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1991 Vauxhall Astramax MOT Pass Rate

Pass rate for Astramax models manufactured in 1991, based on 39 real MOT test results.

51.3%
Pass Rate
48.7%
Fail Rate
39
Total Tests
33,622
Avg Mileage

Data from official DVSA MOT testing records

1991 Vauxhall Astramax MOT Analysis

The 1991 Vauxhall Astramax 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 33,622 miles on the odometer. With a 48.7% failure rate, the 1991 Astramax is rated as "Poor" for MOT reliability.

The leading cause of MOT failure for the 1991 Vauxhall Astramax is Exhaust, Fuel and Emissions, responsible for 2.6% 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+.

⚠ Based on limited data (39 tests)

Top failures specific to 1991 models only. The overall Astramax 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
1Exhaust, Fuel And Emissions2.6%1

Failures per 10,000 Miles

avg. 33,622 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.

Emissions & Exhaust0.76% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Emissions & Exhaust0.762.6%1

Mileage Statistics

33,622
Mean
17,565
Median
14,841
25th Percentile
18,014
75th Percentile
14.48% failures per 10K miles

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

About This Data

The 1991 Vauxhall Astramax 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 33,622 miles on the odometer. With a 48.7% failure rate, the 1991 Astramax is rated as "Poor" for MOT reliability.

If you own or are considering buying a 1991 Vauxhall Astramax, be prepared for above-average maintenance costs. Before your MOT, pay particular attention to exhaust, fuel and emissions: 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. With relatively low average mileage of 33,622 miles, many of these vehicles are still in good mechanical condition.

Exhaust, Fuel and Emissions — 2.6% of failures

Exhaust, Fuel and Emissions issues account for 2.6% of MOT failures on 1991 Vauxhall Astramax 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.

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

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