1975 MG Mgb.gt V8 MOT Pass Rate
Pass rate for Mgb.gt V8 models manufactured in 1975, based on 32 real MOT test results.
Data from official DVSA MOT testing records
1975 MG Mgb.gt V8 MOT Analysis
The 1975 MG Mgb.gt V8 has an MOT pass rate of 75.0% based on 32 tests — above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 30,364 miles on the odometer. With a 25.0% failure rate, the 1975 Mgb.gt V8 is rated as "Very Good" for MOT reliability.
The leading cause of MOT failure for the 1975 MG Mgb.gt V8 is Suspension, responsible for 15.6% of failures. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs range from £200–500. Tyres is the second most common issue at 6.3%. Seat Belts and Supplementary Restraint Systems follows at 3.1%.
Top failures specific to 1975 models only. The overall Mgb.gt V8 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 | Suspension | 15.6% | 5 |
| 2 | Tyres | 6.3% | 2 |
| 3 | Seat Belts And Supplementary Restraint Systems | 3.1% | 1 |
| 4 | Steering | 3.1% | 1 |
Failures per 10,000 Miles
avg. 30,364 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 |
|---|---|---|---|
| Suspension | 5.15 | 15.6% | 5 |
| Tyres | 2.06 | 6.3% | 2 |
| Seat Belts | 1.03 | 3.1% | 1 |
| Steering | 1.03 | 3.1% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1975 MG Mgb.gt V8 has an MOT pass rate of 75.0% based on 32 tests — above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 30,364 miles on the odometer. With a 25.0% failure rate, the 1975 Mgb.gt V8 is rated as "Very Good" for MOT reliability.
If you own or are considering buying a 1975 MG Mgb.gt V8, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to suspension: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks. With relatively low average mileage of 30,364 miles, many of these vehicles are still in good mechanical condition.
Suspension — 15.6% of failures
Suspension issues account for 15.6% of MOT failures on 1975 MG Mgb.gt V8 models. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.
Tyres — 6.3% of failures
Tyres issues account for 6.3% of MOT failures on 1975 MG Mgb.gt V8 models. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Seat Belts and Supplementary Restraint Systems — 3.1% of failures
Seat Belts and Supplementary Restraint Systems issues account for 3.1% of MOT failures on 1975 MG Mgb.gt V8 models. Seat belt failures include frayed or cut webbing, faulty retractors, buckles that don't latch properly, and missing or damaged anchorages. All fitted seat belts must be functional. Typical repair costs: £50–200 per belt. Pre-MOT check: Pull each seat belt fully out and check for fraying, cuts, or fading. Ensure each belt retracts smoothly and the buckle clicks securely. Check the pre-tensioner warning light on the dashboard.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.