Audi A1 vs Audi Rs4 quattr: 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 Rs4 quattr
80%
MOT pass rate · 1 vehicles
Verdict: On MOT pass rate the Audi A1 (84%) and Audi Rs4 quattr (80%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Audi A1 | Audi Rs4 quattr |
|---|---|---|
| MOT pass rate | 84% ✓ | 80% |
| MOT failure rate | 16% ✓ | 20% |
| Faults & advisories per test | 1.5 ✓ | 1.6 |
| Dangerous-fault share | 5% | 0% ✓ |
| Average mileage | 67,791 mi | 147,239 mi |
| Sample size (vehicles) | 235,482 | 1 |
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 Rs4 quattr
- Front registration plate character(s) incorrectly spaced (6.3.4a)
- Offside Rear Tie bar/rod has excessive play in a pin/bush (2.4.G.2)
- Parking brake: efficiency below requirements (3.7.B.7)
- Rear registration plate character(s) incorrectly spaced (6.3.4a)
- Tyre has a bulge, caused by separation or partial failure of its structure (4.1.D.1b)
- n/s/front tyre tread depth low on outer edge
Reliability FAQ
On MOT pass rate the Audi A1 (84%) and Audi Rs4 quattr (80%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Audi A1 report Full Audi Rs4 quattr 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.