Mercedes Benz GLS 2021 running costs in Belgium
Official UK VCA merged archive figure for the 2021 Mercedes Benz GLS: 9.7–11.8 L/100km, 210–286 g/km CO₂. At Belgium prices (€1.89/L petrol), driving 15,000 km a year costs about €3,336 — €0.22 per kilometre, priced on petrol (a plug-in hybrid also uses electricity, which is cheaper per km on home charging).
Official figures — 2021 Mercedes Benz GLS
| Fuel types | Plug In Hybrid · Diesel |
|---|---|
| Official consumption | 9.7–11.8 L/100km |
| CO₂ (official) | 210–286 g/km |
| Configurations in source data | 2 |
| Data source | UK VCA merged archive — WLTP test cycle |
What it costs to run in Belgium
| Plug In Hybrid (11.8 L/100km) | €3,336/year |
|---|---|
| contrôle technique | €46.00/year |
| Typical annual road tax | €270/year |
| Estimated annual running cost | €3,652/year ≈ €304/month |
Assumes 15,000 km a year and the current average Belgium prices shown above (EU Oil Bulletin (DG ENER) week 31 Aug 2026: E95 €1.885/L). Insurance is not included because it depends on your age, history and the policy — add it in the full ownership calculator. Servicing, tyres and repairs also vary by car and driver.
How it compares with other plug in hybrid cars in Belgium
The average plug in hybrid car in our Belgium dataset uses 5.9 L/100km. The 2021 Mercedes Benz GLS uses 11.8 L/100km — about 100.0% more than that average, or roughly €1,668 extra a year at 15,000 km.
2021 Mercedes Benz GLS — configurations in the official data
| Fuel | Consumption | CO₂ | Engine | Power | Source variant |
|---|---|---|---|---|---|
| Plug In Hybrid | 11.8 L/100km | 286 g/km | — | — | 1 versions · WLTP · median 24 mpg (UK) |
| Diesel | 9.7 L/100km | 210 g/km | — | — | 1 versions · WLTP · median 29 mpg (UK) |
Figures are the official certified values recorded in the UK VCA merged archive, grouped across 2 configurations. Real-world consumption is typically higher than the certified figure.
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Mercedes Benz GLS 2022 · Mercedes Benz GLS 2018 · All Belgium cars · Full Belgium running-cost calculator · Belgium fuel cost calculator
These are estimates built from official certified figures and current average prices. They are not financial advice. Verify the exact figure for the car you are buying — consumption varies by trim, tyres and driving style.