1983 Triumph T140 MOT Pass Rate
Pass rate for T140 models manufactured in 1983, based on 36 real MOT test results.
Data from official DVSA MOT testing records
1983 Triumph T140 MOT Analysis
The 1983 Triumph T140 has an MOT pass rate of 97.2% based on 36 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 29,895 miles on the odometer. With a 2.8% failure rate, the 1983 T140 is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1983 Triumph T140 is Motorcycle lighting and signalling, responsible for 5.6% of failures. Motorcycle lighting and signalling 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 range from £100–400. Motorcycle brakes is the second most common issue at 2.8%.
Top failures specific to 1983 models only. The overall T140 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 Lighting And Signalling | 5.6% | 2 |
| 2 | Motorcycle Brakes | 2.8% | 1 |
Failures per 10,000 Miles
avg. 29,895 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 lighting and signalling | 1.86 | 5.6% | 2 |
| Motorcycle brakes | 0.93 | 2.8% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1983 Triumph T140 has an MOT pass rate of 97.2% based on 36 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 29,895 miles on the odometer. With a 2.8% failure rate, the 1983 T140 is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1983 Triumph T140, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle lighting and signalling: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights. With relatively low average mileage of 29,895 miles, many of these vehicles are still in good mechanical condition.
Motorcycle lighting and signalling — 5.6% of failures
Motorcycle lighting and signalling issues account for 5.6% of MOT failures on 1983 Triumph T140 models. Motorcycle lighting and signalling 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.
Motorcycle brakes — 2.8% of failures
Motorcycle brakes issues account for 2.8% of MOT failures on 1983 Triumph T140 models. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.