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MOT reliability

Triumph 4

3 vehicles · 44 completed MOT tests analysed
66%
MOT pass rate

Based on 3 Triumph 4 vehicles and 44 completed MOT tests, the Triumph 4 has an overall 66% pass rate, with an average recorded mileage of 44,167 miles.

3
Vehicles
44
MOT tests
232
Avg miles / year
1.2
Faults per test
0%
Dangerous-fault share

Triumph 4 problem areas

Where faults occur most across all Triumph 4 MOT tests:

  • Other102%
  • Brakes8%
  • Emissions & nuisance6%
  • Body & structure4%
  • Visibility4%
  • Identification & plates2%
  • Steering2%

Fuel types: Petrol (3)

Most common Triumph 4 MOT faults

These are the faults and advisories recorded most often across Triumph 4 MOT tests:

  1. Direction indicators not working (1.4.A.2c) (2 times)
  2. Nearside rear brake binding (3.7.B.1) (2 times)
  3. corrosion on underside components (2 times)
  4. non standard rear exhaust mount (2 times)
  5. Brakes imbalanced across an axle (3.7.B.5b) (2 times)
  6. Parking brake: efficiency below requirements (3.7.B.7) (2 times)
  7. Nearside non standard rear exhaust mount (2 times)
  8. slight play in steering column top mounting (2 times)
  9. Offside Front Front wheel bearing has slight play (2.5.A.3c) (2 times)
  10. Parking brake lever has little reserve travel (3.1.6b) (2 times)
  11. Nearside Front Brake hose excessively deteriorated (3.6.B.4d) (1 times)
  12. Nearside Front Lower Front suspension has excessive play in a pin or bush of a lower wishbone inner bearing (2.5.B.1a) (1 times)
  13. Nearside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1) (1 times)
  14. Nearside Front Brake pad(s) less than 1.5 mm thick (3.5.1g) (1 times)
  15. Nearside Front Windscreen wiper blade missing (8.2.2) (1 times)

Triumph 4 pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
1965 1 19 58% 11,175
1964 1 10 90% 54,529
1963 1 15 60% 66,798

Triumph 4 reliability FAQ

Across 3 Triumph 4 vehicles in our MOT data, 66% pass the MOT (a 34% failure rate), with about 1.2 faults or advisories recorded per test.

The most frequently recorded Triumph 4 MOT issues are: Direction indicators not working (1.4.A.2c); Nearside rear brake binding (3.7.B.1); corrosion on underside components.

The typical Triumph 4 in our data has covered around 44,167 miles.

Compare the Triumph 4

See how the Triumph 4 stacks up against other Triumph models on MOT reliability:

4 vs Toledo 4 vs Unknown 4 vs 2000 4 vs 1500

Check a specific Triumph 4

Enter a registration to see that exact vehicle's full MOT history, advisories and recurring faults.

See all Triumph models · Learn about common MOT failures · what an MOT checks