With 83 MPGe combined, the 2024 Mercedes-Benz EQS 450 4matic SUV is an electric vehicle that emphasizes luxury, space, all-weather capability, and cutting-edge technology alongside efficiency. This SUV is for those who demand the best of everything, including driving with less gas.

City and highway performance

The EPA estimates for the EQS 450 4matic SUV are consistent: 84 MPGe in the city and 82 MPGe on the highway. This consistency shows the electric powertrain’s inherent efficiency, needing little throttle and energy to keep moving. Unlike internal combustion engines, electric motors operate at or near peak efficiency across a wider range of speeds, minimizing efficiency loss in stop-and-go traffic. The all-wheel-drive system also contributes by ensuring optimal power delivery regardless of road conditions, though it’s unlikely to be pushed to its limit in everyday driving.

Annual fuel cost

The EPA calculates that the estimated annual fuel cost for the 2024 Mercedes-Benz EQS 450 4matic SUV is $900. This figure is based on driving 15,000 miles per year and using the national average electricity prices. This is a key statistic for potential buyers, especially when you consider the vehicle’s price. Some owners may even see lower costs if they charge mostly at off-peak hours. Of course, electricity prices vary depending on location, and this is only an estimate.

Real-world expectations

While the EPA estimates provide a useful benchmark, real-world MPGe can vary based on driving habits, weather conditions, and terrain. Aggressive acceleration, frequent use of climate control, and sustained high speeds can all reduce efficiency. Cold weather, in particular, can noticeably reduce electric vehicle range due to battery chemistry limitations. The EQS 450 4matic SUV’s energy management system and regenerative braking help mitigate some of these effects. Expect to come close to these numbers outside of extreme driving or weather conditions.

How it compares

The luxury electric SUV segment is still relatively young, but it’s becoming increasingly competitive. The Audi e-tron offers a range of powertrain options, with the base e-tron SUV achieving around 78 MPGe combined. BMW’s iX xDrive50 boasts an EPA rating of 86 MPGe combined, slightly edging out the EQS. The Tesla Model X, in its Long Range configuration, achieves approximately 102 MPGe combined. These numbers are primarily of interest to EV shoppers, who are more informed and critical of fuel consumption data than most consumers. The EQS 450 4matic SUV balances efficiency and performance, appealing to buyers who prioritize overall luxury and brand cachet alongside lower fuel costs. See EQS MPG across all years here.

Tips to maximize efficiency

Take advantage of regenerative braking whenever possible. The EQS allows adjustments to the level of regeneration, enabling drivers to maximize energy recapture during deceleration. Anticipate traffic stops and coast, letting the regenerative braking system do its work. It’s also a good way to enhance smoothness.

Precondition the cabin while the vehicle is plugged in. Heating or cooling the interior using grid power rather than battery power can significantly reduce energy consumption, especially in extreme temperatures. The Mercedes-Benz Me connect app makes this function simple.

Monitor tire pressure regularly. Underinflated tires increase rolling resistance, which reduces efficiency. The EQS features a tire pressure monitoring system (TPMS) that alerts you to deviations from the recommended pressure.

Minimize aerodynamic drag. Remove unnecessary items from the roof rack or cargo carrier, as they can significantly increase drag and reduce efficiency, especially at highway speeds. The EQS’ long, sloping roofline also helps cut down on wind resistance.

Limit aggressive acceleration. Quick acceleration is fun, but it consumes a significant amount of energy. Smooth and gradual acceleration not only extends range but also contributes to a more comfortable driving experience. Explore all Mercedes Benz fuel economy data.