Mercedes Benz C-Class Saloon 2021 running costs in Sweden
Official UK VCA merged archive figure for the 2021 Mercedes Benz C-Class Saloon: 4.9–9.7 L/100km, 128–220 g/km CO₂. At Sweden prices (SEK 16.40/L petrol), driving 15,000 km a year costs about SEK 23,862 — SEK 1.59 per kilometre.
Official figures — 2021 Mercedes Benz C-Class Saloon
| Fuel types | Petrol · Plug In Hybrid · Diesel |
|---|---|
| Official consumption | 4.9–9.7 L/100km |
| CO₂ (official) | 128–220 g/km |
| Configurations in source data | 3 |
| Data source | UK VCA merged archive — WLTP test cycle |
What it costs to run in Sweden
| Petrol (9.7 L/100km) | SEK 23,862/year |
|---|---|
| besiktning | SEK 500/year |
| Typical annual road tax | SEK 1,200/year |
| Estimated annual running cost | SEK 25,562/year ≈ SEK 2,130/month |
Assumes 15,000 km a year and the current average Sweden prices shown above (EU Oil Bulletin 31 Aug 2026 €1.471/L @ ECB 11.15 ≈ 16.4 kr/L (temporary fuel-tax cut to EU min ends 30 Sep 2026)). 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 C-Class Saloon at different annual distances
Running costs scale almost linearly with distance: this car's certified 9.7 L/100km fixes the cost of every extra 1,000 kilometres.
| Driven a year | Fuel or electricity | All-in running cost |
|---|---|---|
| 10,000 km | SEK 15,908 | SEK 17,608 |
| 15,000 km | SEK 23,862 | SEK 25,562 |
| 20,000 km | SEK 31,816 | SEK 33,516 |
Over five years at 15,000 km a year, fuel or electricity plus the besiktning and road tax come to roughly SEK 127,810; over ten years, about SEK 255,620. Insurance, servicing, tyres and repairs are on top of that and are excluded throughout this page.
Is the 2021 Mercedes Benz C-Class Saloon cheap to run? How it ranks in Sweden
Among the 7344 petrol cars with official figures in our Sweden dataset, the 2021 Mercedes Benz C-Class Saloon is the 5156th most efficient — 1 is the most efficient.
It uses 9.7 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 22.8% above the typical petrol car — worth roughly SEK 5,437 a year more at 15,000 km a year.
What a 2021 Mercedes Benz C-Class Saloon 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 23,862 | €2,140 |
| Spain | €2,522 | €2,522 |
| Ireland | €2,677 | €2,677 |
| Belgium | €2,743 | €2,743 |
| France | €3,016 | €3,016 |
| Finland | €3,205 | €3,205 |
| Germany | €3,253 | €3,253 |
| Netherlands | €3,419 | €3,419 |
| United Kingdom | £3,072 | €3,577 |
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 Sweden
The average petrol car in our Sweden dataset uses 7.9 L/100km. The 2021 Mercedes Benz C-Class Saloon uses 9.7 L/100km — about 22.8% more than that average, or roughly SEK 4,428 extra a year at 15,000 km.
2021 Mercedes Benz C-Class Saloon — configurations in the official data
| Fuel | Consumption | CO₂ | Engine | Power | Source variant |
|---|---|---|---|---|---|
| Petrol | 9.7 L/100km | 220 g/km | — | — | 1 versions · WLTP · median 29 mpg (UK) |
| Plug In Hybrid | 6.6 L/100km | 149 g/km | — | — | 1 versions · WLTP · median 43 mpg (UK) |
| Diesel | 4.9 L/100km | 128 g/km | — | — | 1 versions · WLTP · median 58 mpg (UK) |
Figures are the official certified values recorded in the UK VCA merged archive, grouped across 3 configurations. Real-world consumption is typically higher than the certified figure.
2021 Mercedes Benz C-Class Saloon running costs — frequently asked questions
How much does a 2021 Mercedes Benz C-Class Saloon cost to run in Sweden?
About SEK 25,562 a year (SEK 2,130 a month) at the market average price of SEK 16.40 per litre of petrol. That is SEK 23,862 of fuel or electricity plus SEK 500 for the besiktning and SEK 1,200 of road tax. Insurance, servicing, tyres and repairs are not included.
How much does a 2021 Mercedes Benz C-Class Saloon cost per kilometre to run?
SEK 1.59 per kilometre (SEK 2.56 per mile) in fuel or electricity alone, based on the certified 9.7 L/100km and Sweden average petrol prices.
What is the fuel consumption of a 2021 Mercedes Benz C-Class Saloon?
The official certified figure for this model-year is 4.9–9.7 L/100km, with CO₂ of 128–220 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 C-Class Saloon?
128–220 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 SEK 1,200 figure used on this page is the Sweden national average, so check the band for the exact car you are buying.
Is the 2021 Mercedes Benz C-Class Saloon cheap to run compared with other petrol cars in Sweden?
Yes, in relative terms: it ranks 5156 of 7344 petrol cars in our Sweden dataset, where 1 is the most efficient. It uses 9.7 L/100km against a market median of 7.9 L/100km — about 22.8% more than the typical car, or roughly SEK 5,437 a year extra at km the market default.
Where is a 2021 Mercedes Benz C-Class Saloon cheapest to run?
Of the markets that share this car's certified data, Sweden works out cheapest at about SEK 23,862 a year and United Kingdom the most expensive at about £3,072 — 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 C-Class Saloon 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 3 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 Sweden 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 Sweden.
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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.