The current Mercedes-Benz GLC covers up to 130 km on a full charge. Figures below are the longest-range variant in each generation.
| Years | Powertrain | Range |
|---|---|---|
| 2015–2019 | Combustion | 985 |
| 2016–2019 | Combustion | 1,082 |
| 2019–2023 | Combustion | 1,294 |
| 2022–present | Electric | 130 |
| 2025–present | Electric | 673 |
Range is the manufacturer-rated maximum for the longest-range variant in each generation. Electric generations use the rated battery range; combustion generations are calculated from tank capacity and combined-cycle consumption. Figures outside a plausible range are excluded rather than shown with a guessed correction.