2004 Bentley Unclassified MOT Pass Rate
Pass rate for Unclassified models manufactured in 2004, based on 59 real MOT test results.
Data from official DVSA MOT testing records
2004 Bentley Unclassified MOT Analysis
The 2004 Bentley Unclassified has an MOT pass rate of 83.1% based on 59 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 48,014 miles on the odometer. With a 16.9% failure rate, the 2004 Unclassified is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 2004 Bentley Unclassified is Tyres, responsible for 6.8% of failures. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs range from £50–200 per tyre. Noise, emissions and leaks is the second most common issue at 3.4%. Lamps, reflectors and electrical equipment follows at 1.7%.
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 | Tyres | 6.8% | 4 |
| 2 | Noise, Emissions And Leaks | 3.4% | 2 |
| 3 | Lamps, Reflectors And Electrical Equipment | 1.7% | 1 |
Failures per 10,000 Miles
avg. 48,014 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 |
|---|---|---|---|
| Tyres | 1.41 | 6.8% | 4 |
| Noise, emissions and leaks | 0.71 | 3.4% | 2 |
| Lamps & Electrical | 0.35 | 1.7% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2004 Bentley Unclassified has an MOT pass rate of 83.1% based on 59 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 48,014 miles on the odometer. With a 16.9% failure rate, the 2004 Unclassified is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 2004 Bentley Unclassified, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to tyres: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating. With relatively low average mileage of 48,014 miles, many of these vehicles are still in good mechanical condition.
Tyres — 6.8% of failures
Tyres issues account for 6.8% of MOT failures on 2004 Bentley Unclassified models. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Noise, emissions and leaks — 3.4% of failures
Noise, emissions and leaks issues account for 3.4% of MOT failures on 2004 Bentley 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.
Lamps, reflectors and electrical equipment — 1.7% of failures
Lamps, reflectors and electrical equipment issues account for 1.7% of MOT failures on 2004 Bentley Unclassified models. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.