1978 Triumph T140 V MOT Pass Rate
Pass rate for T140 V models manufactured in 1978, based on 32 real MOT test results.
Data from official DVSA MOT testing records
1978 Triumph T140 V MOT Analysis
The 1978 Triumph T140 V has an MOT pass rate of 93.8% based on 32 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 13,468 miles on the odometer. With a 6.2% failure rate, the 1978 T140 V is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1978 Triumph T140 V is Motorcycle reg plates and vin, responsible for 3.1% of failures. Motorcycle reg plates and vin 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 3.1%.
Top failures specific to 1978 models only. The overall T140 V 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 Reg Plates And Vin | 3.1% | 1 |
| 2 | Motorcycle Brakes | 3.1% | 1 |
Failures per 10,000 Miles
avg. 13,468 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 reg plates and vin | 2.32 | 3.1% | 1 |
| Motorcycle brakes | 2.32 | 3.1% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1978 Triumph T140 V has an MOT pass rate of 93.8% based on 32 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 13,468 miles on the odometer. With a 6.2% failure rate, the 1978 T140 V is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1978 Triumph T140 V, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle reg plates and vin: 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 13,468 miles, many of these vehicles are still in good mechanical condition.
Motorcycle reg plates and vin — 3.1% of failures
Motorcycle reg plates and vin issues account for 3.1% of MOT failures on 1978 Triumph T140 V models. Motorcycle reg plates and vin 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 — 3.1% of failures
Motorcycle brakes issues account for 3.1% of MOT failures on 1978 Triumph T140 V 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.