Audi A1 vs Audi Tt s line black edit tdi quat: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Audi A1
84%
MOT pass rate · 235,482 vehicles
Audi Tt s line black edit tdi quat
94%
MOT pass rate · 65 vehicles
More reliable
Verdict: On MOT pass rate, the Audi Tt s line black edit tdi quat is the more reliable of the two — 94% pass first time versus 84%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Audi A1 | Audi Tt s line black edit tdi quat |
|---|---|---|
| MOT pass rate | 84% | 94% ✓ |
| MOT failure rate | 16% | 6% ✓ |
| Faults & advisories per test | 1.5 | 0.0 ✓ |
| Dangerous-fault share | 5% | — ✓ |
| Average mileage | 67,791 mi | 101,685 mi |
| Sample size (vehicles) | 235,482 | 65 |
Most common faults
Audi A1
- 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))
- Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
- 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 Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))
Audi Tt s line black edit tdi quat
No fault breakdown available.
Reliability FAQ
On MOT pass rate, the Audi Tt s line black edit tdi quat is the more reliable of the two — 94% pass first time versus 84%. It's one signal among several; check the full breakdown below.
Full Audi A1 report Full Audi Tt s line black edit tdi quat 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.