Mercedes-Benz GLC300 4matic Coupe MPG and Fuel Economy

Mercedes-Benz have been manufacturing models of GLC300 4matic Coupe for 7 years, with the latest vehicle in 2023 having a combined MPG of 22.

The estimated fuel cost for the 2023 Mercedes-Benz GLC300 4matic Coupe is $2,900 per year.

Government regulators have estimated that value based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.

💵 Compared to an average vehicle over 5 years, you will spend $5,500 more on fuel driving a 2023 Mercedes-Benz GLC300 4matic Coupe.

🛢 The Mercedes-Benz GLC300 4matic Coupe will consume roughly 14 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.

💨 For every mile driven, the Mercedes-Benz GLC300 4matic Coupe will emit 397 grams of CO2, which is about 5,955,000 grams of CO2 per year.

🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 284 trees would be needed to offset emissions from the Mercedes-Benz GLC300 4matic Coupe.

The table below is a complete list of the 7 Mercedes-Benz GLC300 4matic Coupe fuel efficiency specifications we have data for.

Click any vehicle link to see a more detailed breakdown of the car, miles per gallon, emissions, and more.

Link To or Reference This Page

If you use this page in your research, please reference MPG Buddy as the source.

  • "Mercedes-Benz GLC300 4matic Coupe MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/mercedes-benz/glc300-4matic-coupe.

  • "Mercedes-Benz GLC300 4matic Coupe MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/mercedes-benz/glc300-4matic-coupe. Accessed January 3, 2026.

  • Mercedes-Benz GLC300 4matic Coupe MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/mercedes-benz/glc300-4matic-coupe.