The 2020 Mercedes-Benz AMG CLA35 4Matic gets 25 MPG combined. It’s not just a vehicle for commuting; it’s a stylish, turbocharged four-door coupe with performance capabilities. Buyers of this vehicle prioritize head-turning looks, a tech-filled interior, and AMG performance, and they accept slightly higher fuel costs.

City and highway performance

The EPA estimates the AMG CLA35 gets 23 MPG in the city and 29 MPG on the highway. The city figure reflects the engine’s responsiveness, even at low speeds, and frequent stops. The highway figure shows the engine delivers reasonable mileage when cruising at a constant speed thanks to the AMG Speedshift DCT 7G transmission which helps optimize performance and efficiency.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2020 Mercedes-Benz AMG CLA35 at $2,300. This is based on driving 15,000 miles per year (55% city, 45% highway) and using the national average fuel price when the EPA tested it. Gas prices can change this cost. Drivers who cover more miles or drive mostly in the city will likely exceed this estimate.

Real-world expectations

Achieving the EPA’s numbers is possible, however real-world driving yields slightly different results. Aggressive acceleration, frequent use of Sport or Sport+ driving modes, and extra weight all decrease fuel economy. Regular maintenance, like properly inflated tires and a clean air filter, helps maintain fuel efficiency. Those who often exploit the CLA35’s performance can expect numbers closer to the low 20s, while those who prioritize fuel economy in comfort mode will get better results, possibly meeting or slightly exceeding the EPA’s highway estimate.

How it compares

Several competitors offer similar performance and styling, each with its own fuel economy. The Audi S3, delivers a comparable driving experience and achieves around 26 MPG combined. The BMW M235i xDrive Gran Coupe, another stylish four-door coupe, also achieves around 26 MPG combined. For buyers considering the AMG CLA35, this MPG difference is unlikely to be the only factor. They are likely more focused on the performance, interior design, and brand image, and accept the fuel economy which comes with the powertrain and chassis tuning they prefer. For those wanting to see AMG MPG across all years, there is plenty of data available.

Tips to maximize efficiency

Use the AMG CLA35’s driving modes. “Comfort” mode prioritizes fuel efficiency by optimizing throttle response, transmission timing, and engine sound. Using it during regular commuting yields better fuel efficiency compared to “Sport” or “Sport+” modes.

Avoid excessive idling. Modern engines are efficient when running, but idling burns fuel without covering any distance. If you expect to sit stationary for longer than a minute, turn off the engine. Restarting has minimal impact on fuel consumption.

Gentle acceleration is key. The CLA35’s turbocharger provides power, but aggressive acceleration decreases fuel economy. Gradual acceleration and anticipating traffic allows the turbocharger to remain at minimal usage, improving fuel efficiency.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Check your CLA35’s tire pressure regularly and maintain the recommended levels listed on the door jamb sticker.

Regular maintenance is essential. Ensure the engine air filter is clean and replace it regularly. A clean air filter allows for airflow, improving combustion and fuel economy. See all Mercedes Benz fuel economy data.