View all official consumption figures for the new Mercedes GLS 2026 and older generations of this model. Find technical data such as average WLTP fuel consumption, CO2 emissions and much more for each version.
| Petrol - consumption WLTP | 10.2 - 11.7 l/100 km |
| Petrol - CO2 WLTP | 232 - 266 g/km |
| Diesel - consumption WLTP | 8.0 - 9.1 l/100 km |
| Diesel - CO2 WLTP | 210 - 240 g/km |
