Audi A3 Sportback 2026 running costs in United Kingdom
Official UK Vehicle Certification Agency (WLTP) figure for the 2026 Audi A3 Sportback: 48–53 mpg (UK), 127–139 g/km CO₂. At United Kingdom prices (£1.86/L diesel), driving 12,000 miles a year costs about £1,904 — £0.10 per mile.
Official figures — 2026 Audi A3 Sportback
| Fuel types | Diesel · Petrol · Hybrid |
|---|---|
| Official consumption | 47.9–53.3 mpg (UK) |
| CO₂ (official) | 127–139 g/km |
| Engine size | 999–1,968 cc |
| Power | 81–110 kW |
| Configurations in source data | 3 |
| Data source | UK Vehicle Certification Agency (WLTP) — WLTP test cycle |
What it costs to run in United Kingdom
| Diesel (53.3 mpg (UK)) | £1,904/year |
|---|---|
| MOT | £54.85/year |
| Typical annual road tax | £190/year |
| Estimated annual running cost | £2,149/year ≈ £179/month |
Assumes 12,000 miles a year and the current average United Kingdom prices shown above (GOV.UK weekly road fuel prices, Sep 2026 (164.4p)). 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 diesel cars in United Kingdom
The average diesel car in our United Kingdom dataset uses 5.6 L/100km. The 2026 Audi A3 Sportback uses 5.3 L/100km — about 5.4% less than that average, or roughly £108 saved a year at 12,000 miles.
2026 Audi A3 Sportback — configurations in the official data
| Fuel | Consumption | CO₂ | Engine | Power | Source variant |
|---|---|---|---|---|---|
| Diesel | 5.3 L/100km | 139 g/km | 1968 cc | 110 kW | TDI 150PS · 2 versions (median WLTP) |
| Petrol | 5.9 L/100km | 135 g/km | 999 cc | 81 kW | 30 TFSI 110 PS 6-speed · 6 versions (median WLTP) |
| Hybrid | 5.6 L/100km | 127 g/km | 1498 cc | 85 kW | TFSI 116 PS S tronic · 4 versions (median WLTP) |
Figures are the official certified values recorded in the UK Vehicle Certification Agency (WLTP), grouped across 3 configurations. Real-world consumption is typically higher than the certified figure.
Related
All United Kingdom cars · Full United Kingdom running-cost calculator · United Kingdom 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.