AUDI A3 SPORT 35 TDI S-A (2021)
Running costs, common problems, and reliability data based on 188 real MOT tests in 2024.
MOT Pass Rate
85%
Total Tests (2024)
188
Avg Mileage
44,679 mi
Est. Annual Cost
£1,632
Is the 2021 AUDI A3 SPORT 35 TDI S-A reliable?
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%. It falls below the AUDI brand average of 90%.
At 3 years old, 85% of AUDI A3 SPORT 35 TDI S-As from 2021 passed their MOT first time in 2024. That's based on 188 tests across the UK. The average mileage at this age is 44,679 miles.
How does the 2021 AUDI A3 SPORT 35 TDI S-A compare?
Mileage Analysis
The average 2021 AUDI A3 SPORT 35 TDI S-A has 44,679 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.
Best year to buy a AUDI A3 SPORT 35 TDI S-A?
The most reliable year is the 2020 model with a 86% MOT pass rate, while the 2021 model has the lowest at 85%. Consider a different year if reliability is a priority.
How much does a 2021 AUDI A3 SPORT 35 TDI 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.
Checking a specific AUDI A3 SPORT 35 TDI S-A?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2021 AUDI A3 SPORT 35 TDI S-A
The 2021 AUDI A3 SPORT 35 TDI S-A is a premium with a 1968cc diesel engine. 188 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It sits in the bottom 92% of 2021 cars for MOT pass rates.
With an average of 44,679 miles at 3 years old, AUDI A3 SPORT 35 TDI S-A 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 SPORT 35 TDI S-A Fuel Costs
The 1968cc diesel engine offers a reasonable balance between performance and economy. Expect around 48 mpg in mixed driving, which works out to roughly £1,037 per year at current diesel prices of 148p per litre (based on 7,400 miles per year).
What does it cost to own a 2021 AUDI A3 SPORT 35 TDI S-A?
Total estimated annual running cost is £1,632 (£136/month), broken down as £1037 fuel, £190 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 85% pass rate. Keeping on top of servicing will help avoid surprises.
Buying a Used 2021 AUDI A3 SPORT 35 TDI 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.
Alternatives to the 2021 AUDI A3 SPORT 35 TDI S-A
If reliability is your priority, there are 4 similar cars with a higher MOT pass rate. Here are comparable diesel cars with similar engines:
- FORD FOCUS (2019) 89% pass rate (+4%) from 93,803 tests
- FORD KUGA (2019) 91% pass rate (+6%) from 72,831 tests
- VOLKSWAGEN POLO (2019) 89% pass rate (+4%) from 65,751 tests
- FORD TRANSIT CUSTOM (2019) 87% pass rate (+2%) from 59,814 tests