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MOT reliability

Triumph Stag coupe

5 vehicles · 54 completed MOT tests analysed
83%
MOT pass rate

Based on 5 Triumph Stag coupe vehicles and 54 completed MOT tests, the Triumph Stag coupe has an overall 83% pass rate, with an average recorded mileage of 80,648 miles.

5
Vehicles
54
MOT tests
367
Avg miles / year
1
Faults per test
0%
Dangerous-fault share

Triumph Stag coupe problem areas

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

  • Other117%
  • Tyres, wheels & suspension12%
  • Emissions & nuisance8%
  • Steering8%
  • Brakes2%
  • Lamps & electrical2%
  • Visibility2%

Fuel types: Petrol (5)

Most common Triumph Stag coupe MOT faults

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

  1. Offside Front wheel bearing has slight play (2.5.A.3c) (4 times)
  2. Offside Seat belt anchorage prescribed area is corroded but not considered excessive (5.2.6) (4 times)
  3. Parking brake: efficiency below requirements (3.7.B.7) (3 times)
  4. Offside Steering rack gaiter deteriorated (2.2.D.2d) (2 times)
  5. front and rear number plates not off the same format (2 times)
  6. Offside Rear wheel bearing has slight play (2.6.2) (2 times)
  7. both rear arches showing signs of repair (2 times)
  8. chassis weld repaired (2 times)
  9. front panel slightly repaired (2 times)
  10. rear drive shaft inner joints slightly worn (2 times)
  11. chassis has been weld repaired (2 times)
  12. exhaust slightly damaged (2 times)
  13. rear arches and front panel show signs of repair (2 times)
  14. All passenger seats missing (2 times)
  15. Oil leak, but not excessive (8.4.1 (a) (i)) (2 times)

Triumph Stag coupe pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
1976 1 4 100% 83,777
1975 1 1 100% 52,744
1972 3 49 82% 88,907

Triumph Stag coupe reliability FAQ

Across 5 Triumph Stag coupe vehicles in our MOT data, 83% pass the MOT (a 17% failure rate), with about 1 faults or advisories recorded per test.

The most frequently recorded Triumph Stag coupe MOT issues are: Offside Front wheel bearing has slight play (2.5.A.3c); Offside Seat belt anchorage prescribed area is corroded but not considered excessive (5.2.6); Parking brake: efficiency below requirements (3.7.B.7).

The typical Triumph Stag coupe in our data has covered around 80,648 miles.

Compare the Triumph Stag coupe

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

Stag coupe vs Toledo Stag coupe vs Unknown Stag coupe vs 2000 Stag coupe vs 1500

Check a specific Triumph Stag coupe

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