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1999 Isuzu Trucks Unclassified MOT Pass Rate

Pass rate for Unclassified models manufactured in 1999, based on 38 real MOT test results.

42.1%
Pass Rate
57.9%
Fail Rate
38
Total Tests
154,583
Avg Mileage

Data from official DVSA MOT testing records

1999 Isuzu Trucks Unclassified MOT Analysis

The 1999 Isuzu Trucks Unclassified has an MOT pass rate of 42.1% based on 38 tests — significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 154,583 miles on the odometer. With a 57.9% failure rate, the 1999 Unclassified is rated as "Very Poor" for MOT reliability.

The leading cause of MOT failure for the 1999 Isuzu Trucks Unclassified is Body, chassis, structure, responsible for 10.5% 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+. Brakes is the second most common issue at 5.3%. Steering follows at 5.3%.

⚠ Based on limited data (38 tests)

Top failures specific to 1999 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, Structure10.5%4
2Brakes5.3%2
3Steering5.3%2
4Suspension5.3%2
5Visibility2.6%1

Failures per 10,000 Miles

avg. 154,583 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 & Structure0.68% per 10K miBrakes0.34% per 10K miSteering0.34% per 10K miSuspension0.34% per 10K miVisibility0.17% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Body & Structure0.6810.5%4
Brakes0.345.3%2
Steering0.345.3%2
Suspension0.345.3%2
Visibility0.172.6%1

Mileage Statistics

154,583
Mean
176,089
Median
133,721
25th Percentile
204,550
75th Percentile
3.75% failures per 10K miles

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

About This Data

The 1999 Isuzu Trucks Unclassified has an MOT pass rate of 42.1% based on 38 tests — significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 154,583 miles on the odometer. With a 57.9% failure rate, the 1999 Unclassified is rated as "Very Poor" for MOT reliability.

If you own or are considering buying a 1999 Isuzu Trucks Unclassified, be prepared for above-average maintenance costs. 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 an average mileage of 154,583 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.

Body, chassis, structure — 10.5% of failures

Body, chassis, structure issues account for 10.5% of MOT failures on 1999 Isuzu Trucks 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.

Brakes — 5.3% of failures

Brakes issues account for 5.3% of MOT failures on 1999 Isuzu Trucks Unclassified 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).

Steering — 5.3% of failures

Steering issues account for 5.3% of MOT failures on 1999 Isuzu Trucks Unclassified 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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