1977 Alfa Romeo Spider MOT Pass Rate
Pass rate for Spider models manufactured in 1977, based on 360 real MOT test results.
Data from official DVSA MOT testing records
This page shows all Spider cars tested in 1977. Want to see how cars built in 1977 hold up over time?
View 1977 Alfa Romeo Spider vintage page → (57.9% current pass rate)1977 Alfa Romeo Spider MOT Analysis
The 1977 Alfa Romeo Spider has an MOT pass rate of 62.8% based on 360 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 57,102 miles on the odometer. With a 37.2% failure rate, the 1977 Spider is rated as "Average" for MOT reliability.
The leading cause of MOT failure for the 1977 Alfa Romeo Spider is Visibility, responsible for 0.6% 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 0.3%.
Top failures specific to 1977 models only. The overall Spider 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 | Visibility | 0.6% | 2 |
| 2 | Noise, Emissions And Leaks | 0.3% | 1 |
Failures per 10,000 Miles
avg. 57,102 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 |
|---|---|---|---|
| Visibility | 0.10 | 0.6% | 2 |
| Noise, emissions and leaks | 0.05 | 0.3% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1977 Alfa Romeo Spider has an MOT pass rate of 62.8% based on 360 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 57,102 miles on the odometer. With a 37.2% failure rate, the 1977 Spider is rated as "Average" for MOT reliability.
If you own or are considering buying a 1977 Alfa Romeo Spider, budget for potential repairs before each MOT. 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. At 57,102 average miles, these vehicles are in the mid-range where component wear starts to become a factor.
Visibility — 0.6% of failures
Visibility issues account for 0.6% of MOT failures on 1977 Alfa Romeo Spider 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 — 0.3% of failures
Noise, emissions and leaks issues account for 0.3% of MOT failures on 1977 Alfa Romeo Spider 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.