Mercedes Benz GLB SUV 2021 running costs in Belgium

Official figures — 2021 Mercedes Benz GLB SUV

What it costs to run in Belgium

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.

A 2021 Mercedes Benz GLB SUV at different annual distances

Running costs scale almost linearly with distance: this car's certified 8.6 L/100km fixes the cost of every extra 1,000 kilometres.

Over five years at 15,000 km a year, fuel or electricity plus the contrôle technique and road tax come to roughly €13,738; over ten years, about €27,477. Insurance, servicing, tyres and repairs are on top of that and are excluded throughout this page.

Is the 2021 Mercedes Benz GLB SUV cheap to run? How it ranks in Belgium

Among the 7344 petrol cars with official figures in our Belgium dataset, the 2021 Mercedes Benz GLB SUV is the 4305th most efficient — 1 is the most efficient.

It uses 8.6 L/100km against a market median of 7.9 L/100km and a market average of 8.6 L/100km. The middle half of petrol cars sit between 6.3 and 10.2 L/100km. This car is therefore about 8.9% above the typical petrol car — worth roughly €215 a year more at 15,000 km a year.

What a 2021 Mercedes Benz GLB SUV 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.

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 petrol cars in Belgium

The average petrol car in our Belgium dataset uses 7.9 L/100km. The 2021 Mercedes Benz GLB SUV uses 8.6 L/100km — about 8.9% more than that average, or roughly €198 extra a year at 15,000 km.

2021 Mercedes Benz GLB SUV — configurations in the official data

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.

2021 Mercedes Benz GLB SUV running costs — frequently asked questions

How much does a 2021 Mercedes Benz GLB SUV cost to run in Belgium?

About €2,748 a year (€229 a month) at the market average price of €1.89 per litre of petrol. That is €2,432 of fuel or electricity plus €46.00 for the contrôle technique and €270 of road tax. Insurance, servicing, tyres and repairs are not included.

How much does a 2021 Mercedes Benz GLB SUV cost per kilometre to run?

€0.16 per kilometre (€0.26 per mile) in fuel or electricity alone, based on the certified 8.6 L/100km and Belgium average petrol prices.

What is the fuel consumption of a 2021 Mercedes Benz GLB SUV?

The official certified figure for this model-year is 5.6–8.6 L/100km, with CO₂ of 143–194 g/km. Source: UK VCA merged archive, WLTP test cycle. Real-world consumption is usually higher than the certified figure.

What are the CO₂ emissions of a 2021 Mercedes Benz GLB SUV?

143–194 g/km CO₂ on the WLTP test cycle, according to UK VCA merged archive. CO₂ is what determines the exact road tax band for the specific variant — the €270 figure used on this page is the Belgium national average, so check the band for the exact car you are buying.

Is the 2021 Mercedes Benz GLB SUV cheap to run compared with other petrol cars in Belgium?

Yes, in relative terms: it ranks 4305 of 7344 petrol cars in our Belgium dataset, where 1 is the most efficient. It uses 8.6 L/100km against a market median of 7.9 L/100km — about 8.9% more than the typical car, or roughly €215 a year extra at km the market default.

Where is a 2021 Mercedes Benz GLB SUV cheapest to run?

Of the markets that share this car's certified data, Sweden works out cheapest at about SEK 21,156 a year and United Kingdom the most expensive at about £2,724 — 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 2021 Mercedes Benz GLB SUV 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 VCA merged archive, 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 Belgium 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 Belgium.

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