Mercedes-benz GLB 2026 running costs in Spain
Official UK Vehicle Certification Agency (WLTP) figure for the 2026 Mercedes-benz GLB: 6.1–8.9 L/100km, 160–203 g/km CO₂. At Spain prices (€1.73/L petrol), driving 15,000 km a year costs about €2,314 — €0.15 per kilometre, priced on petrol (a plug-in hybrid also uses electricity, which is cheaper per km on home charging).
Official figures — 2026 Mercedes-benz GLB
| Fuel types | Hybrid · Diesel |
|---|---|
| Official consumption | 6.1–8.9 L/100km |
| CO₂ (official) | 160–203 g/km |
| Engine size | 1,950–1,991 cc |
| Power | 110–225 kW |
| Configurations in source data | 2 |
| Data source | UK Vehicle Certification Agency (WLTP) — WLTP test cycle |
What it costs to run in Spain
| Hybrid (8.9 L/100km) | €2,314/year |
|---|---|
| ITV | €45.00/year |
| Typical annual road tax | €60.00/year |
| Estimated annual running cost | €2,419/year ≈ €202/month |
Assumes 15,000 km a year and the current average Spain prices shown above (EU Oil Bulletin (DG ENER) week 31 Aug 2026: E95 €1.733/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.
A 2026 Mercedes-benz GLB at different annual distances
Running costs scale almost linearly with distance: this car's certified 8.9 L/100km fixes the cost of every extra 1,000 kilometres.
| Driven a year | Fuel or electricity | All-in running cost |
|---|---|---|
| 10,000 km | €1,542 | €1,647 |
| 15,000 km | €2,314 | €2,419 |
| 20,000 km | €3,085 | €3,190 |
Over five years at 15,000 km a year, fuel or electricity plus the ITV and road tax come to roughly €12,093; over ten years, about €24,186. Insurance, servicing, tyres and repairs are on top of that and are excluded throughout this page.
Is the 2026 Mercedes-benz GLB cheap to run? How it ranks in Spain
Among the 407 hybrid cars with official figures in our Spain dataset, the 2026 Mercedes-benz GLB is the 383rd most efficient — 1 is the most efficient.
It uses 8.9 L/100km against a market median of 5.9 L/100km and a market average of 6.1 L/100km. The middle half of hybrid cars sit between 4.9 and 7.2 L/100km. This car is therefore about 50.8% above the typical hybrid car — worth roughly €1,176 a year more at 15,000 km a year.
What a 2026 Mercedes-benz GLB costs to run in other countries
The same car with the same certified consumption, priced at each market's own average fuel and electricity prices — so the differences below are local prices, not a different car.
| Market | Fuel or electricity per year | Converted to euro |
|---|---|---|
| Sweden | SEK 21,894 | €1,964 |
| Spain | €2,314 | €2,314 |
| Ireland | €2,456 | €2,456 |
| Belgium | €2,516 | €2,516 |
| France | €2,767 | €2,767 |
| Finland | €2,941 | €2,941 |
| Germany | €2,985 | €2,985 |
| Netherlands | €3,137 | €3,137 |
| United Kingdom | £2,819 | €3,282 |
Only markets that certify this exact model-year are listed, and fuel is compared like for like: road tax, insurance, the roadworthiness test and servicing are excluded because they differ by country. Euro conversions use ECB reference rates.
How it compares with other hybrid cars in Spain
The average hybrid car in our Spain dataset uses 5.9 L/100km. The 2026 Mercedes-benz GLB uses 8.9 L/100km — about 50.8% more than that average, or roughly €780 extra a year at 15,000 km.
2026 Mercedes-benz GLB — configurations in the official data
| Fuel | Consumption | CO₂ | Engine | Power | Source variant |
|---|---|---|---|---|---|
| Hybrid | 8.9 L/100km | 203 g/km | 1991 cc | 225 kW | AMG GLB 35 4MATIC · 4 versions (median WLTP) |
| Diesel | 6.1 L/100km | 160 g/km | 1950 cc | 110 kW | GLB 200 d · 4 versions (median WLTP) |
Figures are the official certified values recorded in the UK Vehicle Certification Agency (WLTP), grouped across 2 configurations. Real-world consumption is typically higher than the certified figure.
2026 Mercedes-benz GLB running costs — frequently asked questions
How much does a 2026 Mercedes-benz GLB cost to run in Spain?
About €2,419 a year (€202 a month) at the market average price of €1.73 per litre of petrol. That is €2,314 of fuel or electricity plus €45.00 for the ITV and €60.00 of road tax. Insurance, servicing, tyres and repairs are not included.
How much does a 2026 Mercedes-benz GLB cost per kilometre to run?
€0.15 per kilometre (€0.25 per mile) in fuel or electricity alone, based on the certified 8.9 L/100km and Spain average petrol prices.
What is the fuel consumption of a 2026 Mercedes-benz GLB?
The official certified figure for this model-year is 6.1–8.9 L/100km, with CO₂ of 160–203 g/km. Source: UK Vehicle Certification Agency (WLTP), WLTP test cycle. Real-world consumption is usually higher than the certified figure.
What are the CO₂ emissions of a 2026 Mercedes-benz GLB?
160–203 g/km CO₂ on the WLTP test cycle, according to UK Vehicle Certification Agency (WLTP). CO₂ is what determines the exact road tax band for the specific variant — the €60.00 figure used on this page is the Spain national average, so check the band for the exact car you are buying.
Is the 2026 Mercedes-benz GLB cheap to run compared with other hybrid cars in Spain?
Yes, in relative terms: it ranks 383 of 407 hybrid cars in our Spain dataset, where 1 is the most efficient. It uses 8.9 L/100km against a market median of 5.9 L/100km — about 50.8% more than the typical car, or roughly €1,176 a year extra at km the market default.
Where is a 2026 Mercedes-benz GLB cheapest to run?
Of the markets that share this car's certified data, Sweden works out cheapest at about SEK 21,894 a year and United Kingdom the most expensive at about £2,819 — the difference is local fuel and electricity prices, not the car. Figures are converted at ECB reference rates and exclude tax, insurance and servicing, which differ by country.
How the 2026 Mercedes-benz GLB running costs are calculated
Every figure on this page is calculated from official certified data — nothing is estimated, and no figure is carried over from a similar car:
- Consumption and CO₂ are the certified values recorded in UK Vehicle Certification Agency (WLTP), measured on the WLTP test cycle, taken across the 2 configurations held for this model-year.
- Annual cost is consumption × distance × the market's current average price for petrol, at 15,000 km a year.
- The roadworthiness test and road tax use the Spain national figures shown above. Road tax is banded by CO₂ in most markets, so the exact rate depends on the variant you buy — the figure here is the market average, not a quote for one registration.
- Deliberately excluded: insurance, servicing, tyres, repairs and depreciation. They depend on the driver, the policy and the individual car, so putting a number on them would mean inventing one.
To price a specific car with your own distance and local prices, use the full running-cost calculator for Spain.
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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.