1977 Triumph Spitfire MOT Pass Rate
Pass rate for Spitfire models manufactured in 1977, based on 2,985 real MOT test results.
Data from official DVSA MOT testing records
This page shows all Spitfire cars tested in 1977. Want to see how cars built in 1977 hold up over time?
View 1977 Triumph Spitfire vintage page → (66.7% current pass rate)1977 Triumph Spitfire MOT Analysis
The 1977 Triumph Spitfire has an MOT pass rate of 61.5% based on 2,985 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 55,181 miles on the odometer. With a 38.5% failure rate, the 1977 Spitfire is rated as "Average" for MOT reliability.
The leading cause of MOT failure for the 1977 Triumph Spitfire is Brakes, responsible for 0.3% of failures. 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 range from £150–400. Steering is the second most common issue at 0.2%. Noise, emissions and leaks follows at 0.1%.
Top failures specific to 1977 models only. The overall Spitfire 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 | Brakes | 0.3% | 9 |
| 2 | Steering | 0.2% | 5 |
| 3 | Noise, Emissions And Leaks | 0.1% | 4 |
| 4 | Suspension | 0.1% | 3 |
| 5 | Body, Chassis, Structure | 0.1% | 2 |
| 6 | Lamps, Reflectors And Electrical Equipment | 0.1% | 2 |
| 7 | Visibility | 0.1% | 2 |
Failures per 10,000 Miles
avg. 55,181 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 |
|---|---|---|---|
| Brakes | 0.05 | 0.3% | 9 |
| Steering | 0.03 | 0.2% | 5 |
| Noise, emissions and leaks | 0.02 | 0.1% | 4 |
| Suspension | 0.02 | 0.1% | 3 |
| Body & Structure | 0.01 | 0.1% | 2 |
| Lamps & Electrical | 0.01 | 0.1% | 2 |
| Visibility | 0.01 | 0.1% | 2 |
| Seat Belts | 0.01 | 0.0% | 1 |
| Tyres | 0.01 | 0.0% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1977 Triumph Spitfire has an MOT pass rate of 61.5% based on 2,985 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 55,181 miles on the odometer. With a 38.5% failure rate, the 1977 Spitfire is rated as "Average" for MOT reliability.
If you own or are considering buying a 1977 Triumph Spitfire, budget for potential repairs before each MOT. Before your MOT, pay particular attention to brakes: 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). At 55,181 average miles, these vehicles are in the mid-range where component wear starts to become a factor.
Brakes — 0.3% of failures
Brakes issues account for 0.3% of MOT failures on 1977 Triumph Spitfire 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).
Steering — 0.2% of failures
Steering issues account for 0.2% of MOT failures on 1977 Triumph Spitfire models. Steering failures include excessive play in the steering wheel, leaking power steering fluid, worn track rod ends, and damaged steering rack. These affect vehicle control and are closely related to suspension wear. Typical repair costs: £150–600. Pre-MOT check: Check for excessive steering wheel play (more than a few inches of free movement). Listen for whining from the power steering pump. Look for fluid leaks under the car near the front wheels.
Noise, emissions and leaks — 0.1% of failures
Noise, emissions and leaks issues account for 0.1% of MOT failures on 1977 Triumph Spitfire 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.