CarCostCheck

AUDI Q3 S LINE 35 TFSI MHEV S-A (2021)

Running costs, common problems, and reliability data based on 3,760 real MOT tests in 2024.

MOT Pass Rate

95%

Total Tests (2024)

3,760

Avg Mileage

25,986 mi

Est. Annual Cost

£1,582

Is the 2021 AUDI Q3 S LINE 35 TFSI MHEV S-A reliable?

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 3 years old, 95% of AUDI Q3 S LINE 35 TFSI MHEV S-As from 2021 passed their MOT first time in 2024. That's based on 3,760 tests across the UK. The average mileage at this age is 25,986 miles.

How does the 2021 AUDI Q3 S LINE 35 TFSI MHEV S-A compare?

Rank among all 2021 cars747th out of 3,373(top 22%)
Rank among all AUDI models193th out of 1,079(top 18%)
vs national average+13% (82% avg)
vs 2021 cars average+3% (92% avg)
vs AUDI average+5% (90% avg)

Mileage Analysis

The average 2021 AUDI Q3 S LINE 35 TFSI MHEV S-A has 25,986 miles on the clock, which is in line with the expected 22,200 miles for a 3-year-old car, suggesting normal everyday use.

Best year to buy a AUDI Q3 S LINE 35 TFSI MHEV S-A?

The most reliable year is the 2020 model with a 95% MOT pass rate, while the 2022 model has the lowest at 95%. The 2021 sits between the two at 95%.

How much does a 2021 AUDI Q3 S LINE 35 TFSI MHEV S-A cost to run?

Fuel (Petrol, 1498cc)
£1,137
🏛️Road Tax
£190
🔧MOT Test
£55
🛠️Predicted Repairs
£200
Total per year£1,582
Per month£132/mo

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

AUDI Q3 S LINE 35 TFSI MHEV S-A by Year

YearPass RateTestsAvg Mileage
202295%26322,357 mi
202195%3,76025,986 mi
202095%5,29930,748 mi

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About the 2021 AUDI Q3 S LINE 35 TFSI MHEV S-A

The 2021 AUDI Q3 S LINE 35 TFSI MHEV S-A is a premium with a 1498cc petrol engine. 3,760 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. It ranks in the top 22% of all 2021 cars for reliability.

With an average of 25,986 miles at 3 years old, AUDI Q3 S LINE 35 TFSI MHEV S-A owners drive about as much as the UK average.

2021 AUDI Q3 S LINE 35 TFSI MHEV S-A Fuel Costs

The 1498cc petrol 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 petrol prices of 142p per litre (based on 7,400 miles per year).

What does it cost to own a 2021 AUDI Q3 S LINE 35 TFSI MHEV 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 95% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

AUDI Q3 S LINE 35 TFSI MHEV S-A Reliability Trend

The AUDI Q3 S LINE 35 TFSI MHEV S-A has maintained consistent MOT pass rates across model years, varying by only 0 percentage points.

Buying a Used 2021 AUDI Q3 S LINE 35 TFSI MHEV 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 2020 model has the highest pass rate at 95%.

Alternatives to the 2021 AUDI Q3 S LINE 35 TFSI MHEV S-A

The AUDI Q3 S LINE 35 TFSI MHEV S-A is actually the most reliable option among similar petrol premiums from this era. Here are comparable petrol cars with similar engines: