Yamaha Deltabox MOT Pass Rate
Overall pass rate across all manufacture years, based on 32 real MOT test results. Failure rate: 28.1%.
Data from official DVSA MOT testing records
Yamaha Deltabox MOT Reliability Overview
The Yamaha Deltabox is a rare vehicle in the UK, with 32 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 71.9% and a failure rate of 28.1%, which is above the UK average of approximately 37%.
Based on this data, the Yamaha Deltabox earns a "Very Good" reliability rating. The average Yamaha Deltabox presents for MOT with approximately 35,676 miles on the clock.
The most common MOT failure for the Yamaha Deltabox is Motorcycle brakes, affecting 31.3% of all tests. 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. The second most common issue is Motorcycle lighting and signalling at 12.5%. Motorcycle suspension rounds out the top three at 12.5%. 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 | Motorcycle Brakes | 31.3% | 10 |
| 2 | Motorcycle Lighting And Signalling | 12.5% | 4 |
| 3 | Motorcycle Suspension | 12.5% | 4 |
| 4 | Motorcycle Structure And Attachments | 9.4% | 3 |
| 5 | Motorcycle Steering And Suspension | 9.4% | 3 |
| 6 | Motorcycle Reg Plates And Vin | 6.3% | 2 |
| 7 | Motorcycle Drive System | 3.1% | 1 |
| 8 | Motorcycle Steering | 3.1% | 1 |
| 9 | Motorcycle Audible Warning (Horn) | 3.1% | 1 |
| 10 | Motorcycle Tyres And Wheels | 3.1% | 1 |
Failures per 10,000 Miles
avg. 35,676 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 brakes | 8.76 | 31.3% | 10 |
| Motorcycle lighting and signalling | 3.50 | 12.5% | 4 |
| Motorcycle suspension | 3.50 | 12.5% | 4 |
| Motorcycle structure and attachments | 2.63 | 9.4% | 3 |
| Motorcycle steering and suspension | 2.63 | 9.4% | 3 |
| Motorcycle reg plates and vin | 1.75 | 6.3% | 2 |
| Motorcycle drive system | 0.88 | 3.1% | 1 |
| Motorcycle steering | 0.88 | 3.1% | 1 |
| Motorcycle audible warning (Horn) | 0.88 | 3.1% | 1 |
| Motorcycle tyres and wheels | 0.88 | 3.1% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Yamaha Deltabox has 35,676 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 Yamaha Deltabox has a mileage-adjusted failure rate of 7.88% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.
About Yamaha Deltabox MOT Data
The Yamaha Deltabox is a rare vehicle in the UK, with 32 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 71.9% and a failure rate of 28.1%, which is above the UK average of approximately 37%.
For Yamaha Deltabox owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on motorcycle brakes and motorcycle lighting and signalling 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 Deltabox is likely to perform.
Motorcycle brakes — 31.3% of failures
Motorcycle brakes issues account for 31.3% of MOT failures on the Yamaha Deltabox. 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 lighting and signalling — 12.5% of failures
Motorcycle lighting and signalling issues account for 12.5% of MOT failures on the Yamaha Deltabox. Motorcycle lighting and signalling 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.
Motorcycle suspension — 12.5% of failures
Motorcycle suspension issues account for 12.5% of MOT failures on the Yamaha Deltabox. 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.
Frequently Asked Questions
What is the MOT pass rate for the Yamaha Deltabox?
Based on 32 (based on limited data) MOT tests in our database, the Yamaha Deltabox has an overall pass rate of 71.9% (28.1% fail rate).
What are the most common MOT failures on a Yamaha Deltabox?
The top 3 reasons a Yamaha Deltabox fails its MOT are: 1. Motorcycle brakes (31.3%), 2. Motorcycle lighting and signalling (12.5%), 3. Motorcycle suspension (12.5%). Check these areas before booking your MOT.
Is the Yamaha Deltabox reliable?
With a 28.1% MOT failure rate, the Deltabox is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Yamaha Deltabox?
Based on failure data, focus on: Motorcycle brakes (31.3%); Motorcycle lighting and signalling (12.5%); Motorcycle suspension (12.5%). 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.