2004 Renault Megane Dynamique Dci 80 MOT Pass Rate
Pass rate for Megane Dynamique Dci 80 models manufactured in 2004, based on 31 real MOT test results.
Data from official DVSA MOT testing records
2004 Renault Megane Dynamique Dci 80 MOT Analysis
The 2004 Renault Megane Dynamique Dci 80 has an MOT pass rate of 35.5% based on 31 tests — significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 82,983 miles on the odometer. With a 64.5% failure rate, the 2004 Megane Dynamique Dci 80 is rated as "Very Poor" for MOT reliability.
The leading cause of MOT failure for the 2004 Renault Megane Dynamique Dci 80 is Exhaust, Fuel and Emissions, responsible for 9.7% 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+. Lamps, Reflectors and Electrical Equipment is the second most common issue at 6.5%. Suspension follows at 3.2%.
Top failures specific to 2004 models only. The overall Megane Dynamique Dci 80 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 | 9.7% | 3 |
| 2 | Lamps, Reflectors And Electrical Equipment | 6.5% | 2 |
| 3 | Suspension | 3.2% | 1 |
Failures per 10,000 Miles
avg. 82,983 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.
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| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Emissions & Exhaust | 1.17 | 9.7% | 3 |
| Lamps & Electrical | 0.78 | 6.5% | 2 |
| Suspension | 0.39 | 3.2% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2004 Renault Megane Dynamique Dci 80 has an MOT pass rate of 35.5% based on 31 tests — significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 82,983 miles on the odometer. With a 64.5% failure rate, the 2004 Megane Dynamique Dci 80 is rated as "Very Poor" for MOT reliability.
If you own or are considering buying a 2004 Renault Megane Dynamique Dci 80, 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 an average mileage of 82,983 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Exhaust, Fuel and Emissions — 9.7% of failures
Exhaust, Fuel and Emissions issues account for 9.7% of MOT failures on 2004 Renault Megane Dynamique Dci 80 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 — 6.5% of failures
Lamps, Reflectors and Electrical Equipment issues account for 6.5% of MOT failures on 2004 Renault Megane Dynamique Dci 80 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.
Suspension — 3.2% of failures
Suspension issues account for 3.2% of MOT failures on 2004 Renault Megane Dynamique Dci 80 models. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.