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1984 Austin Mini MOT Pass Rate

Pass rate for Mini models manufactured in 1984, based on 114 real MOT test results.

48.2%
Pass Rate
51.8%
Fail Rate
114
Total Tests
50,522
Avg Mileage

Data from official DVSA MOT testing records

1984 Austin Mini MOT Analysis

The 1984 Austin Mini has an MOT pass rate of 48.2% based on 114 tests — significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 50,522 miles on the odometer. With a 51.8% failure rate, the 1984 Mini is rated as "Very Poor" for MOT reliability.

The leading cause of MOT failure for the 1984 Austin Mini is Noise, emissions and leaks, responsible for 1.8% 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+. Suspension is the second most common issue at 1.8%. Seat belts and supplementary restraint systems follows at 0.9%.

Top failures specific to 1984 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
1Noise, Emissions And Leaks1.8%2
2Suspension1.8%2
3Seat Belts And Supplementary Restraint Systems0.9%1

Failures per 10,000 Miles

avg. 50,522 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.

Noise, emissions and leaks0.35% per 10K miSuspension0.35% per 10K miSeat Belts0.17% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Noise, emissions and leaks0.351.8%2
Suspension0.351.8%2
Seat Belts0.170.9%1

Mileage Statistics

50,522
Mean
48,487
Median
24,299
25th Percentile
78,555
75th Percentile
10.25% failures per 10K miles

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

About This Data

The 1984 Austin Mini has an MOT pass rate of 48.2% based on 114 tests — significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 50,522 miles on the odometer. With a 51.8% failure rate, the 1984 Mini is rated as "Very Poor" for MOT reliability.

If you own or are considering buying a 1984 Austin Mini, be prepared for above-average maintenance costs. 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. At 50,522 average miles, these vehicles are in the mid-range where component wear starts to become a factor.

Noise, emissions and leaks — 1.8% of failures

Noise, emissions and leaks issues account for 1.8% of MOT failures on 1984 Austin 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.

Suspension — 1.8% of failures

Suspension issues account for 1.8% of MOT failures on 1984 Austin Mini 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.

Seat belts and supplementary restraint systems — 0.9% of failures

Seat belts and supplementary restraint systems issues account for 0.9% of MOT failures on 1984 Austin Mini 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.

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