DVSA Statistics
2004 Triumph Bonneville T100
MOT Pass Rate & Pre-MOT Checklist
Used 2004 Triumph Bonneville T100s usually pass their MOT, but around 3% still fail, most often for a transmission belt, chain, sprocket or pulley excessively loose or worn, exhaust noise levels in excess of those permitted and the aim of a headlamp is not within limits laid down in the requirements. Based on 76 MOT tests from DVSA data, this page shows how this model performs and what to check before your test.
Pass Rate
Based on 76 DVSA anonymised MOT tests · About this data
Pass Rate
97.4%
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 76 recorded tests.
Pre-MOT Checklist for 2004 Triumph Bonneville T100
Based on common failure points for this model, check these items before your MOT:
- 1
Check exhaust for leaks, holes, or excessive corrosion - listen for blowing
Exhaust – Common fail on this model
- 2
Test all headlights work and aim is correct - check for condensation inside
Lighting – 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 Bonneville T100.
Frequently Asked Questions
Is a 2004 Triumph Bonneville T100 likely to fail its MOT?
Based on DVSA statistics, the 2004 Triumph Bonneville T100 has a 97.4% 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 2004 Triumph Bonneville T100?
The most common MOT failure reasons for a 2004 Triumph Bonneville T100 are: a transmission belt, chain, sprocket or pulley excessively loose or worn, exhaust noise levels in excess of those permitted, 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 2004 Triumph Bonneville T100 fails its MOT?
To improve your chances of passing, check the items that commonly fail on this model: a transmission belt, chain, sprocket or pulley excessively loose or worn, exhaust noise levels in excess of those permitted, 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 2004 Triumph Bonneville T100s fail their MOT?
Around 3% of 2004 Triumph Bonneville T100s fail their MOT test. The most common reasons are a transmission belt, chain, sprocket or pulley excessively loose or worn and exhaust noise levels in excess of those permitted. Pre-checking these items can significantly improve your chances.
What should I check before my 2004 Triumph Bonneville T100 MOT?
Before your 2004 Triumph Bonneville T100 MOT, check these commonly-failed items: a transmission belt, chain, sprocket or pulley excessively loose or worn, exhaust noise levels in excess of those permitted, 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 2004 Triumph Bonneville T100 reliable for MOT?
With a 97.4% MOT pass rate, the 2004 Triumph Bonneville T100 performs above average compared to typical vehicles. This suggests good overall condition for a vehicle of this age.