Sym Jet4 MOT Pass Rate
Overall pass rate across all manufacture years, based on 33 real MOT test results. Failure rate: 21.2%.
Data from official DVSA MOT testing records
Sym Jet4 MOT Reliability Overview
The Sym Jet4 is a rare vehicle in the UK, with 33 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 78.8% and a failure rate of 21.2%, which is well above the UK average of approximately 37%.
Based on this data, the Sym Jet4 earns a "Excellent" reliability rating. The average Sym Jet4 presents for MOT with approximately 10,515 miles on the clock.
The most common MOT failure for the Sym Jet4 is Motorcycle brakes, affecting 24.2% 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 steering and suspension at 21.2%. Motorcycle lighting and signalling rounds out the top three at 9.1%. 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 | 24.2% | 8 |
| 2 | Motorcycle Steering And Suspension | 21.2% | 7 |
| 3 | Motorcycle Lighting And Signalling | 9.1% | 3 |
| 4 | Motorcycle Tyres And Wheels | 9.1% | 3 |
| 5 | Motorcycle Lamps And Reflectors | 6.1% | 2 |
| 6 | Motorcycle Structure And Attachments | 6.1% | 2 |
| 7 | Motorcycle Suspension | 3.0% | 1 |
| 8 | Motorcycle Body And Structure | 3.0% | 1 |
Failures per 10,000 Miles
avg. 10,515 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 | 23.06 | 24.2% | 8 |
| Motorcycle steering and suspension | 20.17 | 21.2% | 7 |
| Motorcycle lighting and signalling | 8.65 | 9.1% | 3 |
| Motorcycle tyres and wheels | 8.65 | 9.1% | 3 |
| Motorcycle lamps and reflectors | 5.76 | 6.1% | 2 |
| Motorcycle structure and attachments | 5.76 | 6.1% | 2 |
| Motorcycle suspension | 2.88 | 3.0% | 1 |
| Motorcycle body and structure | 2.88 | 3.0% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Sym Jet4 has 10,515 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 Sym Jet4 has a mileage-adjusted failure rate of 20.16% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.
About Sym Jet4 MOT Data
The Sym Jet4 is a rare vehicle in the UK, with 33 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 78.8% and a failure rate of 21.2%, which is well above the UK average of approximately 37%.
For Sym Jet4 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 steering and suspension 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 Jet4 is likely to perform.
Motorcycle brakes — 24.2% of failures
Motorcycle brakes issues account for 24.2% of MOT failures on the Sym Jet4. 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 steering and suspension — 21.2% of failures
Motorcycle steering and suspension issues account for 21.2% of MOT failures on the Sym Jet4. 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.
Motorcycle lighting and signalling — 9.1% of failures
Motorcycle lighting and signalling issues account for 9.1% of MOT failures on the Sym Jet4. 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.
Frequently Asked Questions
What is the MOT pass rate for the Sym Jet4?
Based on 33 (based on limited data) MOT tests in our database, the Sym Jet4 has an overall pass rate of 78.8% (21.2% fail rate).
What are the most common MOT failures on a Sym Jet4?
The top 3 reasons a Sym Jet4 fails its MOT are: 1. Motorcycle brakes (24.2%), 2. Motorcycle steering and suspension (21.2%), 3. Motorcycle lighting and signalling (9.1%). Check these areas before booking your MOT.
Is the Sym Jet4 reliable?
With a 21.2% MOT failure rate, the Jet4 is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Sym Jet4?
Based on failure data, focus on: Motorcycle brakes (24.2%); Motorcycle steering and suspension (21.2%); Motorcycle lighting and signalling (9.1%). 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.