Audi A3 vs Audi Tt s: 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 Tt s
85%
MOT pass rate · 7 vehicles
Verdict: On MOT pass rate the Audi A3 (78%) and Audi Tt s (85%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Audi A3 | Audi Tt s |
|---|---|---|
| MOT pass rate | 78% | 85% ✓ |
| MOT failure rate | 22% | 15% ✓ |
| Faults & advisories per test | 1.8 | 1.4 ✓ |
| Dangerous-fault share | 3% | 0% ✓ |
| Average mileage | 112,882 mi | 76,972 mi |
| Sample size (vehicles) | 586,036 | 7 |
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 Tt s
- Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
- Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
- front brake discs slightly scored
- Nearside Front Coil spring corroded (5.3.1 (b) (i))
- Nearside 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)
Reliability FAQ
On MOT pass rate the Audi A3 (78%) and Audi Tt s (85%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Audi A3 report Full Audi Tt s 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.