Triumph 1500 vs Triumph Avenger: 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 Avenger
88%
MOT pass rate · 3 vehicles
Verdict: On MOT pass rate the Triumph 1500 (74%) and Triumph Avenger (88%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Triumph 1500 | Triumph Avenger |
|---|---|---|
| MOT pass rate | 74% | 88% ✓ |
| MOT failure rate | 26% | 12% ✓ |
| Faults & advisories per test | 2.3 | 1.6 ✓ |
| Dangerous-fault share | 0% | 0% |
| Average mileage | 58,068 mi | 23,227 mi |
| Sample size (vehicles) | 37,142 | 3 |
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 Avenger
- Exhaust noisy (7.1.2)
- Front Brake pad(s) close to minimum limit (3.2.A1f(i))
- Front Front position lamp does not illuminate immediately when switched on (1.1.3a)
- Front Headlamp at least one does not illuminate on dipped beam (1.2.2a(i))
- Front Headlamp at least one does not illuminate on main beam (1.2.2a(ii))
- Front Stop lamp does not illuminate immediately a brake applies (1.3.1a)
Reliability FAQ
On MOT pass rate the Triumph 1500 (74%) and Triumph Avenger (88%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Triumph 1500 report Full Triumph Avenger 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.