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1983 Austin Unclassified MOT Pass Rate

Pass rate for Unclassified models manufactured in 1983, based on 30 real MOT test results.

83.3%
Pass Rate
16.7%
Fail Rate
30
Total Tests
38,179
Avg Mileage

Data from official DVSA MOT testing records

1983 Austin Unclassified MOT Analysis

The 1983 Austin Unclassified has an MOT pass rate of 83.3% based on 30 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 38,179 miles on the odometer. With a 16.7% failure rate, the 1983 Unclassified is rated as "Excellent" for MOT reliability.

The leading cause of MOT failure for the 1983 Austin Unclassified is Body, chassis, structure, responsible for 10.0% 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 10.0%. Visibility follows at 6.7%.

⚠ Based on limited data (30 tests)

Top failures specific to 1983 models only. The overall Unclassified 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, Structure10.0%3
2Noise, Emissions And Leaks10.0%3
3Visibility6.7%2

Failures per 10,000 Miles

avg. 38,179 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 & Structure2.62% per 10K miNoise, emissions and leaks2.62% per 10K miVisibility1.75% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Body & Structure2.6210.0%3
Noise, emissions and leaks2.6210.0%3
Visibility1.756.7%2

Mileage Statistics

38,179
Mean
25,745
Median
15,898
25th Percentile
61,303
75th Percentile
4.37% failures per 10K miles

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

About This Data

The 1983 Austin Unclassified has an MOT pass rate of 83.3% based on 30 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 38,179 miles on the odometer. With a 16.7% failure rate, the 1983 Unclassified is rated as "Excellent" for MOT reliability.

If you own or are considering buying a 1983 Austin Unclassified, you can expect reliable MOT performance overall. 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 38,179 miles, many of these vehicles are still in good mechanical condition.

Body, chassis, structure — 10.0% of failures

Body, chassis, structure issues account for 10.0% of MOT failures on 1983 Austin Unclassified 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 — 10.0% of failures

Noise, emissions and leaks issues account for 10.0% of MOT failures on 1983 Austin Unclassified 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.

Visibility — 6.7% of failures

Visibility issues account for 6.7% of MOT failures on 1983 Austin Unclassified models. Visibility failures relate to the windscreen, wipers, washers, mirrors, and view-obstructing damage. Cracks in the windscreen swept area, ineffective wipers, or empty washer bottles are common causes. Typical repair costs: £10–300. Pre-MOT check: Check the windscreen for chips and cracks — damage larger than 10mm in the driver's swept area or 40mm elsewhere will fail. Test washers and wipers. Ensure both door mirrors are intact and adjustable.

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

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