2004 Pontiac Unclassified MOT Pass Rate
Pass rate for Unclassified models manufactured in 2004, based on 57 real MOT test results.
Data from official DVSA MOT testing records
2004 Pontiac Unclassified MOT Analysis
The 2004 Pontiac Unclassified has an MOT pass rate of 56.1% based on 57 tests — slightly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 83,625 miles on the odometer. With a 43.9% failure rate, the 2004 Unclassified is rated as "Below Average" for MOT reliability.
The leading cause of MOT failure for the 2004 Pontiac Unclassified is Exhaust, Fuel and Emissions, 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+.
Top failures specific to 2004 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
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Exhaust, Fuel And Emissions | 1.8% | 1 |
Failures per 10,000 Miles
avg. 83,625 miFor 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.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Emissions & Exhaust | 0.21 | 1.8% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2004 Pontiac Unclassified has an MOT pass rate of 56.1% based on 57 tests — slightly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 83,625 miles on the odometer. With a 43.9% failure rate, the 2004 Unclassified is rated as "Below Average" for MOT reliability.
If you own or are considering buying a 2004 Pontiac Unclassified, budget for potential repairs before each MOT. 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 an average mileage of 83,625 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Exhaust, Fuel and Emissions — 1.8% of failures
Exhaust, Fuel and Emissions issues account for 1.8% of MOT failures on 2004 Pontiac 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.