Seat Leon vs Seat Leon st: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Seat Leon
78%
MOT pass rate · 262,792 vehicles
Seat Leon st
89%
MOT pass rate · 17 vehicles
Verdict: On MOT pass rate the Seat Leon (78%) and Seat Leon st (89%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Seat Leon | Seat Leon st |
|---|---|---|
| MOT pass rate | 78% | 89% ✓ |
| MOT failure rate | 22% | 11% ✓ |
| Faults & advisories per test | 1.8 | 1.4 ✓ |
| Dangerous-fault share | 3% ✓ | 4% |
| Average mileage | 103,954 mi | 94,170 mi |
| Sample size (vehicles) | 262,792 | 17 |
Most common faults
Seat Leon
- 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))
- 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 Shock absorbers has light misting of oil (5.3.2 (b))
- Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
Seat Leon st
- Nearside Front Shock absorbers has light misting of oil (5.3.2 (b))
- Nearside Front Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))
- Front Sub-frame corroded but not seriously weakened (5.3.3 (b) (i))
- Rear Brake pad(s) wearing thin (1.1.13 (a) (ii))
- Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii))
- Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
Reliability FAQ
On MOT pass rate the Seat Leon (78%) and Seat Leon st (89%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Seat Leon report Full Seat Leon st 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.