1975 MG Roadster MOT Pass Rate
Pass rate for Roadster models manufactured in 1975, based on 218 real MOT test results.
Data from official DVSA MOT testing records
1975 MG Roadster MOT Analysis
The 1975 MG Roadster has an MOT pass rate of 65.1% based on 218 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 31,506 miles on the odometer. With a 34.9% failure rate, the 1975 Roadster is rated as "Good" for MOT reliability.
The leading cause of MOT failure for the 1975 MG Roadster is Noise, emissions and leaks, responsible for 0.5% 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+. Body, chassis, structure is the second most common issue at 0.5%.
Top failures specific to 1975 models only. The overall Roadster 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 | 0.5% | 1 |
| 2 | Body, Chassis, Structure | 0.5% | 1 |
Failures per 10,000 Miles
avg. 31,506 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 | 0.15 | 0.5% | 1 |
| Body & Structure | 0.15 | 0.5% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1975 MG Roadster has an MOT pass rate of 65.1% based on 218 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 31,506 miles on the odometer. With a 34.9% failure rate, the 1975 Roadster is rated as "Good" for MOT reliability.
If you own or are considering buying a 1975 MG Roadster, 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 31,506 miles, many of these vehicles are still in good mechanical condition.
Noise, emissions and leaks — 0.5% of failures
Noise, emissions and leaks issues account for 0.5% of MOT failures on 1975 MG Roadster 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.
Body, chassis, structure — 0.5% of failures
Body, chassis, structure issues account for 0.5% of MOT failures on 1975 MG Roadster models. Body and structure failures include excessive corrosion, sharp edges, loose panels, and damage to the vehicle frame. Rust is the primary concern, especially on older vehicles or those exposed to road salt. Typical repair costs: £100–500+. Pre-MOT check: Inspect sills, wheel arches, door bottoms, and the chassis for rust. Surface rust is acceptable but structural corrosion or holes will fail. Check that all doors, bonnet, and boot close securely.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.