Alfa romeo 120 vs Alfa romeo 156: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Alfa romeo 120
69%
MOT pass rate · 1 vehicles
Alfa romeo 156
66%
MOT pass rate · 48,347 vehicles
Verdict: On MOT pass rate the Alfa romeo 120 (69%) and Alfa romeo 156 (66%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Alfa romeo 120 | Alfa romeo 156 |
|---|---|---|
| MOT pass rate | 69% ✓ | 66% |
| MOT failure rate | 31% ✓ | 34% |
| Faults & advisories per test | 2.5 | 2.3 ✓ |
| Dangerous-fault share | 0% | 0% |
| Average mileage | 77,125 mi | 109,793 mi |
| Sample size (vehicles) | 1 | 48,347 |
Most common faults
Alfa romeo 120
- Nearside Front coil spring broken (2.4.C.1a)
- rear exhaust box in poor condition
- Nearside Rear brake disc worn, pitted or scored, but not seriously weakened (3.5.1i)
- Offside Rear brake disc worn, pitted or scored, but not seriously weakened (3.5.1i)
- Nearside Front brake disc worn, pitted or scored, but not seriously weakened (3.5.1i)
- Offside Front brake disc modified but not seriously weakened (3.5.1n)
Alfa romeo 156
- 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)
- Nearside Front position lamp(s) not working (1.1.A.3b)
- Oil leak
Reliability FAQ
On MOT pass rate the Alfa romeo 120 (69%) and Alfa romeo 156 (66%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Alfa romeo 120 report Full Alfa romeo 156 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.