Sinnis Js Reliability, MOT Pass Rate & Common Faults
Free Sinnis Js car check
Is the Sinnis Js reliable? We analysed 1,831 real MOT tests across 433 vehicles to find out.
Got a specific Sinnis Js? Enter the reg for a free check:
The Sinnis Js is about average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Sinnis Js.
Sinnis Js Number Plates
Number plates registered to a Sinnis Js. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Sinnis Js MOT Pass Rate by Year
How likely is a Sinnis Js to pass its MOT? Here's the pass rate for each registration year, newest first.
Sinnis Js Common Faults & Problems
These are the most common serious faults found on Sinnis Js models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Sinnis Js Mileage — What's Normal?
How many miles does a typical Sinnis Js owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Sinnis Js MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Sinnis Js year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2016 | 543 | 70.5% | 5,253 | 8,946 | 14,094 |
| 2015 | 925 | 74.8% | 4,801 | 8,832 | 14,654 |
| 2014 | 314 | 72.6% | 3,547 | 9,244 | 14,843 |
How Long Does a Sinnis Js Last?
Based on 433 Sinnis Js vehicles on UK roads.
Sinnis Js Mileage Distribution
Total mileage recorded across all Sinnis Js 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 Sinnis Js
Based on MOT pass rates across all registration years with sufficient test data.
74.8% MOT pass rate from 925 tests
70.5% MOT pass rate from 543 tests
The best year to buy a used Sinnis Js is 2015, which has the highest MOT pass rate at 74.8% across 925 tests. The 2016 model year has the lowest pass rate at 70.5% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Sinnis Js Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Sinnis Js THIS CAR | 73.3% | 1,831 | 8,884 mi | 12 yrs |
| Sinnis ZS 125-86 Terrain | 76.2% | 3,119 | 8,448 mi | — yrs |
| Sinnis ZS 125-79 Hoodlum | 74.1% | 2,419 | 5,439 mi | — yrs |
| Sinnis Xf | 73.9% | 2,293 | 5,743 mi | 13 yrs |
| Hyundai Tucson N Line T-gdi MHEV S-a | 91.8% | 1,479 | 27,512 mi | — yrs |
Compared to the Sinnis ZS 125-86 Terrain (76.2% pass rate) and the Sinnis ZS 125-79 Hoodlum (74.1% pass rate), the Sinnis Js trails behind on MOT reliability.
Found a Sinnis Js 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 Sinnis JsShould you buy a used Sinnis Js?
The Sinnis Js has an overall MOT pass rate of 73.3% across 1,831 real MOT tests — roughly in line with the UK average.
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 Sinnis Js with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.
A typical Sinnis Js owner drives around 1,204 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 Sinnis Js models stay on UK roads for around 12 years. 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.