Audi A3 vs Audi Q3 s line 35 tfsi: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Audi A3
78%
MOT pass rate · 586,036 vehicles
Audi Q3 s line 35 tfsi
92%
MOT pass rate · 5,429 vehicles
More reliable
Verdict: On MOT pass rate, the Audi Q3 s line 35 tfsi is the more reliable of the two — 92% pass first time versus 78%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Audi A3 | Audi Q3 s line 35 tfsi |
|---|---|---|
| MOT pass rate | 78% | 92% ✓ |
| MOT failure rate | 22% | 8% ✓ |
| Faults & advisories per test | 1.8 | 1.2 ✓ |
| Dangerous-fault share | 3% ✓ | 4% |
| Average mileage | 112,882 mi | 37,445 mi |
| Sample size (vehicles) | 586,036 | 5,429 |
Most common faults
Audi A3
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Nearside Front Tyre worn close to the legal limit (4.1.E.1)
- Offside Front Tyre worn close to the legal limit (4.1.E.1)
- Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
- Offside Rear Tyre worn close to the legal limit (4.1.E.1)
Audi Q3 s line 35 tfsi
- Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
- Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
- Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
- Nearside Front Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
Reliability FAQ
On MOT pass rate, the Audi Q3 s line 35 tfsi is the more reliable of the two — 92% pass first time versus 78%. It's one signal among several; check the full breakdown below.
Full Audi A3 report Full Audi Q3 s line 35 tfsi report Most reliable cars
Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.