DVSA Statistics
1974 Triumph Stag
MOT Pass Rate & Pre-MOT Checklist
Used 1974 Triumph Stags usually pass their MOT, but around 1 in 9 still fail, most often for a suspension pin, bush or joint excessively worn, fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users and a direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning. Based on 180 MOT tests from DVSA data, this page shows how this model performs and what to check before your test.
Pass Rate
Based on 180 DVSA anonymised MOT tests · About this data
Pass Rate
88.9%
Higher than average
Top Failure Reasons
Common MOT failures for this model
Quick DIY Fix
Indicator bulbs are quick and cheap to replace.
Based on DVSA statistics from 180 recorded tests.
Pre-MOT Checklist for 1974 Triumph Stag
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 indicators flash at the correct rate - check front, rear, and side repeaters
Lighting – Common fail on this model
- 3
Check exhaust for leaks, holes, or excessive corrosion - listen for blowing
Exhaust – Common fail on this model
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Frequently Asked Questions
Is a 1974 Triumph Stag likely to fail its MOT?
Based on DVSA statistics, the 1974 Triumph Stag has a 88.9% 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?
The most common MOT failure reasons for a 1974 Triumph Stag are: a suspension pin, bush or joint excessively worn, fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, a direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning. 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 fails its MOT?
To improve your chances of passing, check the items that commonly fail on this model: a suspension pin, bush or joint excessively worn, fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, a direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning. Use our pre-MOT checklist above to identify potential issues before your test. Many common failures are easy DIY fixes.
How many 1974 Triumph Stags fail their MOT?
Around 11% of 1974 Triumph Stags fail their MOT test, meaning roughly 1 in 9 don't pass first time. The most common reasons are a suspension pin, bush or joint excessively worn and fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users. Pre-checking these items can significantly improve your chances.
What should I check before my 1974 Triumph Stag MOT?
Before your 1974 Triumph Stag MOT, check these commonly-failed items: a suspension pin, bush or joint excessively worn, fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, a direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning. 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 reliable for MOT?
With a 88.9% MOT pass rate, the 1974 Triumph Stag performs above average compared to typical vehicles. This suggests good overall condition for a vehicle of this age.