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1974 MG Mgbgt MOT Pass Rate

Pass rate for Mgbgt models manufactured in 1974, based on 80 real MOT test results.

67.5%
Pass Rate
32.5%
Fail Rate
80
Total Tests
50,626
Avg Mileage

Data from official DVSA MOT testing records

1974 MG Mgbgt MOT Analysis

The 1974 MG Mgbgt has an MOT pass rate of 67.5% based on 80 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 50,626 miles on the odometer. With a 32.5% failure rate, the 1974 Mgbgt is rated as "Good" for MOT reliability.

The leading cause of MOT failure for the 1974 MG Mgbgt is Lamps, reflectors and electrical equipment, responsible for 1.3% of failures. 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 range from £5–50. Suspension is the second most common issue at 1.3%.

⚠ Based on limited data (80 tests)

Top failures specific to 1974 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
MOT failure categories ranked by failure rate
RankFailure CategoryRate (%)Count
1Lamps, Reflectors And Electrical Equipment1.3%1
2Suspension1.3%1

Failures per 10,000 Miles

avg. 50,626 mi

For 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.

Lamps & Electrical0.25% per 10K miSuspension0.25% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Lamps & Electrical0.251.3%1
Suspension0.251.3%1

Mileage Statistics

50,626
Mean
41,394
Median
25,531
25th Percentile
53,516
75th Percentile
6.42% failures per 10K miles

Mileage-adjusted failure rate — accounts for how much this model year is typically driven.

About This Data

The 1974 MG Mgbgt has an MOT pass rate of 67.5% based on 80 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 50,626 miles on the odometer. With a 32.5% failure rate, the 1974 Mgbgt is rated as "Good" for MOT reliability.

If you own or are considering buying a 1974 MG Mgbgt, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to lamps, reflectors and electrical equipment: 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. At 50,626 average miles, these vehicles are in the mid-range where component wear starts to become a factor.

Lamps, reflectors and electrical equipment — 1.3% of failures

Lamps, reflectors and electrical equipment issues account for 1.3% of MOT failures on 1974 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.

Suspension — 1.3% of failures

Suspension issues account for 1.3% of MOT failures on 1974 MG Mgbgt 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.

Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.

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