CarCostCheck

AUDI A3 (2015)

Running costs, common problems, and reliability data based on 80,797 real MOT tests in 2024.

MOT Pass Rate

88%

Total Tests (2024)

80,797

Avg Mileage

78,897 mi

Est. Annual Cost

£1,445

Is the 2015 AUDI A3 reliable?

Good reliability. Occasional issues but generally solid. That's 6 points above the national average of 82%.

At 9 years old, 88% of AUDI A3s from 2015 passed their MOT first time in 2024. That's based on 80,797 tests across the UK. The average mileage at this age is 78,897 miles.

How does the 2015 AUDI A3 compare?

Rank among all 2015 cars209th out of 559(top 37%)
Rank among all AUDI models769th out of 1,079(top 71%)
vs national average+6% (82% avg)
vs 2015 cars average+5% (83% avg)
vs AUDI average-2% (90% avg)

Mileage Analysis

The average 2015 AUDI A3 has 78,897 miles on the clock, which is in line with the expected 66,600 miles for a 9-year-old car, suggesting normal everyday use.

Best year to buy a AUDI A3?

The most reliable year is the 2021 model with a 94% MOT pass rate, while the 1997 model has the lowest at 68%. The 2015 sits between the two at 88%.

How much does a 2015 AUDI A3 cost to run?

Fuel (Diesel, 1598cc)
£905
🏛️Road Tax
£135
🔧MOT Test
£55
🛠️Predicted Repairs
£350
Total per year£1,445
Per month£120/mo

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

AUDI A3 by Year

YearPass RateTestsAvg Mileage
202194%54726,069 mi
202093%10,05934,019 mi
201992%41,21542,207 mi
201892%54,11049,870 mi
201791%68,02359,583 mi
201690%75,82368,522 mi
201588%80,79778,897 mi
201486%77,63989,137 mi
201384%55,98199,882 mi
201280%52,278108,680 mi
201179%44,226116,751 mi
201077%50,328117,064 mi
200977%46,405123,921 mi
200876%39,032129,049 mi
200775%30,361136,508 mi
200673%24,088138,100 mi
200572%15,865139,734 mi
200472%7,027137,597 mi
200374%3,274137,992 mi
200272%2,361141,296 mi
200174%1,685130,310 mi
200071%1,019128,899 mi
199972%888127,410 mi
199870%872125,923 mi
199768%385128,771 mi

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About the 2015 AUDI A3

The 2015 AUDI A3 is a premium with a 1598cc diesel engine. 80,797 of these vehicles were MOT tested in 2024, making it one of the most commonly tested cars on UK roads. Among all cars from 2015, the average MOT pass rate is 83%, and this model beats that benchmark.

With an average of 78,897 miles at 9 years old, AUDI A3 owners drive about as much as the UK average.

2015 AUDI A3 Fuel Costs

The 1598cc diesel engine offers a reasonable balance between performance and economy. Expect around 55 mpg in mixed driving, which works out to roughly £905 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.

What does it cost to own a 2015 AUDI A3?

Total estimated annual running cost is £1,445 120/month), broken down as £905 fuel, £135 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 88% pass rate. Keeping on top of servicing will help avoid surprises.

AUDI A3 Reliability Trend

Newer AUDI A3s show better MOT pass rates than older ones, with an average improvement of 14 percentage points.

Buying a Used 2015 AUDI A3

At 9 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. If you're flexible on year, the 2021 model has the highest pass rate at 94%. With 80,797 MOT tests in our data, there's strong statistical confidence in these figures.

Alternatives to the 2015 AUDI A3

If reliability is your priority, there's one similar car with a higher MOT pass rate. Here are comparable diesel cars with similar engines: