Audi A1 S Line Black Ed 25 TFSI S-A (2021)
Estimated running costs and MOT pass rates from 605 MOT tests in 2024.
Annual Cost
£1,780
£148/month
MOT Pass Rate
89%
Good
Road Tax
£200
Standard rate/year
Est. Insurance
Grp 1-8
999cc Petrol
Solid Option
89% pass rate, £1,780/year to run. 7 points above average.
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Annual Running Costs
~50 mpg
Standard rate (from April 2017)
Estimates based on 7,400 miles/year (UK average), petrol at 174.57p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included. Cars registered from April 2017 pay the £200 standard rate, plus £440 a year for five years (from the second year) if they cost over £40,000 new (over £50,000 for electric cars).
Reliability Verdict
Good reliability. Occasional issues but generally solid. That's 7 points above the average of 82% across all models in our data.
89% of MOT tests on Audi A1 S Line Black Ed 25 TFSI S-As from 2021 ended in a pass in 2024, when they were about 3 years old. That's based on 605 tests across the UK, retests included. The average mileage recorded at those tests was 32,917 miles.
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How Does It Compare?
Mileage Analysis
32,917
Average miles
22,200
Expected for age
The average 2021 Audi A1 S Line Black Ed 25 TFSI S-A had 32,917 miles on the clock at its 2024 MOT, which is above the expected 22,200 miles for a 3-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.
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About the 2021 Audi A1 S Line Black Ed 25 TFSI S-A
The 2021 Audi A1 S Line Black Ed 25 TFSI S-A is a premium car. Our records list a 999cc petrol engine, though engines vary between versions. 605 MOT tests were recorded on this model in 2024, making it a less common model in the UK market. It sits in the bottom 21% of 2021 models for MOT pass rate.
With an average of 32,917 miles recorded at its 2024 MOT tests, Audi A1 S Line Black Ed 25 TFSI S-A owners cover more miles than the average driver.
2021 Audi A1 S Line Black Ed 25 TFSI S-A Fuel Costs
The modest 999cc petrol engine keeps fuel costs low, which is a real advantage for a premium car. Expect around 50 mpg in mixed driving, which works out to roughly £1,175 per year with petrol at 174.57p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year).
What does it cost to own a 2021 Audi A1 S Line Black Ed 25 TFSI S-A?
Total estimated annual running cost is £1,780 (£148/month), broken down as £1,175 fuel, £200 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 89% pass rate. Keeping on top of servicing will help avoid surprises.
Buying a Used 2021 Audi A1 S Line Black Ed 25 TFSI S-A
At 5 years old, the Audi A1 S Line Black Ed 25 TFSI S-A offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost.
Common Issues to Watch For
These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.
Coil Pack Failure
Medium riskSmaller petrol engines are prone to ignition coil failures, causing misfires and rough running. Replacement is £50-£150 per coil.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2021 Audi A1 S Line Black Ed 25 TFSI S-A stacks up against similar cars for estimated annual running costs, insurance group, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Est. Ins. Group | Total/yr |
|---|---|---|---|---|---|
| Audi A1 S Line Black Ed 25 TFSI S-A(2021) | 89% | £1,175 | £200 | Grp 1-8 | £1,780 |
| Ford Fiesta(2019) | 91% | £1,175 | £200 | Grp 1-8 | £1,630-£150 |
| Volkswagen Golf(2019) | 92% | £1,398 | £200 | Grp 12-25 | £1,853+£73 |
| Vauxhall Corsa(2019) | 88% | £1,398 | £200 | Grp 8-20 | £2,003+£223 |
| MINI Cooper(2019) | 92% | £1,398 | £200 | Grp 12-25 | £1,853+£73 |
Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.
Questions about the 2021 Audi A1 S Line Black Ed 25 TFSI S-A
Is the 2021 Audi A1 S Line Black Ed 25 TFSI S-A reliable?
Good reliability. Occasional issues but generally solid. 89% of MOT tests on 2021 Audi A1 S Line Black Ed 25 TFSI S-As ended in a pass, from 605 tests (DVSA MOT data for tests in 2024, retests included). That's 7 points above the average of 82% across all models in the same data.
How much does a 2021 Audi A1 S Line Black Ed 25 TFSI S-A cost to run?
Our estimate is £1,780 a year (£148 a month): £1,175 fuel, £200 road tax, £55 MOT and £350 predicted repairs, based on 7,400 miles a year. Insurance is not included.
What is the MOT pass rate for a 2021 Audi A1 S Line Black Ed 25 TFSI S-A?
89% of 605 MOT tests on the 2021 Audi A1 S Line Black Ed 25 TFSI S-A ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 2654th of 3,336 models first registered in 2021 (bottom 21%).
What is the average mileage for a 2021 Audi A1 S Line Black Ed 25 TFSI S-A?
The average mileage recorded at MOT tests on the 2021 Audi A1 S Line Black Ed 25 TFSI S-A is 32,917 miles, which is above the expected 22,200 miles for a 3-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.
Related Audi Models
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