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MOT reliability

Triumph Stag sports

5 vehicles · 48 completed MOT tests analysed
77%
MOT pass rate

Based on 5 Triumph Stag sports vehicles and 48 completed MOT tests, the Triumph Stag sports has an overall 77% pass rate, with an average recorded mileage of 63,297 miles.

5
Vehicles
48
MOT tests
582
Avg miles / year
1.4
Faults per test
0%
Dangerous-fault share

Triumph Stag sports problem areas

Where faults occur most across all Triumph Stag sports MOT tests:

  • Other135%
  • Steering14%
  • Emissions & nuisance7%
  • Brakes3%

Triumph Stag sports pass rate by age

Age (years)TestsPass rate

Fuel types: Petrol (5)

Most common Triumph Stag sports MOT faults

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

  1. Oil leak (8 times)
  2. Windscreen washer provides insufficient washer liquid (8.2.3) (3 times)
  3. Nearside Rear wheel bearing has slight play (2.6.2) (3 times)
  4. Nearside Front Brake hose slightly deteriorated (3.6.B.4d) (3 times)
  5. Offside Front Brake hose slightly deteriorated (3.6.B.4d) (3 times)
  6. both rear tyres very perished (2 times)
  7. oil/fluid leak from engine. (2 times)
  8. Nearside Rear Lower Shock absorber has a slightly worn bush (2.7.4) (2 times)
  9. Nearside Rear rear parking (secondary) brake grabbing slightly (3.7.B.6b) (2 times)
  10. Offside Rear Lower Shock absorber has a slightly worn bush (2.7.4) (2 times)
  11. Parking brake: parking brake efficiency only just met. It would appear that the braking system requires adjustment or repair. (3.7.B.7) (2 times)
  12. all four steering rack rubber mounts slightly deterioated (2 times)
  13. both front shock absorber protective boots split (2 times)
  14. both rear number plate lights slightly dull (2 times)
  15. general oil leaks lower engine area (2 times)

Triumph Stag sports pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
1978 1 3 100% 12,202
1977 3 33 76% 67,100
1972 1 12 75% 102,986

Triumph Stag sports reliability FAQ

Across 5 Triumph Stag sports vehicles in our MOT data, 77% pass the MOT (a 23% failure rate), with about 1.4 faults or advisories recorded per test.

The most frequently recorded Triumph Stag sports MOT issues are: Oil leak; Windscreen washer provides insufficient washer liquid (8.2.3); Nearside Rear wheel bearing has slight play (2.6.2).

The typical Triumph Stag sports in our data has covered around 63,297 miles.

Compare the Triumph Stag sports

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

Stag sports vs Toledo Stag sports vs Unknown Stag sports vs 2000 Stag sports vs 1500

Check a specific Triumph Stag sports

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