2021 Ford Fiesta St-line X Edition Turbo MOT Pass Rate
Pass rate for Fiesta St-line X Edition Turbo models manufactured in 2021, based on 33 real MOT test results.
Data from official DVSA MOT testing records
This page shows all Fiesta St-line X Edition Turbo cars tested in 2021. Want to see how cars built in 2021 hold up over time?
View 2021 Ford Fiesta St-line X Edition Turbo vintage page → (81.8% current pass rate)2021 Ford Fiesta St-line X Edition Turbo MOT Analysis
The 2021 Ford Fiesta St-line X Edition Turbo has an MOT pass rate of 81.8% based on 33 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 36,588 miles on the odometer. With a 18.2% failure rate, the 2021 Fiesta St-line X Edition Turbo is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 2021 Ford Fiesta St-line X Edition Turbo is Noise, emissions and leaks, responsible for 18.2% 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 12.1%. Road Wheels follows at 9.1%.
Top failures specific to 2021 models only. The overall Fiesta St-line X Edition Turbo 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 | Noise, Emissions And Leaks | 18.2% | 6 |
| 2 | Lamps, Reflectors And Electrical Equipment | 12.1% | 4 |
| 3 | Road Wheels | 9.1% | 3 |
| 4 | Tyres | 9.1% | 3 |
| 5 | Identification Of The Vehicle | 3.0% | 1 |
| 6 | Non-component Advisories | 3.0% | 1 |
| 7 | Visibility | 3.0% | 1 |
Failures per 10,000 Miles
avg. 36,588 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 |
|---|---|---|---|
| Noise, emissions and leaks | 4.97 | 18.2% | 6 |
| Lamps & Electrical | 3.31 | 12.1% | 4 |
| Wheels | 2.48 | 9.1% | 3 |
| Tyres | 2.48 | 9.1% | 3 |
| Identification of the vehicle | 0.83 | 3.0% | 1 |
| Non-component advisories | 0.83 | 3.0% | 1 |
| Visibility | 0.83 | 3.0% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2021 Ford Fiesta St-line X Edition Turbo has an MOT pass rate of 81.8% based on 33 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 36,588 miles on the odometer. With a 18.2% failure rate, the 2021 Fiesta St-line X Edition Turbo is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 2021 Ford Fiesta St-line X Edition Turbo, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to noise, emissions and leaks: 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 relatively low average mileage of 36,588 miles, many of these vehicles are still in good mechanical condition.
Noise, emissions and leaks — 18.2% of failures
Noise, emissions and leaks issues account for 18.2% of MOT failures on 2021 Ford Fiesta St-line X Edition Turbo 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 — 12.1% of failures
Lamps, reflectors and electrical equipment issues account for 12.1% of MOT failures on 2021 Ford Fiesta St-line X Edition Turbo 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.
Road Wheels — 9.1% of failures
Road Wheels issues account for 9.1% of MOT failures on 2021 Ford Fiesta St-line X Edition Turbo models. Wheel failures include cracked or severely corroded alloy wheels, missing or loose wheel nuts, and wheels that are insecurely attached. These are safety-critical and relatively rare compared to tyre failures. Typical repair costs: £100–400 per wheel. Pre-MOT check: Visually inspect wheels for cracks, especially around the spokes and rim. Check that all wheel nuts are present and tightened. Look for signs of impact damage on alloy wheels.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.