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Mercedes GLC fuel consumption

Of all Mercedes GLC modifications produced from 2015 to 2021 real fuel consumption according to user ratings is approximately 35% higher compared to advertised consumption. For petrol engines real consumption is in average 37% higher, but for diesel engines is approximately 33% higher. Starting from 2015 Mercedes GLC average difference between actual owner-reported fuel consumption and stated consumption was significantly higher than average, at 2020 difference between owner-reported and advertised fuel economy became less than industry average. For more details, see the table below.

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

YearGasoline carsDiesel cars
All carmakersMercedes GLCAll carmakersMercedes GLC
2015+27%+38% +33%+37%
Show all years
2016+28%+36% +36%+37%
2017+28%+36% +38%+37%
2018+28%+36% +39%+37%
2019+28%+36% +37%+32%
2020+27%-+36%+28%
2021+26%-+37%+28%

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

2019

Mercedes GLC 2019 fuel economy

Average advertised fuel consumption for petrol engines19.0 MPG
12.4 l/100km
Average advertised fuel consumption for diesel engines42.5 MPG
5.5 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 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%
4.0 liter petrol engine
Mercedes GLC 2019 4.0 AMG GLC 63 S V8 510 HP 4x4 automatic 19.0 MPG
12.4 l/100km
2019

Mercedes GLC 2019 Coupe fuel economy

Average advertised fuel consumption for petrol engines19.1 MPG
12.3 l/100km
Average advertised fuel consumption for diesel engines42.0 MPG
5.6 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 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%
4.0 liter petrol engine
Mercedes GLC 2019 4.0 AMG GLC 63 S V8 510 HP 4x4 automatic 19.1 MPG
12.3 l/100km
2016 - 2019

Mercedes GLC 2016 Coupe fuel economy

Average advertised fuel consumption for petrol engines25.0 MPG
9.4 l/100km
Average real-world fuel consumption for petrol engines19.4 MPG
12.1 l/100km
Average real gasoline consumption difference *+35%
Average advertised fuel consumption for diesel engines43.6 MPG
5.4 l/100km
Average real-world fuel consumption for diesel engines31.6 MPG
7.5 l/100km
Average real diesel consumption difference *+38%
ModificationClaimed consumptionReal consumption
2.0 liter petrol engine
Mercedes GLC 2016 2.0 Coupe 250 4MATIC 211 HP 4x4 automatic 32.2 MPG
7.3 l/100km
23.8 MPG
9.9 l/100km+36%
Mercedes GLC 2016 2.0 Coupe 300 4MATIC 245 HP 4x4 automatic 24.8 MPG
9.5 l/100km
2.1 liter diesel engine
Mercedes GLC 2016 2.1 Coupe 220 d 4MATIC 170 HP 4x4 automatic 43.6 MPG
5.4 l/100km
32.2 MPG
7.3 l/100km+35%
Mercedes GLC 2016 2.1 Coupe 250 d 4MATIC 204 HP 4x4 automatic 43.6 MPG
5.4 l/100km
30.9 MPG
7.6 l/100km+41%
3.0 liter petrol engine
Mercedes GLC 2016 3.0 Coupe 43 AMG 4MATIC 367 HP 4x4 automatic 26.4 MPG
8.9 l/100km
20.3 MPG
11.6 l/100km+30%
4.0 liter petrol engine
Mercedes GLC 2016 4.0 Coupe 63 AMG 4MATIC 476 HP 4x4 automatic 22.0 MPG
10.7 l/100km
15.6 MPG
15.1 l/100km+41%
Mercedes GLC 2016 4.0 Coupe 63 S AMG 4MATIC 510 HP 4x4 automatic 22.0 MPG
10.7 l/100km
16.3 MPG
14.4 l/100km+35%
2015 - 2019

Mercedes GLC 2015 fuel economy

Average advertised fuel consumption for petrol engines26.4 MPG
8.9 l/100km
Average real-world fuel consumption for petrol engines24.4 MPG
9.7 l/100km
Average real gasoline consumption difference *+38%
Average advertised fuel consumption for diesel engines42.8 MPG
5.5 l/100km
Average real-world fuel consumption for diesel engines31.4 MPG
7.5 l/100km
Average real diesel consumption difference *+36%
ModificationClaimed consumptionReal consumption
2.0 liter petrol engine
Mercedes GLC 2.0 250 2015 4MATIC 211 HP 4x4 automatic 33.1 MPG
7.1 l/100km
24.0 MPG
9.8 l/100km+38%
Mercedes GLC 2.0 300 2015 4MATIC 245 HP 4x4 automatic 24.8 MPG
9.5 l/100km
2.1 liter diesel engine
Mercedes GLC 2.1 220 2015 d 4MATIC 170 HP 4x4 automatic 42.8 MPG
5.5 l/100km
32.2 MPG
7.3 l/100km+33%
Mercedes GLC 2.1 250 2015 d 4MATIC 204 HP 4x4 automatic 42.8 MPG
5.5 l/100km
30.5 MPG
7.7 l/100km+40%
4.0 liter petrol engine
Mercedes GLC 2017 4.0 AMG GLC 63 S 510 HP 4x4 automatic 22.0 MPG
10.7 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.