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1974 Morris Mini MOT Pass Rate

Pass rate for Mini models manufactured in 1974, based on 105 real MOT test results.

63.8%
Pass Rate
36.2%
Fail Rate
105
Total Tests
42,285
Avg Mileage

Data from official DVSA MOT testing records

1974 Morris Mini MOT Analysis

The 1974 Morris Mini has an MOT pass rate of 63.8% based on 105 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 42,285 miles on the odometer. With a 36.2% failure rate, the 1974 Mini is rated as "Average" for MOT reliability.

The leading cause of MOT failure for the 1974 Morris Mini is Body, chassis, structure, responsible for 1.0% of failures. 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 range from £100–500+. Noise, emissions and leaks is the second most common issue at 1.0%. Steering follows at 1.0%.

Top failures specific to 1974 models only. The overall Mini 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
1Body, Chassis, Structure1.0%1
2Noise, Emissions And Leaks1.0%1
3Steering1.0%1

Failures per 10,000 Miles

avg. 42,285 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.

Body & Structure0.23% per 10K miNoise, emissions and leaks0.23% per 10K miSteering0.23% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Body & Structure0.231.0%1
Noise, emissions and leaks0.231.0%1
Steering0.231.0%1

Mileage Statistics

42,285
Mean
42,942
Median
32,464
25th Percentile
60,641
75th Percentile
8.56% failures per 10K miles

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

About This Data

The 1974 Morris Mini has an MOT pass rate of 63.8% based on 105 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 42,285 miles on the odometer. With a 36.2% failure rate, the 1974 Mini is rated as "Average" for MOT reliability.

If you own or are considering buying a 1974 Morris Mini, budget for potential repairs before each MOT. Before your MOT, pay particular attention to body, chassis, structure: 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. With relatively low average mileage of 42,285 miles, many of these vehicles are still in good mechanical condition.

Body, chassis, structure — 1.0% of failures

Body, chassis, structure issues account for 1.0% of MOT failures on 1974 Morris Mini 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.

Noise, emissions and leaks — 1.0% of failures

Noise, emissions and leaks issues account for 1.0% of MOT failures on 1974 Morris Mini 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.

Steering — 1.0% of failures

Steering issues account for 1.0% of MOT failures on 1974 Morris Mini models. Steering failures include excessive play in the steering wheel, leaking power steering fluid, worn track rod ends, and damaged steering rack. These affect vehicle control and are closely related to suspension wear. Typical repair costs: £150–600. Pre-MOT check: Check for excessive steering wheel play (more than a few inches of free movement). Listen for whining from the power steering pump. Look for fluid leaks under the car near the front wheels.

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

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