Opel Unknown Reliability, MOT Pass Rate & Common Faults
Free Opel Unknown car check
Is the Opel Unknown reliable? We analysed 567 real MOT tests across 185 vehicles to find out.
Got a specific Opel Unknown? Enter the reg for a free check:
The Opel Unknown is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Opel Unknown.
Opel Unknown Number Plates
Number plates registered to a Opel Unknown. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Opel Unknown MOT Pass Rate by Year
How likely is a Opel Unknown to pass its MOT? Here's the pass rate for each registration year, newest first.
Opel Unknown Problems — What Goes Wrong?
The most common reasons a Opel Unknown fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Opel Unknown Common Faults & Problems
These are the most common serious faults found on Opel Unknown models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Opel Unknown Mileage — What's Normal?
How many miles does a typical Opel Unknown owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Opel Unknown MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Opel Unknown year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2019 | 110 | 75.5% | 36,447 | 46,844 | 64,173 |
How Long Does a Opel Unknown Last?
Based on 185 Opel Unknown vehicles on UK roads.
Opel Unknown Mileage Distribution
Total mileage recorded across all Opel 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 Opel Unknown
Based on MOT pass rates across all registration years with sufficient test data.
75.5% MOT pass rate from 110 tests
The best year to buy a used Opel Unknown is 2019, which has the highest MOT pass rate at 75.5% across 110 tests.
How Does the Opel Unknown Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Opel Unknown THIS CAR | 75.3% | 567 | 84,339 mi | — yrs |
| Opel Zafira | 68.5% | 30,915 | 93,196 mi | 27 yrs |
| Opel Astra | 69.2% | 26,435 | 84,472 mi | 28 yrs |
| Opel Corsa | 65.8% | 19,398 | 69,011 mi | 33 yrs |
| Piaggio Vespa Primavera 50 | 92.3% | 366 | 4,354 mi | 12 yrs |
Compared to the Opel Zafira (68.5% pass rate) and the Opel Astra (69.2% pass rate), the Opel Unknown outperforms both on MOT reliability.
Found a Opel 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 Opel UnknownShould you buy a used Opel Unknown?
The Opel Unknown has an overall MOT pass rate of 75.3% across 567 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 headlamp aim beam image kick up to the offside with 6 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 has ply or cords exposed. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Opel 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 Opel Unknown owner drives around 6,510 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.