1975 MG Mgbgt MOT Pass Rate
Pass rate for Mgbgt models manufactured in 1975, based on 121 real MOT test results.
Data from official DVSA MOT testing records
1975 MG Mgbgt MOT Analysis
The 1975 MG Mgbgt has an MOT pass rate of 66.1% based on 121 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 50,377 miles on the odometer. With a 33.9% failure rate, the 1975 Mgbgt is rated as "Good" for MOT reliability.
The leading cause of MOT failure for the 1975 MG Mgbgt is Brakes, responsible for 0.8% 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. Identification of the vehicle is the second most common issue at 0.8%. Lamps, reflectors and electrical equipment follows at 0.8%.
Top failures specific to 1975 models only. The overall Mgbgt 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 | 0.8% | 1 |
| 2 | Identification Of The Vehicle | 0.8% | 1 |
| 3 | Lamps, Reflectors And Electrical Equipment | 0.8% | 1 |
| 4 | Visibility | 0.8% | 1 |
Failures per 10,000 Miles
avg. 50,377 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 | 0.16 | 0.8% | 1 |
| Identification of the vehicle | 0.16 | 0.8% | 1 |
| Lamps & Electrical | 0.16 | 0.8% | 1 |
| Visibility | 0.16 | 0.8% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1975 MG Mgbgt has an MOT pass rate of 66.1% based on 121 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 50,377 miles on the odometer. With a 33.9% failure rate, the 1975 Mgbgt is rated as "Good" for MOT reliability.
If you own or are considering buying a 1975 MG Mgbgt, you can expect reliable MOT performance overall. 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 50,377 average miles, these vehicles are in the mid-range where component wear starts to become a factor.
Brakes — 0.8% of failures
Brakes issues account for 0.8% of MOT failures on 1975 MG Mgbgt 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).
Identification of the vehicle — 0.8% of failures
Identification of the vehicle issues account for 0.8% of MOT failures on 1975 MG Mgbgt models. Identification failures relate to the Vehicle Identification Number (VIN) and registration plate. The VIN must be permanently displayed and legible, and the registration plate must meet British Standard formatting. Typical repair costs: £10–50. Pre-MOT check: Ensure the VIN plate is visible and legible (usually in the windscreen or under the bonnet). Check that number plates are clean, undamaged, and use the correct font and spacing.
Lamps, reflectors and electrical equipment — 0.8% of failures
Lamps, reflectors and electrical equipment issues account for 0.8% of MOT failures on 1975 MG Mgbgt models. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.