Audi A4 vs Audi Sq2: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Audi A4
76%
MOT pass rate · 568,515 vehicles
Audi Sq2
100%
MOT pass rate · 3 vehicles
Verdict: On MOT pass rate the Audi A4 (76%) and Audi Sq2 (100%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Audi A4 | Audi Sq2 |
|---|---|---|
| MOT pass rate | 76% | 100% ✓ |
| MOT failure rate | 24% | 0% ✓ |
| Faults & advisories per test | 1.9 | 0.4 ✓ |
| Dangerous-fault share | 2% | 0% ✓ |
| Average mileage | 133,841 mi | 31,249 mi |
| Sample size (vehicles) | 568,515 | 3 |
Most common faults
Audi A4
- 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)
- Under-trays fitted obscuring some underside components
- Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
Audi Sq2
- engine bay covers fitted.
- vehicle under trays fitted.
- Nearside Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
- Offside Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
Reliability FAQ
On MOT pass rate the Audi A4 (76%) and Audi Sq2 (100%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Audi A4 report Full Audi Sq2 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.