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MOT reliability

Triumph Tr 3a

4 vehicles · 39 completed MOT tests analysed
79%
MOT pass rate

Based on 4 Triumph Tr 3a vehicles and 39 completed MOT tests, the Triumph Tr 3a has an overall 79% pass rate, with an average recorded mileage of 77,208 miles.

4
Vehicles
39
MOT tests
847
Avg miles / year
1.4
Faults per test
0%
Dangerous-fault share

Triumph Tr 3a problem areas

Where faults occur most across all Triumph Tr 3a MOT tests:

  • Other66%
  • Tyres, wheels & suspension23%
  • Steering17%
  • Emissions & nuisance8%
  • Brakes6%

Triumph Tr 3a pass rate by age

Age (years)TestsPass rate
71100%
81100%
91100%
111100%
12250%

Fuel types: Petrol (4)

Most common Triumph Tr 3a MOT faults

These are the faults and advisories recorded most often across Triumph Tr 3a MOT tests:

  1. Oil leak (3 times)
  2. Offside Rear rear brake recording little or no effort (3.7.B.5a) (2 times)
  3. Battery Insecure (2 times)
  4. offside and nearside front tyres starting to deteriorate on tread area (2 times)
  5. offside and nearside rear tyres starting to deteriorate in tread area (2 times)
  6. Oil leak, but not excessive (8.4.1 (a) (i)) (2 times)
  7. Steering box slight play between sector shaft and the drop arm (2.1.3 (a) (ii)) (2 times)
  8. Nearside Front Lower Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i)) (2 times)
  9. Steering system slightly rough (2.2.D.1) (2 times)
  10. Inner Drag link end ball joint has slight play (2.2.B.1f) (1 times)
  11. Nearside Front Lower Steering pivot point has slight play (2.2.B.1g) (1 times)
  12. Nearside Front Lower Suspension arm has slight play in a pin/bush (2.4.G.2) (1 times)
  13. Nearside Front Tyre tread depth below requirements of 1.6mm (4.1.E.1) (1 times)
  14. Parking brake: efficiency below requirements (3.7.B.7) (1 times)
  15. Direction indicators flashing more than 120 times a minute (1.4.A.2g) (1 times)

Triumph Tr 3a pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
1998 1 6 83% 65,576
1959 3 33 79% 83,024

Triumph Tr 3a reliability FAQ

Across 4 Triumph Tr 3a vehicles in our MOT data, 79% pass the MOT (a 21% failure rate), with about 1.4 faults or advisories recorded per test.

The most frequently recorded Triumph Tr 3a MOT issues are: Oil leak; Offside Rear rear brake recording little or no effort (3.7.B.5a); Battery Insecure.

The typical Triumph Tr 3a in our data has covered around 77,208 miles.

Compare the Triumph Tr 3a

See how the Triumph Tr 3a stacks up against other Triumph models on MOT reliability:

Tr 3a vs Toledo Tr 3a vs Unknown Tr 3a vs 2000 Tr 3a vs 1500

Check a specific Triumph Tr 3a

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