Westfield Sei W MOT Pass Rate
Overall pass rate across all manufacture years, based on 79 real MOT test results. Failure rate: 10.1%.
Data from official DVSA MOT testing records
Westfield Sei W MOT Reliability Overview
The Westfield Sei W is a rare vehicle in the UK, with 79 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 89.9% and a failure rate of 10.1%, which is well above the UK average of approximately 37%.
Based on this data, the Westfield Sei W earns a "Excellent" reliability rating. The average Westfield Sei W presents for MOT with approximately 14,402 miles on the clock.
The most common MOT failure for the Westfield Sei W is Lamps, Reflectors and Electrical Equipment, affecting 7.6% of all tests. 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. The second most common issue is Noise, emissions and leaks at 2.5%. Brakes rounds out the top three at 2.5%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.
Top failures across all manufacture years combined. Individual year pages may show different top failures.
What Fails Most
* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Lamps, Reflectors And Electrical Equipment | 7.6% | 6 |
| 2 | Brakes | 2.5% | 2 |
| 3 | Noise, Emissions And Leaks | 2.5% | 2 |
| 4 | Tyres | 1.3% | 1 |
| 5 | Steering | 1.3% | 1 |
| 6 | Identification Of The Vehicle | 1.3% | 1 |
| 7 | Visibility | 1.3% | 1 |
Failures per 10,000 Miles
avg. 14,402 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 |
|---|---|---|---|
| Lamps & Electrical | 5.27 | 7.6% | 6 |
| Brakes | 1.76 | 2.5% | 2 |
| Noise, emissions and leaks | 1.76 | 2.5% | 2 |
| Tyres | 0.88 | 1.3% | 1 |
| Steering | 0.88 | 1.3% | 1 |
| Identification of the vehicle | 0.88 | 1.3% | 1 |
| Visibility | 0.88 | 1.3% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Westfield Sei W has 14,402 miles when tested for MOT.
📊 Mileage-Adjusted Failure Rate
How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.
The Westfield Sei W has a mileage-adjusted failure rate of 7.01% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.
About Westfield Sei W MOT Data
The Westfield Sei W is a rare vehicle in the UK, with 79 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 89.9% and a failure rate of 10.1%, which is well above the UK average of approximately 37%.
For Westfield Sei W owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on lamps, reflectors and electrical equipment and noise, emissions and leaks for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific Sei W is likely to perform.
Lamps, Reflectors and Electrical Equipment — 7.6% of failures
Lamps, Reflectors and Electrical Equipment issues account for 7.6% of MOT failures on the Westfield Sei W. 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.
Noise, emissions and leaks — 2.5% of failures
Noise, emissions and leaks issues account for 2.5% of MOT failures on the Westfield Sei W. 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.
Brakes — 2.5% of failures
Brakes issues account for 2.5% of MOT failures on the Westfield Sei W. 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).
Frequently Asked Questions
What is the MOT pass rate for the Westfield Sei W?
Based on 79 (based on limited data) MOT tests in our database, the Westfield Sei W has an overall pass rate of 89.9% (10.1% fail rate).
What are the most common MOT failures on a Westfield Sei W?
The top 3 reasons a Westfield Sei W fails its MOT are: 1. Lamps, Reflectors and Electrical Equipment (7.6%), 2. Noise, emissions and leaks (2.5%), 3. Brakes (2.5%). Check these areas before booking your MOT.
Is the Westfield Sei W reliable?
With a 10.1% MOT failure rate, the Sei W is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Westfield Sei W?
Based on failure data, focus on: Lamps, Reflectors and Electrical Equipment (7.6%); Noise, emissions and leaks (2.5%); Brakes (2.5%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.