22 MPG combined is likely not the biggest factor for someone buying a 2019 Mercedes-Benz AMG C43 4matic Coupe. This car blends everyday usability with AMG’s sporty feel. Buyers likely focus on the 3.0L turbocharged V6’s acceleration, the aggressive styling, and the all-weather assurance of 4Matic all-wheel drive. Fuel economy is a compromise they are willing to make for the experience.

City and highway performance

The EPA estimates the C43 Coupe at 19 MPG in the city and 27 MPG on the highway. The city figure reflects stop-and-go traffic, where the engine is constantly accelerating and decelerating. The highway number shows the cars ability to cruise at steady speeds, although frequent bursts of acceleration will lower that number quickly. The 9-speed automatic transmission plays an important role, offering a wide spread of ratios to optimize both acceleration and fuel economy. However, aggressive driving will inevitably impact real-world results.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2019 Mercedes-Benz AMG C43 4matic Coupe is $2,650. This is based on driving 15,000 miles per year, with 55% of those miles driven in the city and 45% on the highway. The calculation uses the national average fuel price, which changes. Individual fuel costs will depend on driving habits, local fuel prices, and the type of fuel used. Premium fuel is recommended, if not required, and will further impact the annual fuel bill. To see all Mercedes Benz fuel economy data, check out our brand index.

Real-world expectations

While the EPA numbers provide a baseline, real-world fuel economy for the C43 Coupe can change. Drivers who frequently push the car will likely experience lower fuel economy than the EPA estimates. On the other hand, those who drive smoothly, and spend more time on the highway may see numbers close to or higher than the EPA ratings. Owners often see figures in the low 20s in mixed driving conditions.

How it compares

Compared to its competitors, the C43’s fuel economy is average for its class. The BMW M440i xDrive Coupe gets around 25 MPG combined, offering a slight edge in efficiency. The Audi S5 Coupe comes in at a similar 24 MPG combined. These differences matter, as buyers often cross-shop these models, and fuel economy is one factor among many. Competitors are more fuel-efficient, they may not offer AMG’s driving experience. Understanding AMG MPG across all years will give you more insight.

Tips to maximize efficiency

Use the driving modes. The C43 features multiple driving modes that impact fuel consumption. “Comfort” or “Eco” modes prioritize efficiency by adjusting throttle response and transmission behavior. These modes can improve fuel economy, especially in city driving, without reducing the car’s performance too much.

Pay attention to tire pressure. Correct tire inflation reduces rolling resistance, improving fuel economy and extending tire life. Check tire pressures regularly and inflate them to the manufacturer’s recommended settings, found on the doorjamb or in the owner’s manual. A few extra PSI can make a difference in mileage.

Anticipate traffic flow. Aggressive acceleration and hard braking consume fuel faster than smooth driving. By anticipating traffic conditions and maintaining a steady pace, you can minimize the need for sudden acceleration and deceleration, improving fuel economy without reducing driving enjoyment.

Reduce unnecessary weight. Carrying extra weight in the car increases fuel consumption. Remove unnecessary items from the trunk and passenger compartment to lighten the load and improve fuel efficiency. Even small weight savings help, especially in a vehicle where weight matters.