AUDI A3 S LINE COMP 45 TFSI E SA (2021)
Running costs, common problems, and reliability data based on 567 real MOT tests in 2024.
MOT Pass Rate
92%
Total Tests (2024)
567
Avg Mileage
34,384 mi
Est. Annual Cost
£1,582
Is the 2021 AUDI A3 S LINE COMP 45 TFSI E SA reliable?
Excellent reliability. Very few MOT failures. That's 10 points above the national average of 82%.
At 3 years old, 92% of AUDI A3 S LINE COMP 45 TFSI E SAs from 2021 passed their MOT first time in 2024. That's based on 567 tests across the UK. The average mileage at this age is 34,384 miles.
How does the 2021 AUDI A3 S LINE COMP 45 TFSI E SA compare?
Mileage Analysis
The average 2021 AUDI A3 S LINE COMP 45 TFSI E SA has 34,384 miles on the clock, which is well above the expected 22,200 miles for a 3-year-old car. Check service history carefully, as high-mileage cars need consistent maintenance to stay reliable.
How much does a 2021 AUDI A3 S LINE COMP 45 TFSI E SA 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.
Checking a specific AUDI A3 S LINE COMP 45 TFSI E SA?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 AUDI A3 S LINE COMP 45 TFSI E SA
The 2021 AUDI A3 S LINE COMP 45 TFSI E SA is a premium with a 1395cc hybrid engine. 567 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. Among all cars from 2021, the average MOT pass rate is 92%, and this model falls short of that benchmark.
With an average of 34,384 miles at 3 years old, AUDI A3 S LINE COMP 45 TFSI E SA owners cover more miles than the average driver. High-mileage examples should be checked carefully for wear on suspension, brakes, and drivetrain components.
2021 AUDI A3 S LINE COMP 45 TFSI E SA 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 COMP 45 TFSI E SA?
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 92% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Buying a Used 2021 AUDI A3 S LINE COMP 45 TFSI E SA
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 S LINE COMP 45 TFSI E SA
If reliability is your priority, there are 3 similar cars with a higher MOT pass rate. Here are comparable hybrid cars with similar engines:
- TOYOTA YARIS (2019) 93% pass rate (+1%) from 41,554 tests
- MINI COOPER S (2019) 92% pass rate (same) from 33,682 tests
- VOLVO XC40 (2021) 93% pass rate (+1%) from 25,698 tests
- MINI COUNTRYMAN (2019) 93% pass rate (+1%) from 25,254 tests