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Mercedes GLC 2019 fuel consumption

Mercedes GLC from 2019 to 2023 real fuel consumption according to user reports is approximately 35% higher compared to advertised fuel consumption. For petrol engines real consumption is in average 37% higher, but for diesel engines is approximately 33% higher. Starting from 2019 Mercedes GLC average difference between actual owner-reported fuel consumption and stated consumption was less than industry average, at 2020 difference between owner-reported and advertised fuel economy became similar to average. For more details, see the table below.

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

YearDiesel cars
All carmakersMercedes GLC
2019+35%+28%
Show all years
2020+33%+28%
2021+32%+28%
2022+30%+28%
2023+30%+27%

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

2019 - 2022

Mercedes GLC 2019 X253 fuel economy

Average advertised fuel consumption for petrol engines23.4 MPG
10.0 l/100km
Average advertised fuel consumption for diesel engines39.9 MPG
5.9 l/100km
Average real-world fuel consumption for diesel engines32.8 MPG
7.2 l/100km
Average real diesel consumption difference *+29%
ModificationClaimed consumptionReal consumption
2.0 liter petrol engine
Mercedes GLC 2019 2.0 GLC 200 197 HP 4x4 automatic 31.8 MPG
7.4 l/100km
Mercedes GLC 2019 2.0 GLC 300 258 HP 4x4 automatic 31.8 MPG
7.4 l/100km
2.0 liter diesel engine
Mercedes GLC 2.0 200 2019 d 4MATIC 163 HP 4x4 automatic 43.6 MPG
5.4 l/100km
35.1 MPG
6.7 l/100km+24%
Mercedes GLC 2.0 220 2019 d 4MATIC 194 HP 4x4 automatic 43.6 MPG
5.4 l/100km
32.7 MPG
7.2 l/100km+33%
Mercedes GLC 2.0 300 2019 d 4MATIC 245 HP 4x4 automatic 40.6 MPG
5.8 l/100km
30.9 MPG
7.6 l/100km+31%
2.9 liter diesel engine
Mercedes GLC 2019 2.9 GLC 400d 330 HP 4x4 automatic 33.6 MPG
7.0 l/100km
3.0 liter petrol engine
Mercedes GLC 2019 3.0 AMG GLC 43 V6 390 HP 4x4 automatic 22.2 MPG
10.6 l/100km
4.0 liter petrol engine
Mercedes GLC 2019 4.0 AMG GLC 63 V8 476 HP 4x4 automatic 19.0 MPG
12.4 l/100km
Mercedes GLC 2019 4.0 AMG GLC 63 S V8 510 HP 4x4 automatic 19.0 MPG
12.4 l/100km
2019 - 2023

Mercedes GLC 2019 C253 Coupe fuel economy

Average advertised fuel consumption for petrol engines23.5 MPG
10.0 l/100km
Average advertised fuel consumption for diesel engines39.5 MPG
6.0 l/100km
Average real-world fuel consumption for diesel engines33.0 MPG
7.1 l/100km
Average real diesel consumption difference *+27%
ModificationClaimed consumptionReal consumption
2.0 liter petrol engine
Mercedes GLC 2019 2.0 GLC 200 197 HP 4x4 automatic 31.4 MPG
7.5 l/100km
Mercedes GLC 2019 2.0 GLC 300 258 HP 4x4 automatic 31.4 MPG
7.5 l/100km
2.0 liter diesel engine
Mercedes GLC 2.0 200 2019 d 4MATIC 163 HP 4x4 automatic 42.8 MPG
5.5 l/100km
35.1 MPG
6.7 l/100km+22%
Mercedes GLC 2.0 220 2019 d 4MATIC 194 HP 4x4 automatic 42.8 MPG
5.5 l/100km
32.7 MPG
7.2 l/100km+31%
Mercedes GLC 2.0 300 2019 d 4MATIC 245 HP 4x4 automatic 40.6 MPG
5.8 l/100km
31.4 MPG
7.5 l/100km+29%
2.9 liter diesel engine
Mercedes GLC 2019 2.9 GLC 400d 330 HP 4x4 automatic 33.6 MPG
7.0 l/100km
3.0 liter petrol engine
Mercedes GLC 2019 3.0 AMG GLC 43 V6 390 HP 4x4 automatic 22.4 MPG
10.5 l/100km
4.0 liter petrol engine
Mercedes GLC 2019 4.0 AMG GLC 63 V8 476 HP 4x4 automatic 19.1 MPG
12.3 l/100km
Mercedes GLC 2019 4.0 AMG GLC 63 S V8 510 HP 4x4 automatic 19.1 MPG
12.3 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.