1979 Vauxhall Chevette MOT Pass Rate
Pass rate for Chevette models manufactured in 1979, based on 406 real MOT test results.
Data from official DVSA MOT testing records
This page shows all Chevette cars tested in 1979. Want to see how cars built in 1979 hold up over time?
View 1979 Vauxhall Chevette vintage page → (82.9% current pass rate)1979 Vauxhall Chevette MOT Analysis
The 1979 Vauxhall Chevette has an MOT pass rate of 71.9% based on 406 tests — above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 47,577 miles on the odometer. With a 28.1% failure rate, the 1979 Chevette is rated as "Very Good" for MOT reliability.
The leading cause of MOT failure for the 1979 Vauxhall Chevette is Noise, emissions and leaks, responsible for 0.2% of failures. 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 range from £100–1,000+. Visibility is the second most common issue at 0.2%.
Top failures specific to 1979 models only. The overall Chevette 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 | Noise, Emissions And Leaks | 0.2% | 1 |
| 2 | Visibility | 0.2% | 1 |
Failures per 10,000 Miles
avg. 47,577 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 |
|---|---|---|---|
| Noise, emissions and leaks | 0.05 | 0.2% | 1 |
| Visibility | 0.05 | 0.2% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1979 Vauxhall Chevette has an MOT pass rate of 71.9% based on 406 tests — above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 47,577 miles on the odometer. With a 28.1% failure rate, the 1979 Chevette is rated as "Very Good" for MOT reliability.
If you own or are considering buying a 1979 Vauxhall Chevette, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to noise, emissions and leaks: 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. With relatively low average mileage of 47,577 miles, many of these vehicles are still in good mechanical condition.
Noise, emissions and leaks — 0.2% of failures
Noise, emissions and leaks issues account for 0.2% of MOT failures on 1979 Vauxhall Chevette 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.
Visibility — 0.2% of failures
Visibility issues account for 0.2% of MOT failures on 1979 Vauxhall Chevette 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.