Real fuel consumption and economy logo

Mercedes S class 2017 fuel consumption

Mercedes S class from 2017 to 2020 real fuel consumption according to user reports is approximately 17% higher compared to advertised fuel consumption. For petrol engines real consumption is in average 22% higher, but for diesel engines is approximately 13% higher. Since 2017 the Mercedes S class average difference between owner-reported real-world fuel consumption and declared fuel economy has been significantly higher than average.

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

YearGasoline cars
All carmakersMercedes S class
2017+28%+51%
Show all years
2018+27%+51%
2019+26%+51%
2020+24%+51%

See below for the actual consumption of generations and versions of Mercedes S class.

2017 - 2020

Mercedes S class 2017 coupe fuel economy

Average advertised fuel consumption for petrol engines24.7 MPG
9.5 l/100km
Average real-world fuel consumption for petrol engines17.3 MPG
13.6 l/100km
Average real gasoline consumption difference *+51%
ModificationClaimed consumptionReal consumption
3.0 liter petrol engine
Mercedes S 450 367 HP 4x4 automatic 25.6 MPG
9.2 l/100km
4.0 liter petrol engine
Mercedes S 560 469 HP automatic 28.3 MPG
8.3 l/100km
Mercedes S 560 469 HP 4x4 automatic 26.1 MPG
9.0 l/100km
17.3 MPG
13.6 l/100km+51%
Mercedes AMG S 63 612 HP 4x4 automatic 25.3 MPG
9.3 l/100km
6.0 liter petrol engine
Mercedes AMG S 65 630 HP automatic 19.8 MPG
11.9 l/100km

* - Difference between advertised and user reported fuel economy has been calculated taking into account only those car versions for which information is available both on the fuel consumption specified by the manufacturer and reported by users.

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.