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1978 Austin Allegro Spec Le MOT Pass Rate

Pass rate for Allegro Spec Le models manufactured in 1978, based on 39 real MOT test results.

51.3%
Pass Rate
48.7%
Fail Rate
39
Total Tests
60,240
Avg Mileage

Data from official DVSA MOT testing records

1978 Austin Allegro Spec Le MOT Analysis

The 1978 Austin Allegro Spec Le has an MOT pass rate of 51.3% based on 39 tests — below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 60,240 miles on the odometer. With a 48.7% failure rate, the 1978 Allegro Spec Le is rated as "Poor" for MOT reliability.

The leading cause of MOT failure for the 1978 Austin Allegro Spec Le is Brakes, responsible for 7.7% 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.

⚠ Based on limited data (39 tests)

Top failures specific to 1978 models only. The overall Allegro Spec Le page may show different rankings.

What Fails Most

Brakes 7.7%

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
1Brakes7.7%3

Failures per 10,000 Miles

avg. 60,240 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.

Brakes1.28% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Brakes1.287.7%3

Mileage Statistics

60,240
Mean
81,982
Median
73,210
25th Percentile
90,708
75th Percentile
8.08% failures per 10K miles

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

About This Data

The 1978 Austin Allegro Spec Le has an MOT pass rate of 51.3% based on 39 tests — below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 60,240 miles on the odometer. With a 48.7% failure rate, the 1978 Allegro Spec Le is rated as "Poor" for MOT reliability.

If you own or are considering buying a 1978 Austin Allegro Spec Le, be prepared for above-average maintenance costs. 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 60,240 average miles, these vehicles are in the mid-range where component wear starts to become a factor.

Brakes — 7.7% of failures

Brakes issues account for 7.7% of MOT failures on 1978 Austin Allegro Spec Le 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).

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

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