%+13%
2008 +12%+14% +13%+14%
2009 +14%+15% +14%+15%
2010 +16%+17% +16%+17%
2011 +19%+21% +19%+21%
2012 +21%+28% +23%+27%
2013 +23%+31% +27%+31%
2014 +26%+35% +30%+37%
2015 +27%+36% +33%+38%
2016 +28%+36% +36%+40%
2017 +28%+35% +38%+41%
2018 +28%+35% +39%+40%
2019 +28%+36% +37%+36%
2020 +27%+37% +36%+36%
2021 +26%+37% +37%+36%

Among the recent Mercedes gasoline models, the Mercedes R class, Mercedes SLK and Mercedes G class come closest to meeting the manufacturer's fuel economy ratings. Regarding recent Mercedes diesel models, the Mercedes GL, Mercedes E class and Mercedes S class correspond most accurately to advertised fuel economy figures.

Select an Mercedes model to see the real fuel consumption of specific engine versions.

Mercedes A class Real fuel consumption difference:
Petrol: +21% Diesel: +24%
Mercedes B class Real fuel consumption difference:
Petrol: +27% Diesel: +28%
Mercedes C class Real fuel consumption difference:
Petrol: +19% Diesel: +21%
Mercedes CL Real fuel consumption difference:
Petrol: +15%
Mercedes CLA Real fuel consumption difference:
Petrol: +40% Diesel: +41%
Mercedes CLK Real fuel consumption difference:
Petrol: insignificant Diesel: +3%
Mercedes CLS Real fuel consumption difference:
Petrol: +26% Diesel: +30%
Mercedes E class Real fuel consumption difference:
Petrol: +11% Diesel: +12%
Mercedes G class Real fuel consumption difference:
Petrol: +10% Diesel: +13%
Mercedes GL Real fuel consumption difference:
Petrol: +19% Diesel: +10%
Mercedes GLA Real fuel consumption difference:
Petrol: +31%
Mercedes GLC Real fuel consumption difference:
Petrol: +37% Diesel: +33%
Mercedes GLE Real fuel consumption difference:
Petrol: +31% Diesel: +30%
Mercedes GLK Real fuel consumption difference:
Petrol: +28% Diesel: +23%
Mercedes ML Real fuel consumption difference:
Petrol: +18% Diesel: +18%
Mercedes R class Real fuel consumption difference:
Petrol: +7% Diesel: +15%
Mercedes S class Real fuel consumption difference:
Petrol: +10% Diesel: +12%
Mercedes SL Real fuel consumption difference:
Petrol: +15%
Mercedes SLC Real fuel consumption difference:
Petrol: +32%
Mercedes SLK Real fuel consumption difference:
Petrol: +8% Diesel: +23%
User-reported fuel consumption may not accurately represent all users' experiences due to variables such as driving conditions, driving style, technical condition of the vehicle, and other circumstances. Thus, it should not be relied upon as a representative indicator.