2020 Ajs Firefox MOT Pass Rate
Pass rate for Firefox models manufactured in 2020, based on 102 real MOT test results.
Data from official DVSA MOT testing records
This page shows all Firefox cars tested in 2020. Want to see how cars built in 2020 hold up over time?
View 2020 Ajs Firefox vintage page → (72.9% current pass rate)2020 Ajs Firefox MOT Analysis
The 2020 Ajs Firefox has an MOT pass rate of 69.6% based on 102 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 7,503 miles on the odometer. With a 30.4% failure rate, the 2020 Firefox is rated as "Good" for MOT reliability.
The leading cause of MOT failure for the 2020 Ajs Firefox is Motorcycle tyres, responsible for 8.8% 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. Motorcycle brakes is the second most common issue at 6.9%. Motorcycle structure and attachments follows at 5.9%.
Top failures specific to 2020 models only. The overall Firefox 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 | Motorcycle Tyres | 8.8% | 9 |
| 2 | Motorcycle Brakes | 6.9% | 7 |
| 3 | Motorcycle Structure And Attachments | 5.9% | 6 |
| 4 | Motorcycle Steering | 4.9% | 5 |
| 5 | Motorcycle Suspension | 4.9% | 5 |
| 6 | Motorcycle Lamps And Reflectors | 4.9% | 5 |
| 7 | Motorcycle Audible Warning (Horn) | 1.0% | 1 |
Failures per 10,000 Miles
avg. 7,503 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 |
|---|---|---|---|
| Motorcycle tyres | 11.76 | 8.8% | 9 |
| Motorcycle brakes | 9.15 | 6.9% | 7 |
| Motorcycle structure and attachments | 7.84 | 5.9% | 6 |
| Motorcycle steering | 6.53 | 4.9% | 5 |
| Motorcycle suspension | 6.53 | 4.9% | 5 |
| Motorcycle lamps and reflectors | 6.53 | 4.9% | 5 |
| Motorcycle audible warning (Horn) | 1.31 | 1.0% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2020 Ajs Firefox has an MOT pass rate of 69.6% based on 102 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 7,503 miles on the odometer. With a 30.4% failure rate, the 2020 Firefox is rated as "Good" for MOT reliability.
If you own or are considering buying a 2020 Ajs Firefox, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle 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 7,503 miles, many of these vehicles are still in good mechanical condition.
Motorcycle tyres — 8.8% of failures
Motorcycle tyres issues account for 8.8% of MOT failures on 2020 Ajs Firefox 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.
Motorcycle brakes — 6.9% of failures
Motorcycle brakes issues account for 6.9% of MOT failures on 2020 Ajs Firefox 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).
Motorcycle structure and attachments — 5.9% of failures
Motorcycle structure and attachments issues account for 5.9% of MOT failures on 2020 Ajs Firefox models. Motorcycle structure and attachments issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs: £100–400. Pre-MOT check: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.