Mz ETZ251 Reliability, MOT Pass Rate & Common Faults
Free Mz ETZ251 car check
Is the Mz ETZ251 reliable? We analysed 1,783 real MOT tests across 275 vehicles to find out.
Got a specific Mz ETZ251? Enter the reg for a free check:
The Mz ETZ251 is above average for reliability based on real UK MOT data. Common problems include shock absorber seal failed and leaking oil, stop lamp does not illuminate immediately a brake applies and headlamp at least one does not illuminate on dipped beam. Here's everything you need to know before buying a used Mz ETZ251.
Mz ETZ251 Number Plates
Number plates registered to a Mz ETZ251. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Mz ETZ251 MOT Pass Rate by Year
How likely is a Mz ETZ251 to pass its MOT? Here's the pass rate for each registration year, newest first.
Mz ETZ251 Problems — What Goes Wrong?
The most common reasons a Mz ETZ251 fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Mz ETZ251 Mileage — What's Normal?
How many miles does a typical Mz ETZ251 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Mz ETZ251 MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Mz ETZ251 year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 1996 | 95 | 83.2% | 23,290 | 34,962 | 43,415 |
| 1995 | 269 | 91.8% | 15,690 | 33,005 | 46,484 |
| 1994 | 181 | 87.3% | 20,417 | 35,874 | 46,818 |
| 1993 | 188 | 88.3% | 19,228 | 34,267 | 49,171 |
| 1992 | 337 | 86.6% | 17,186 | 30,948 | 46,437 |
| 1991 | 117 | 86.3% | 26,739 | 35,974 | 43,893 |
| 1990 | 337 | 84.9% | 11,370 | 20,421 | 28,472 |
| 1989 | 170 | 85.9% | 16,428 | 27,438 | 44,645 |
How Long Does a Mz ETZ251 Last?
Based on 275 Mz ETZ251 vehicles on UK roads.
Mz ETZ251 Mileage Distribution
Total mileage recorded across all Mz ETZ251 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 Mz ETZ251
Based on MOT pass rates across all registration years with sufficient test data.
91.8% MOT pass rate from 269 tests
83.2% MOT pass rate from 95 tests
The best year to buy a used Mz ETZ251 is 1995, which has the highest MOT pass rate at 91.8% across 269 tests. The 1996 model year has the lowest pass rate at 83.2% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Mz ETZ251 Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Mz ETZ251 THIS CAR | 87.4% | 1,783 | 27,948 mi | 37 yrs |
| Mz Baghira | 83.4% | 3,293 | 15,070 mi | 26 yrs |
| Mz ETZ250 | 88.2% | 2,739 | 26,583 mi | 45 yrs |
| Mz Skorpion | 84.4% | 1,952 | 24,117 mi | 32 yrs |
| Volvo V60 R-design + D4 Auto | 85.9% | 1,385 | 48,092 mi | — yrs |
Compared to the Mz Baghira (83.4% pass rate) and the Mz ETZ250 (88.2% pass rate), the Mz ETZ251 sits in the middle of the pack on MOT reliability.
Found a Mz ETZ251 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 Mz ETZ251Should you buy a used Mz ETZ251?
The Mz ETZ251 has an overall MOT pass rate of 87.4% across 1,783 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 Mz ETZ251 are shock absorber seal failed and leaking oil (21 recorded failures), stop lamp does not illuminate immediately a brake applies (17), and headlamp at least one does not illuminate on dipped beam (9). 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.
A typical Mz ETZ251 owner drives around 652 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 Mz ETZ251 models stay on UK roads for around 37 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.