At a Glance
The Triumph Tr8 has 0 identified common problems across 1 generation and suspension the most common problem category. Based on 1K MOT tests from DVSA data.
Problems are patterns in the DVSA data that occur significantly more often on a specific model than the UK average — confirmed at 99% statistical confidence. Read our DVSA MOT data methodology →
Below: generation-by-generation comparison of Triumph Tr8 common problems, MOT failure types, and pass-rate data drawn from DVSA records. Click any generation to see fuel- and engine-specific fault patterns, mileage-banded repair guidance, and the most common MOT failures testers record.
MOT Tests & Failures by Generation
Triumph Tr8 generations by MOT tests, failures, and identified problems from DVSA data
Hover over each bar for a full breakdown. Tap any bar to view that generation's problems.
Showing total MOT tests, failures, and known problems per make. Hover over each bar for a full breakdown.
Tell Us About Your Problem
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Tell Us About Your Problem
Help other Triumph Tr8 owners — report a problem and we'll add it to the database
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Browse Triumph Tr8 Generations
Select a generation to see its specific problems, MOT failures and advisories
Most Common Triumph Tr8 MOT Failures
Every reason Triumph Tr8 vehicles fail their MOT, ranked by frequency. Select an individual year to see only that year’s failures, or stay on ‘All time’ for the combined picture across our 20 years of DVSA data. Scroll inside the table for the full list.
| # | Failure | % of failures |
|---|---|---|
| 1 | Brake performance below minimum | 11.42% |
| 2 | Exhaust emissions above threshold (non-catalyst) | 6.49% |
| 3 | Windscreen washer not working | 6.38% |
| 4 | Stop lamp not working | 4.70% |
| 5 | Headlamp aim defect | 4.59% |
| 6 | Indicator fault | 4.26% |
| 7 | Exhaust system fault | 3.92% |
| 8 | Track rod end worn | 3.70% |
| 9 | Spark ignition emissions above threshold | 3.25% |
| 10 | Parking brake performance below minimum | 2.80% |
| 11 | Suspension mounting corroded | 2.69% |
| 12 | Brake hydraulic component worn | 2.58% |
| 13 | Number plate lamp not working | 2.46% |
| 14 | Suspension joint or bush worn | 2.46% |
| 15 | Fog lamp not working | 2.35% |
| 16 | Rear lamp not working | 2.35% |
| 17 | Wiper blades deteriorated | 2.24% |
| 18 | Steering rack fault | 2.02% |
| 19 | Tyre condition | 1.90% |
| 20 | Headlamp fault | 1.79% |
| 21 | Horn not working | 1.79% |
| 22 | Dashboard warning lamp fault | 1.46% |
| 23 | Electrical switch fault | 1.23% |
| 24 | Front suspension fault | 1.23% |
| 25 | Position lamp not working | 1.23% |
| 26 | Wheel bearing worn | 1.23% |
| 27 | Ball joint dust cover split | 1.23% |
| 28 | Front suspension joint worn | 1.12% |
| 29 | Front lamp not working | 1.01% |
| 30 | Rear fog lamp not working | 1.01% |
| 31 | Steering column fault | 0.90% |
| 32 | Battery loose or leaking | 0.78% |
| 33 | Shock absorber worn or leaking | 0.78% |
| 34 | Body corrosion or damage | 0.67% |
| 35 | Tyre tread depth below limit | 0.67% |
| 36 | Steering coupling worn | 0.56% |
| 37 | Fuel hose damaged or leaking | 0.45% |
| 38 | Fuel pipe corroded or damaged | 0.45% |
| 39 | Spring mounting corroded | 0.45% |
| 40 | Steering wheel damaged or insecure | 0.45% |
| 41 | Suspension arm worn or corroded | 0.45% |
| 42 | MacPherson strut worn | 0.45% |
| 43 | Brake pads or linings worn | 0.34% |
| 44 | Coil spring broken or corroded | 0.34% |
| 45 | Rigid brake pipe corroded or damaged | 0.34% |
| 46 | Seat belt condition | 0.34% |
| 47 | Bonnet catch or hinge fault | 0.22% |
| 48 | Brake disc or drum worn | 0.22% |
| 49 | Brake fluid leak | 0.22% |
| 50 | Driver seat fault | 0.22% |
| 51 | Flexible brake hose damaged | 0.22% |
| 52 | Handbrake cable fault | 0.22% |
| 53 | Mirror damaged or missing | 0.22% |
| 54 | Subframe mounting corroded | 0.22% |
| 55 | Trailing arm worn or corroded | 0.22% |
| 56 | Universal joint worn | 0.22% |
| 57 | Brake caliper fault | 0.11% |
| 58 | Brake pedal fault | 0.11% |
| 59 | Brake wheel cylinder fault | 0.11% |
| 60 | Bumper damaged or insecure | 0.11% |
| 61 | Compression ignition emissions above threshold | 0.11% |
| 62 | Engine oil leak | 0.11% |
| 63 | Exhaust leak | 0.11% |
| 64 | Front passenger door fault | 0.11% |
| 65 | Fuel cap damaged or missing | 0.11% |
| 66 | Parking brake condition | 0.11% |
| 67 | Power steering pump fault | 0.11% |
| 68 | Rear fog lamp warning light fault | 0.11% |
| 69 | Rear suspension fault | 0.11% |
| 70 | Speedometer fault | 0.11% |
| 71 | Steering arm worn | 0.11% |
| 72 | Steering drive system fault | 0.11% |
| 73 | Steering operation fault | 0.11% |
| 74 | Torsion bar worn or corroded | 0.11% |
| 75 | Tyre size or type not matched | 0.11% |
| 76 | Vehicle floor corroded | 0.11% |
| 77 | Window damaged or won't operate | 0.11% |
| 78 | King pin or swivel pin worn | 0.11% |
Showing all 78 reasons — scroll inside the table for the full list.
Triumph Tr8 MOT Failures by Category
Total MOT failure occurrences for the Triumph Tr8, grouped by category. Same data as the failures table above — just sliced by category instead of fault title. Hover a slice for the top failures in each category.
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Frequently Asked Questions
What are the most common Triumph Tr8 problems?
Based on analysis of 1K Triumph Tr8 MOT tests from DVSA data, we have 0 identified common problems across 1 generation. Suspension is the most common problem category.
Which Triumph Tr8 generation has the most problems?
We haven't identified significant problem patterns specific to any single generation of the Triumph Tr8 yet — either this is a well-engineered model across all its generations, or the sample size per generation is still small. Check individual generation pages for MOT failure and advisory breakdowns.
How is this data calculated?
We analyse anonymised DVSA MOT test records under the Open Government Licence. An issue is classified as a "Common Problem" when it occurs significantly more often on a specific model than the UK average, confirmed at 99% statistical confidence. Read the full methodology page for details.
Can I report a problem with my Triumph Tr8?
Yes — use the "Tell Us About Your Problem" form on this page. Your report helps other Triumph Tr8 owners spot problems early. All submissions are reviewed before being added to the public database.
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