Sym Jet 4 125 E4 Reliability, MOT Pass Rate & Common Faults
Free Sym Jet 4 125 E4 car check
Is the Sym Jet 4 125 E4 reliable? We analysed 1,657 real MOT tests across 535 vehicles to find out.
Got a specific Sym Jet 4 125 E4? Enter the reg for a free check:
The Sym Jet 4 125 E4 is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Sym Jet 4 125 E4.
Sym Jet 4 125 E4 Number Plates
Number plates registered to a Sym Jet 4 125 E4. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Sym Jet 4 125 E4 MOT Pass Rate by Year
How likely is a Sym Jet 4 125 E4 to pass its MOT? Here's the pass rate for each registration year, newest first.
Sym Jet 4 125 E4 Common Faults & Problems
These are the most common serious faults found on Sym Jet 4 125 E4 models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Sym Jet 4 125 E4 Mileage — What's Normal?
How many miles does a typical Sym Jet 4 125 E4 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 E4 MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Sym Jet 4 125 E4 year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2021 | 120 | 78.3% | 5,934 | 11,688 | 16,506 |
| 2020 | 291 | 78.4% | 8,171 | 11,864 | 17,232 |
| 2019 | 356 | 77.0% | 5,991 | 11,681 | 18,727 |
| 2018 | 455 | 78.5% | 5,200 | 10,739 | 17,132 |
| 2017 | 397 | 78.1% | 7,306 | 12,427 | 19,952 |
How Long Does a Sym Jet 4 125 E4 Last?
Based on 535 Sym Jet 4 125 E4 vehicles on UK roads.
Sym Jet 4 125 E4 Mileage Distribution
Total mileage recorded across all Sym Jet 4 125 E4 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 E4
Based on MOT pass rates across all registration years with sufficient test data.
78.5% MOT pass rate from 455 tests
77.0% MOT pass rate from 356 tests
The best year to buy a used Sym Jet 4 125 E4 is 2018, which has the highest MOT pass rate at 78.5% across 455 tests. The 2019 model year has the lowest pass rate at 77.0% — 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 E4 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 E4 THIS CAR | 78.1% | 1,657 | 11,604 mi | — 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 |
| Royal Enfield Crusader | 92% | 653 | 7,320 mi | 67 yrs |
Compared to the Sym Jet (78.3% pass rate) and the Sym DD50 (78.4% pass rate), the Sym Jet 4 125 E4 trails behind on MOT reliability.
Found a Sym Jet 4 125 E4 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 4 125 E4Should you buy a used Sym Jet 4 125 E4?
The Sym Jet 4 125 E4 has an overall MOT pass rate of 78.1% across 1,657 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
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 E4 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 E4 owner drives around 2,041 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.
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.