Triumph 1500 vs Triumph Mayflower: 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 Mayflower
81%
MOT pass rate · 88 vehicles
More reliable
Verdict: On MOT pass rate, the Triumph Mayflower is the more reliable of the two — 81% pass first time versus 74%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Triumph 1500 | Triumph Mayflower |
|---|---|---|
| MOT pass rate | 74% | 81% ✓ |
| MOT failure rate | 26% | 19% ✓ |
| Faults & advisories per test | 2.3 | 1.2 ✓ |
| Dangerous-fault share | 0% | 0% |
| Average mileage | 58,068 mi | 55,327 mi |
| Sample size (vehicles) | 37,142 | 88 |
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 Mayflower
- Oil leak
- Brakes imbalanced across an axle (3.7.B.5b)
- Parking brake: efficiency below requirements (3.7.B.7)
- Nearside Steering pivot point has slight play (2.2.B.1g)
- Steering system has slight free play detected at steering wheel (2.2.A.1a)
- Offside Front Upper Suspension arm rubber bush deteriorated but not resulting in excessive movement (2.4.G.2)
Reliability FAQ
On MOT pass rate, the Triumph Mayflower is the more reliable of the two — 81% pass first time versus 74%. It's one signal among several; check the full breakdown below.
Full Triumph 1500 report Full Triumph Mayflower 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.