DVSA Statistics
1974 Triumph Stag Auto
MOT Pass Rate & Pre-MOT Checklist
Used 1974 Triumph Stag Autos usually pass their MOT, but around 1 in 6 still fail, most often for a wheel bearing with excessive play, a suspension pin, bush or joint excessively worn and the aim of a headlamp is not within limits laid down in the requirements. Based on 52 MOT tests from DVSA data, this page shows how this model performs and what to check before your test.
Pass Rate
Based on 52 DVSA anonymised MOT tests · About this data
Pass Rate
84.6%
Higher than average
Top Failure Reasons
Common MOT failures for this model
Quick DIY Fix
Headlight bulbs are a common MOT fail. Easy DIY replacement.
Based on DVSA statistics from 52 recorded tests.
Pre-MOT Checklist for 1974 Triumph Stag Auto
Based on common failure points for this model, check these items before your MOT:
- 1
Listen for knocks or clunks when driving over bumps - bounce each corner
Suspension – Common fail on this model
- 2
Test all headlights work and aim is correct - check for condensation inside
Lighting – Common fail on this model
- 3
Test brakes for effectiveness, pull, and unusual noises when driving
Brakes – Common fail on this model
Do you own this car?
Check your specific vehicle for outstanding advisories or recalls. Get a personalized risk report for your exact Triumph Stag Auto.
Frequently Asked Questions
Is a 1974 Triumph Stag Auto likely to fail its MOT?
Based on DVSA statistics, the 1974 Triumph Stag Auto has a 84.6% MOT pass rate. This is above average, indicating good reliability for a vehicle of this age.
What are the most common MOT failures on a 1974 Triumph Stag Auto?
The most common MOT failure reasons for a 1974 Triumph Stag Auto are: a wheel bearing with excessive play, a suspension pin, bush or joint excessively worn, the aim of a headlamp is not within limits laid down in the requirements. Many of these can be checked and fixed before your test to improve your chances of passing.
How can I reduce the chance my 1974 Triumph Stag Auto fails its MOT?
To improve your chances of passing, check the items that commonly fail on this model: a wheel bearing with excessive play, a suspension pin, bush or joint excessively worn, the aim of a headlamp is not within limits laid down in the requirements. Use our pre-MOT checklist above to identify potential issues before your test. Many common failures are easy DIY fixes.
How many 1974 Triumph Stag Autos fail their MOT?
Around 15% of 1974 Triumph Stag Autos fail their MOT test, meaning roughly 1 in 7 don't pass first time. The most common reasons are a wheel bearing with excessive play and a suspension pin, bush or joint excessively worn. Pre-checking these items can significantly improve your chances.
What should I check before my 1974 Triumph Stag Auto MOT?
Before your 1974 Triumph Stag Auto MOT, check these commonly-failed items: a wheel bearing with excessive play, a suspension pin, bush or joint excessively worn, the aim of a headlamp is not within limits laid down in the requirements. Most are visual checks you can do at home – look for worn tyres, test all lights work, and check for obvious damage or leaks.
Is the 1974 Triumph Stag Auto reliable for MOT?
With a 84.6% MOT pass rate, the 1974 Triumph Stag Auto performs above average compared to typical vehicles. This suggests good overall condition for a vehicle of this age.