1965 Triumph Tr4a MOT Pass Rate
Pass rate for Tr4a models manufactured in 1965, based on 1,789 real MOT test results.
Data from official DVSA MOT testing records
This page shows all Tr4a cars tested in 1965. Want to see how cars built in 1965 hold up over time?
View 1965 Triumph Tr4a vintage page → (88.6% current pass rate)1965 Triumph Tr4a MOT Analysis
The 1965 Triumph Tr4a has an MOT pass rate of 80.5% based on 1,789 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 38,977 miles on the odometer. With a 19.5% failure rate, the 1965 Tr4a is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1965 Triumph Tr4a is Visibility, responsible for 0.2% of failures. Visibility failures relate to the windscreen, wipers, washers, mirrors, and view-obstructing damage. Cracks in the windscreen swept area, ineffective wipers, or empty washer bottles are common causes. Typical repair costs range from £10–300. Noise, emissions and leaks is the second most common issue at 0.1%. Brakes follows at 0.1%.
Top failures specific to 1965 models only. The overall Tr4a page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
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| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Visibility | 0.2% | 3 |
| 2 | Noise, Emissions And Leaks | 0.1% | 2 |
| 3 | Brakes | 0.1% | 2 |
| 4 | Road Wheels | 0.1% | 1 |
| 5 | Steering | 0.1% | 1 |
| 6 | Suspension | 0.1% | 1 |
| 7 | Body, Chassis, Structure | 0.1% | 1 |
| 8 | Lamps, Reflectors And Electrical Equipment | 0.1% | 1 |
Failures per 10,000 Miles
avg. 38,977 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.
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| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Visibility | 0.04 | 0.2% | 3 |
| Noise, emissions and leaks | 0.03 | 0.1% | 2 |
| Brakes | 0.03 | 0.1% | 2 |
| Wheels | 0.01 | 0.1% | 1 |
| Steering | 0.01 | 0.1% | 1 |
| Suspension | 0.01 | 0.1% | 1 |
| Body & Structure | 0.01 | 0.1% | 1 |
| Lamps & Electrical | 0.01 | 0.1% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1965 Triumph Tr4a has an MOT pass rate of 80.5% based on 1,789 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 38,977 miles on the odometer. With a 19.5% failure rate, the 1965 Tr4a is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1965 Triumph Tr4a, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to visibility: Check the windscreen for chips and cracks — damage larger than 10mm in the driver's swept area or 40mm elsewhere will fail. Test washers and wipers. Ensure both door mirrors are intact and adjustable. With relatively low average mileage of 38,977 miles, many of these vehicles are still in good mechanical condition.
Visibility — 0.2% of failures
Visibility issues account for 0.2% of MOT failures on 1965 Triumph Tr4a models. Visibility failures relate to the windscreen, wipers, washers, mirrors, and view-obstructing damage. Cracks in the windscreen swept area, ineffective wipers, or empty washer bottles are common causes. Typical repair costs: £10–300. Pre-MOT check: Check the windscreen for chips and cracks — damage larger than 10mm in the driver's swept area or 40mm elsewhere will fail. Test washers and wipers. Ensure both door mirrors are intact and adjustable.
Noise, emissions and leaks — 0.1% of failures
Noise, emissions and leaks issues account for 0.1% of MOT failures on 1965 Triumph Tr4a models. Emissions failures occur when exhaust gases exceed legal limits for carbon monoxide (CO), hydrocarbons (HC), or particulate matter (diesel). Common causes include faulty oxygen sensors, clogged catalytic converters, or DPF issues on diesel vehicles. Typical repair costs: £100–1,000+. Pre-MOT check: If the engine management light is on, get it diagnosed before the MOT. For diesel cars, ensure the DPF has completed a regeneration cycle. Regular servicing and using premium fuel before the test can help.
Brakes — 0.1% of failures
Brakes issues account for 0.1% of MOT failures on 1965 Triumph Tr4a 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.