Seat Arona vs Seat Terra: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Seat Arona
87%
MOT pass rate · 42,906 vehicles
More reliable
Seat Terra
61%
MOT pass rate · 3,192 vehicles
Verdict: On MOT pass rate, the Seat Arona is the more reliable of the two — 87% pass first time versus 61%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Seat Arona | Seat Terra |
|---|---|---|
| MOT pass rate | 87% ✓ | 61% |
| MOT failure rate | 13% ✓ | 39% |
| Faults & advisories per test | 1.2 ✓ | 2.8 |
| Dangerous-fault share | 6% | 0% ✓ |
| Average mileage | 43,681 mi | 65,059 mi |
| Sample size (vehicles) | 42,906 | 3,192 |
Most common faults
Seat Arona
- 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))
- Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
- 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))
Seat Terra
- Parking brake: efficiency below requirements (3.7.B.7)
- Nearside Front Macpherson strut has slight movement at the upper attachment (2.5.A.1c)
- Offside Front Macpherson strut has slight movement at the upper attachment (2.5.A.1c)
- Oil leak
- Brakes imbalanced across an axle (3.7.B.5b)
- Nearside Front Brake hose slightly deteriorated (3.6.B.4d)
Reliability FAQ
On MOT pass rate, the Seat Arona is the more reliable of the two — 87% pass first time versus 61%. It's one signal among several; check the full breakdown below.
Full Seat Arona report Full Seat Terra 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.