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MOT reliability

Triumph Tr 4a

6 vehicles · 63 completed MOT tests analysed
75%
MOT pass rate

Based on 6 Triumph Tr 4a vehicles and 63 completed MOT tests, the Triumph Tr 4a has an overall 75% pass rate, with an average recorded mileage of 50,640 miles.

6
Vehicles
63
MOT tests
428
Avg miles / year
1.3
Faults per test
0%
Dangerous-fault share

Triumph Tr 4a problem areas

Where faults occur most across all Triumph Tr 4a MOT tests:

  • Other85%
  • Emissions & nuisance7%
  • Steering7%
  • Brakes6%
  • Seatbelts & equipment5%
  • Tyres, wheels & suspension2%

Triumph Tr 4a pass rate by age

Age (years)TestsPass rate

Fuel types: Petrol (6)

Most common Triumph Tr 4a MOT faults

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

  1. Parking brake: efficiency below requirements (3.7.B.7) (4 times)
  2. Windscreen washer provides insufficient washer liquid (8.2.3) (3 times)
  3. Horn not working (1.6.2a) (3 times)
  4. Nearside Rear Rear wheel bearing has slight play (2.6.2) (3 times)
  5. Play in steering rack inner joint(s) (3 times)
  6. Nearside Front coil spring incomplete (2.4.C.1a) (2 times)
  7. Offside Front wheel bearing has slight play (2.5.A.3c) (2 times)
  8. Some wear,nearside of rack (2 times)
  9. Nearside Registration plate lamp not working (1.1.C.1d) (2 times)
  10. Nearside rear brake grabbing slightly (3.7.A.5b) (2 times)
  11. wiper operation slow (2 times)
  12. Nearside Front wheel bearing has slight play (2.5.A.3c) (2 times)
  13. Centre Exhaust mounting missing (7.1.1b) (1 times)
  14. Nearside Registration plate lamp not working (1.1.5c) (1 times)
  15. Nearside Suspension arm has excessive play in a pin/bush (2.4.G.2) (1 times)

Triumph Tr 4a pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
1980 1 13 69% 59,876
1967 2 34 74% 76,909
1966 3 16 81% 30,050

Triumph Tr 4a reliability FAQ

Across 6 Triumph Tr 4a vehicles in our MOT data, 75% pass the MOT (a 25% failure rate), with about 1.3 faults or advisories recorded per test.

The most frequently recorded Triumph Tr 4a MOT issues are: Parking brake: efficiency below requirements (3.7.B.7); Windscreen washer provides insufficient washer liquid (8.2.3); Horn not working (1.6.2a).

The typical Triumph Tr 4a in our data has covered around 50,640 miles.

Compare the Triumph Tr 4a

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

Tr 4a vs Toledo Tr 4a vs Unknown Tr 4a vs 2000 Tr 4a vs 1500

Check a specific Triumph Tr 4a

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