Triumph 1500 vs Triumph Sparton: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Triumph 1500
74%
MOT pass rate · 37,142 vehicles
Triumph Sparton
90%
MOT pass rate · 9 vehicles
Verdict: On MOT pass rate the Triumph 1500 (74%) and Triumph Sparton (90%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Triumph 1500 | Triumph Sparton |
|---|---|---|
| MOT pass rate | 74% | 90% ✓ |
| MOT failure rate | 26% | 10% ✓ |
| Faults & advisories per test | 2.3 | 0.9 ✓ |
| Dangerous-fault share | 0% ✓ | 2% |
| Average mileage | 58,068 mi | 43,740 mi |
| Sample size (vehicles) | 37,142 | 9 |
Most common faults
Triumph 1500
- Parking brake: efficiency below requirements (3.7.B.7)
- Windscreen washer provides insufficient washer liquid (8.2.3)
- Nearside Rear wheel bearing has slight play (2.6.2)
- Offside Rear wheel bearing has slight play (2.6.2)
- Brakes imbalanced across an axle (3.7.B.5b)
- Oil leak
Triumph Sparton
- Service brake: efficiency below requirements (3.7.B.7)
- Offside Front wheel bearing has slight play (2.5.A.3c)
- Offside Front Brake hose slightly deteriorated (3.6.B.4d)
- Both rear tyres cracking in tread
- Exhaust noisy (8.1.1 (a))
- Front Brake pad(s) wearing thin (1.1.13 (a) (ii))
Reliability FAQ
On MOT pass rate the Triumph 1500 (74%) and Triumph Sparton (90%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Triumph 1500 report Full Triumph Sparton 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.