2027 Mercedes-Benz EQS 400 4matic (SUV) MPG & Specs — Real Fuel Cost
Quick answer
The 2027 Mercedes-Benz EQS 400 4matic (SUV) gets an EPA-estimated 80/78 MPG (city/highway) and 79 MPG combined, with an estimated $950/year fuel cost.
The 2027 Mercedes-Benz EQS 400 4matic (SUV) with the listed electricity engine returns an EPA-estimated 80 MPG in the city and 78 MPG on the highway, for a combined 79 MPG. This page summarizes the official EPA fuel-economy and emissions data for this configuration.
| Engine | — |
| Transmission | Automatic (A1) |
| Drive | All-Wheel Drive |
| Fuel type | Electricity |
| Vehicle class | Standard Sport Utility Vehicle 4WD |
| MPG — city | 80 |
| MPG — highway | 78 |
| MPG — combined | 79 |
| Annual fuel cost* | $950 |
| CO₂ tailpipe | — |
| EPA GHG score | 10/10 |
| Electric range | 312 mi |
How efficient is it?
As an all-electric vehicle, the 2027 Mercedes-Benz EQS 400 4matic (SUV) is rated in MPGe rather than MPG, and running costs are dominated by electricity rather than fuel. That is about 162% better than the typical Standard Sport Utility Vehicle 4WD of its era (30 MPG class average), making it one of the more efficient choices in its class.
Fuel economy and running costs
At about $950 per year in fuel (EPA estimate, 15,000 mi/yr), fuel is a major part of the cost of owning the 2027 Mercedes-Benz EQS 400 4matic (SUV). Over five years that is roughly $4,750 at today's prices — before insurance, maintenance, and depreciation.
How to read these numbers
EPA figures come from standardized laboratory test cycles and are the same estimates shown on the vehicle's window sticker. Your real-world mileage depends on driving style, conditions, fuel grade, and maintenance. Use combined MPG and annual fuel cost to compare vehicles fairly.