2003 Triumph Thunderbird MOT Pass Rate
Pass rate for Thunderbird models manufactured in 2003, based on 2,644 real MOT test results.
Data from official DVSA MOT testing records
This page shows all Thunderbird cars tested in 2003. Want to see how cars built in 2003 hold up over time?
View 2003 Triumph Thunderbird vintage page → (93.3% current pass rate)2003 Triumph Thunderbird MOT Analysis
The 2003 Triumph Thunderbird has an MOT pass rate of 89.4% based on 2,644 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 15,678 miles on the odometer. With a 10.6% failure rate, the 2003 Thunderbird is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 2003 Triumph Thunderbird is Motorcycle lamps and reflectors, responsible for 0.1% of failures. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs range from £5–50. Motorcycle tyres is the second most common issue at 0.1%. Motorcycle audible warning (Horn) follows at 0.1%.
Top failures specific to 2003 models only. The overall Thunderbird page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Motorcycle Lamps And Reflectors | 0.1% | 3 |
| 2 | Motorcycle Tyres | 0.1% | 3 |
| 3 | Motorcycle Audible Warning (Horn) | 0.1% | 2 |
| 4 | Motorcycle Brakes | 0.1% | 2 |
| 5 | Motorcycle Structure And Attachments | 0.1% | 2 |
| 6 | Motorcycle Suspension | 0.1% | 2 |
Failures per 10,000 Miles
avg. 15,678 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Motorcycle lamps and reflectors | 0.07 | 0.1% | 3 |
| Motorcycle tyres | 0.07 | 0.1% | 3 |
| Motorcycle audible warning (Horn) | 0.05 | 0.1% | 2 |
| Motorcycle brakes | 0.05 | 0.1% | 2 |
| Motorcycle structure and attachments | 0.05 | 0.1% | 2 |
| Motorcycle suspension | 0.05 | 0.1% | 2 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2003 Triumph Thunderbird has an MOT pass rate of 89.4% based on 2,644 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 15,678 miles on the odometer. With a 10.6% failure rate, the 2003 Thunderbird is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 2003 Triumph Thunderbird, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle lamps and reflectors: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test. With relatively low average mileage of 15,678 miles, many of these vehicles are still in good mechanical condition.
Motorcycle lamps and reflectors — 0.1% of failures
Motorcycle lamps and reflectors issues account for 0.1% of MOT failures on 2003 Triumph Thunderbird models. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Motorcycle tyres — 0.1% of failures
Motorcycle tyres issues account for 0.1% of MOT failures on 2003 Triumph Thunderbird models. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Motorcycle audible warning (Horn) — 0.1% of failures
Motorcycle audible warning (Horn) issues account for 0.1% of MOT failures on 2003 Triumph Thunderbird models. Motorcycle audible warning (Horn) issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs: £100–400. Pre-MOT check: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.