AUDI A3 S LINE 40 TFSI E S-A (2021)
Running costs, common problems, and reliability data based on 5,925 real MOT tests in 2024.
MOT Pass Rate
91%
Total Tests (2024)
5,925
Avg Mileage
32,937 mi
Est. Annual Cost
£1,582
Is the 2021 AUDI A3 S LINE 40 TFSI E S-A reliable?
Excellent reliability. Very few MOT failures. That's 9 points above the national average of 82%.
At 3 years old, 91% of AUDI A3 S LINE 40 TFSI E S-As from 2021 passed their MOT first time in 2024. That's based on 5,925 tests across the UK. The average mileage at this age is 32,937 miles.
How does the 2021 AUDI A3 S LINE 40 TFSI E S-A compare?
Mileage Analysis
The average 2021 AUDI A3 S LINE 40 TFSI E S-A has 32,937 miles on the clock, 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.
Best year to buy a AUDI A3 S LINE 40 TFSI E S-A?
The most reliable year is the 2022 model with a 95% MOT pass rate, while the 2020 model has the lowest at 88%. The 2021 sits between the two at 91%.
How much does a 2021 AUDI A3 S LINE 40 TFSI E S-A cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
AUDI A3 S LINE 40 TFSI E S-A by Year
Checking a specific AUDI A3 S LINE 40 TFSI E S-A?
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About the 2021 AUDI A3 S LINE 40 TFSI E S-A
The 2021 AUDI A3 S LINE 40 TFSI E S-A is a premium with a 1395cc hybrid engine. 5,925 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 falls short of that benchmark.
With an average of 32,937 miles at 3 years old, AUDI A3 S LINE 40 TFSI E S-A owners cover more miles than the average driver.
2021 AUDI A3 S LINE 40 TFSI E S-A Fuel Costs
The 1395cc hybrid engine offers a reasonable balance between performance and economy. Expect around 42 mpg in mixed driving, which works out to roughly £1,137 per year at current hybrid prices of 142p per litre (based on 7,400 miles per year). As a hybrid, real-world fuel costs will vary significantly depending on how much electric-only driving you do.
What does it cost to own a 2021 AUDI A3 S LINE 40 TFSI E S-A?
Total estimated annual running cost is £1,582 (£132/month), broken down as £1137 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 91% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
AUDI A3 S LINE 40 TFSI E S-A Reliability Trend
Newer AUDI A3 S LINE 40 TFSI E S-As show better MOT pass rates than older ones, with an average improvement of 5 percentage points.
Buying a Used 2021 AUDI A3 S LINE 40 TFSI E S-A
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. If you're flexible on year, the 2022 model has the highest pass rate at 95%. With 5,925 MOT tests in our data, there's strong statistical confidence in these figures.
Alternatives to the 2021 AUDI A3 S LINE 40 TFSI E S-A
If reliability is your priority, there are 4 similar cars with a higher MOT pass rate. Here are comparable hybrid cars with similar engines:
- TOYOTA YARIS (2019) 93% pass rate (+2%) from 41,554 tests
- MINI COOPER S (2019) 92% pass rate (+1%) from 33,682 tests
- VOLVO XC40 (2021) 93% pass rate (+2%) from 25,698 tests
- MINI COUNTRYMAN (2019) 93% pass rate (+2%) from 25,254 tests