Audi A3 1.8t sport vs Audi A6: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Audi A3 1.8t sport
71%
MOT pass rate · 408 vehicles
Audi A6
78%
MOT pass rate · 246,602 vehicles
Verdict: On MOT pass rate the Audi A3 1.8t sport (71%) and Audi A6 (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Audi A3 1.8t sport | Audi A6 |
|---|---|---|
| MOT pass rate | 71% | 78% ✓ |
| MOT failure rate | 29% | 22% ✓ |
| Faults & advisories per test | 0.0 ✓ | 1.7 |
| Dangerous-fault share | — ✓ | 2% |
| Average mileage | 131,358 mi | 136,441 mi |
| Sample size (vehicles) | 408 | 246,602 |
Most common faults
Audi A3 1.8t sport
No fault breakdown available.
Audi A6
- 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 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))
- 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)
Reliability FAQ
On MOT pass rate the Audi A3 1.8t sport (71%) and Audi A6 (78%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Audi A3 1.8t sport report Full Audi A6 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.