Sym Jet 4 125 Reliability, MOT Pass Rate & Common Faults
Free Sym Jet 4 125 car check
Is the Sym Jet 4 125 reliable? We analysed 495 real MOT tests across 101 vehicles to find out.
Got a specific Sym Jet 4 125? Enter the reg for a free check:
The Sym Jet 4 125 is above average for reliability based on real UK MOT data. Common problems include tyre tread depth is below minimum requirements of 1.0mm, steering headbearing has excessive free play and brake pad(s) less than 1.5 mm thick. Here's everything you need to know before buying a used Sym Jet 4 125.
Sym Jet 4 125 Number Plates
Number plates registered to a Sym Jet 4 125. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Sym Jet 4 125 MOT Pass Rate by Year
How likely is a Sym Jet 4 125 to pass its MOT? Here's the pass rate for each registration year, newest first.
Sym Jet 4 125 Problems — What Goes Wrong?
The most common reasons a Sym Jet 4 125 fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Sym Jet 4 125 Common Faults & Problems
These are the most common serious faults found on Sym Jet 4 125 models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Sym Jet 4 125 Mileage — What's Normal?
How many miles does a typical Sym Jet 4 125 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Sym Jet 4 125 MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Sym Jet 4 125 year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2011 | 228 | 77.6% | 8,505 | 14,838 | 20,682 |
| 2010 | 218 | 79.8% | 9,009 | 14,092 | 20,579 |
Sym Jet 4 125 Mileage Distribution
Total mileage recorded across all Sym Jet 4 125 MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Sym Jet 4 125
Based on MOT pass rates across all registration years with sufficient test data.
79.8% MOT pass rate from 218 tests
77.6% MOT pass rate from 228 tests
The best year to buy a used Sym Jet 4 125 is 2010, which has the highest MOT pass rate at 79.8% across 218 tests. The 2011 model year has the lowest pass rate at 77.6% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Sym Jet 4 125 Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Sym Jet 4 125 THIS CAR | 78.8% | 495 | 13,736 mi | 16 yrs |
| Sym Jet | 78.3% | 29,546 | 12,938 mi | 27 yrs |
| Sym DD50 | 78.4% | 6,368 | 9,469 mi | 24 yrs |
| Sym Jet 50 - Euro X | 77.9% | 5,537 | 12,781 mi | 23 yrs |
| Volvo Fl | 81.3% | 694 | 320,181 mi | — yrs |
Compared to the Sym Jet (78.3% pass rate) and the Sym DD50 (78.4% pass rate), the Sym Jet 4 125 outperforms both on MOT reliability.
Found a Sym Jet 4 125 you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Sym Jet 4 125Should you buy a used Sym Jet 4 125?
The Sym Jet 4 125 has an overall MOT pass rate of 78.8% across 495 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common problems on the Sym Jet 4 125 are tyre tread depth is below minimum requirements of 1.0mm (31 recorded failures), steering headbearing has excessive free play (10), and brake pad(s) less than 1.5 mm thick (8). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
On the safety side, the most frequently flagged dangerous fault is tyre tread depth is below minimum requirements of 1.0mm. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Sym Jet 4 125 with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.
A typical Sym Jet 4 125 owner drives around 1,878 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
In terms of longevity, most Sym Jet 4 125 models stay on UK roads for around 16 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.