2004 Smart Roadster Light Auto MOT Pass Rate
Pass rate for Roadster Light Auto models manufactured in 2004, based on 393 real MOT test results.
Data from official DVSA MOT testing records
This page shows all Roadster Light Auto cars tested in 2004. Want to see how cars built in 2004 hold up over time?
View 2004 Smart Roadster Light Auto vintage page → (58.1% current pass rate)2004 Smart Roadster Light Auto MOT Analysis
The 2004 Smart Roadster Light Auto has an MOT pass rate of 58.8% based on 393 tests — slightly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 71,821 miles on the odometer. With a 41.2% failure rate, the 2004 Roadster Light Auto is rated as "Below Average" for MOT reliability.
The leading cause of MOT failure for the 2004 Smart Roadster Light Auto is Tyres, responsible for 3.1% 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. Brakes is the second most common issue at 1.5%. Lamps, reflectors and electrical equipment follows at 1.5%.
Top failures specific to 2004 models only. The overall Roadster Light Auto 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 | 3.1% | 12 |
| 2 | Brakes | 1.5% | 6 |
| 3 | Lamps, Reflectors And Electrical Equipment | 1.5% | 6 |
| 4 | Visibility | 1.0% | 4 |
| 5 | Suspension | 0.3% | 1 |
Failures per 10,000 Miles
avg. 71,821 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 | 0.43 | 3.1% | 12 |
| Brakes | 0.21 | 1.5% | 6 |
| Lamps & Electrical | 0.21 | 1.5% | 6 |
| Visibility | 0.14 | 1.0% | 4 |
| Suspension | 0.04 | 0.3% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2004 Smart Roadster Light Auto has an MOT pass rate of 58.8% based on 393 tests — slightly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 71,821 miles on the odometer. With a 41.2% failure rate, the 2004 Roadster Light Auto is rated as "Below Average" for MOT reliability.
If you own or are considering buying a 2004 Smart Roadster Light Auto, budget for potential repairs before each MOT. 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. At 71,821 average miles, these vehicles are in the mid-range where component wear starts to become a factor.
Tyres — 3.1% of failures
Tyres issues account for 3.1% of MOT failures on 2004 Smart Roadster Light Auto 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.
Brakes — 1.5% of failures
Brakes issues account for 1.5% of MOT failures on 2004 Smart Roadster Light Auto 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).
Lamps, reflectors and electrical equipment — 1.5% of failures
Lamps, reflectors and electrical equipment issues account for 1.5% of MOT failures on 2004 Smart Roadster Light Auto 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.