AUDI RS Q3 TFSI QUATTRO S-A (2021)
Running costs, reliability data, and common problems from 405 real MOT tests.
Annual Cost
£2,042
£170/month
MOT Pass Rate
95%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 25-38
2480cc Petrol
Great Choice
95% pass rate, £2042/year to run. 13 points above average.
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Annual Running Costs
~30 mpg
Flat rate (post-2017)
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Excellent reliability. Very few MOT failures. That's 13 points above the national average of 82%. It also outperforms the AUDI brand average of 90%.
At 5 years old, 95% of AUDI RS Q3 TFSI QUATTRO S-As from 2021 passed their MOT first time in 2026. That's based on 405 tests across the UK. The average mileage at this age is 24,804 miles.
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How Does It Compare?
Mileage Analysis
24,804
Average miles
37,000
Expected for age
The average 2021 AUDI RS Q3 TFSI QUATTRO S-A has 24,804 miles on the clock, which is below the expected 37,000 miles for a 5-year-old car. This suggests lighter use than average, which generally means less wear on major components.
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Best Year to Buy?
The most reliable year is the 2019 model with a 97% MOT pass rate, while the 2020 model has the lowest at 93%. The 2021 sits between the two at 95%.
AUDI RS Q3 TFSI QUATTRO S-A by Year
Similar Cars to Consider
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About the 2021 AUDI RS Q3 TFSI QUATTRO S-A
The 2021 AUDI RS Q3 TFSI QUATTRO S-A is a premium with a 2480cc petrol engine. 405 of these vehicles were MOT tested in 2026, 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 beats that benchmark.
With an average of 24,804 miles at 5 years old, AUDI RS Q3 TFSI QUATTRO S-A owners tend to use this car less than the typical driver.
2021 AUDI RS Q3 TFSI QUATTRO S-A Fuel Costs
The 2480cc petrol engine offers a reasonable balance between performance and economy. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 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 RS Q3 TFSI QUATTRO S-A?
Total estimated annual running cost is £2,042 (£170/month), broken down as £1592 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 95% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
AUDI RS Q3 TFSI QUATTRO S-A Reliability Trend
The AUDI RS Q3 TFSI QUATTRO S-A has maintained consistent MOT pass rates across model years, varying by only 3 percentage points.
Buying a Used 2021 AUDI RS Q3 TFSI QUATTRO S-A
At 5 years old, the AUDI RS Q3 TFSI QUATTRO 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. If you're flexible on year, the 2019 model has the highest pass rate at 97%.
Common Issues to Watch For
Based on the 2021 AUDI RS Q3 TFSI QUATTRO S-A's fuel type, age, and engine size, these are the most likely problem areas to check.
Oil Consumption
Low riskLarger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.
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 RS Q3 TFSI QUATTRO S-A stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| AUDI RS Q3 TFSI QUATTRO S-A(2021) | 95% | £1592 | £195 | Grp 25-38 | £2042 |
| MERCEDES A(2021) | 94% | £1327 | £190 | Grp 18-32 | £1772-£270 |
| VOLVO XC40(2020) | 93% | £1327 | £190 | Grp 18-32 | £1772-£270 |
| FORD RANGER(2021) | 90% | £1592 | £190 | Grp 25-38 | £2037-£5 |
| JAGUAR F-PACE(2019) | 91% | £1327 | £190 | Grp 18-32 | £1772-£270 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
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