Isuzu Unknown Reliability, MOT Pass Rate & Common Faults
Free Isuzu Unknown car check
Is the Isuzu Unknown reliable? We analysed 1,131 real MOT tests across 219 vehicles to find out.
Got a specific Isuzu Unknown? Enter the reg for a free check:
The Isuzu Unknown is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Isuzu Unknown.
Isuzu Unknown Number Plates
Number plates registered to a Isuzu Unknown. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Isuzu Unknown MOT Pass Rate by Year
How likely is a Isuzu Unknown to pass its MOT? Here's the pass rate for each registration year, newest first.
Isuzu Unknown Problems — What Goes Wrong?
The most common reasons a Isuzu Unknown fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Isuzu Unknown Common Faults & Problems
These are the most common serious faults found on Isuzu Unknown models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Isuzu Unknown Mileage — What's Normal?
How many miles does a typical Isuzu Unknown owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Isuzu Unknown MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Isuzu Unknown year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2020 | 63 | 90.5% | 38,270 | 49,389 | 70,380 |
| 2017 | 348 | 98.6% | 49,605 | 70,145 | 93,432 |
| 2016 | 311 | 94.2% | 44,538 | 65,467 | 95,297 |
How Long Does a Isuzu Unknown Last?
Based on 219 Isuzu Unknown vehicles on UK roads.
Isuzu Unknown Mileage Distribution
Total mileage recorded across all Isuzu Unknown 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 Isuzu Unknown
Based on MOT pass rates across all registration years with sufficient test data.
98.6% MOT pass rate from 348 tests
90.5% MOT pass rate from 63 tests
The best year to buy a used Isuzu Unknown is 2017, which has the highest MOT pass rate at 98.6% across 348 tests. The 2020 model year has the lowest pass rate at 90.5% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Isuzu Unknown Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Isuzu Unknown THIS CAR | 89.6% | 1,131 | 73,077 mi | 10 yrs |
| Isuzu Trooper | 69% | 362,452 | 117,154 mi | 38 yrs |
| Isuzu D-max | 79.2% | 268,922 | 63,046 mi | 13 yrs |
| Isuzu Rodeo | 71% | 189,090 | 87,999 mi | 24 yrs |
| Mazda 323 Glxi Abs Auto | 59.9% | 563 | 87,306 mi | 35 yrs |
Compared to the Isuzu Trooper (69.0% pass rate) and the Isuzu D-max (79.2% pass rate), the Isuzu Unknown outperforms both on MOT reliability.
Found a Isuzu Unknown 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 Isuzu UnknownShould you buy a used Isuzu Unknown?
The Isuzu Unknown has an overall MOT pass rate of 89.6% across 1,131 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common failure point is fog lamp not working with 3 recorded occurrences. Check for this on any test drive or pre-purchase inspection.
On the safety side, the most frequently flagged dangerous fault is tyre tread depth below requirements of 1.6mm. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Isuzu Unknown with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.
A typical Isuzu Unknown owner drives around 10,787 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 Isuzu Unknown models stay on UK roads for around 10 years. If you're buying one that's already well within 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.