CarCostCheck

AUDI A3 SPORT 30 TFSI (2021)

Running costs, common problems, and reliability data based on 1,713 real MOT tests in 2024.

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MOT Pass Rate

93%

Total Tests (2024)

1,713

Avg Mileage

25,434 mi

Est. Annual Cost

£1,400

Is the 2021 AUDI A3 SPORT 30 TFSI reliable?

Excellent reliability. Very few MOT failures. That's 11 points above the national average of 82%.

At 3 years old, 93% of AUDI A3 SPORT 30 TFSIs from 2021 passed their MOT first time in 2024. That's based on 1,713 tests across the UK. The average mileage at this age is 25,434 miles.

How does the 2021 AUDI A3 SPORT 30 TFSI compare?

Rank among all 2021 cars1503th out of 3,373(top 45%)
Rank among all AUDI models419th out of 1,079(top 39%)
vs national average+11% (82% avg)
vs 2021 cars average+1% (92% avg)
vs AUDI average+3% (90% avg)

Mileage Analysis

The average 2021 AUDI A3 SPORT 30 TFSI has 25,434 miles on the clock, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.

How much does a 2021 AUDI A3 SPORT 30 TFSI cost to run?

⛽Fuel (Petrol, 999cc)
£955
🏛️Road Tax
£190
🔧MOT Test
£55
🛠️Predicted Repairs
£200
Total per year£1,400
Per month£117/mo

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.

AUDI A3 SPORT 30 TFSI by Year

YearPass RateTestsAvg Mileage
202297%3621,185 mi
202193%1,71325,434 mi
202092%1,14732,497 mi

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About the 2021 AUDI A3 SPORT 30 TFSI

The 2021 AUDI A3 SPORT 30 TFSI is a premium with a 999cc petrol engine. 1,713 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. Among all cars from 2021, the average MOT pass rate is 92%, and this model beats that benchmark.

With an average of 25,434 miles at 3 years old, AUDI A3 SPORT 30 TFSI owners drive about as much as the UK average.

2021 AUDI A3 SPORT 30 TFSI Fuel Costs

The modest 999cc petrol engine keeps fuel costs low, which is a real advantage for a premium. Expect around 50 mpg in mixed driving, which works out to roughly £955 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).

What does it cost to own a 2021 AUDI A3 SPORT 30 TFSI?

Total estimated annual running cost is £1,400 (£117/month), broken down as £955 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 93% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 2021 AUDI A3 SPORT 30 TFSI

At 3 years old, this is still relatively fresh. You may find examples with remaining manufacturer warranty. Depreciation is slowing but hasn't bottomed out yet.

Alternatives to the 2021 AUDI A3 SPORT 30 TFSI

The AUDI A3 SPORT 30 TFSI is actually the most reliable option among similar petrol premiums from this era. Here are comparable petrol cars with similar engines: