League table/MZ
Make report · 2005–2025
MZ
83.6%
first-time pass rate
8.8%
failed outright
29.6k
MOT tests, 2005–2025
MZ at a glance
Most reliable model
ETZ150
90.8% pass
Least reliable model
125SM
65.5% pass
Most tested model
BAGHIRA
2,702 tests
Among MZ models with ≥ 100 tests.
What fails a MZ
failure defects across all MZ models · advisories excluded
lighting and signalling is MZ's most common failure — 4.4% of all MZ tests record one.
| Component group | Share of defects | % of tests | Worst offenders |
|---|---|---|---|
| lighting and signalling |
|
4.4 | see ranking |
| brakes |
|
3 | see ranking |
| steering and suspension |
|
2.3 | see ranking |
| tyres and wheels |
|
1.6 | see ranking |
| lamps and reflectors |
|
0.6 | see ranking |
Top failure groups aggregated across every MZ model, 2005–2025. "% of tests" = share of the make's tests recording at least one defect in that group.
MZ models, ranked by test volume
31 models with ≥ 100 normal tests, 2005–2025
| Model | Pass rate | Pass % | Fail % | Median miles | Tests |
|---|---|---|---|---|---|
| BAGHIRA |
|
80.6 | 11.1 | 14,373 | 2,702 |
| ETZ250 |
|
86.6 | 5.6 | 27,080 | 2,568 |
| SKORPION |
|
82.0 | 11.1 | 23,529 | 1,626 |
| ETZ251 |
|
85.7 | 7.0 | 26,720 | 1,621 |
| TS250 |
|
88.4 | 4.7 | 22,824 | 1,408 |
| ETZ125 |
|
77.6 | 13.5 | 17,901 | 1,000 |
| TS125 |
|
83.4 | 8.5 | 13,302 | 968 |
| TS250/1 |
|
87.4 | 6.5 | 21,618 | 889 |
| MASTIFF |
|
81.3 | 11.1 | 12,562 | 888 |
| RT125 |
|
69.8 | 19.5 | 9,541 | 850 |
| 125SM |
|
65.5 | 24.3 | 17,087 | 692 |
| ETZ301 |
|
84.1 | 8.0 | 31,240 | 675 |
| ETZ |
|
86.4 | 5.8 | 24,468 | 638 |
| SAXON |
|
84.7 | 6.3 | 36,407 | 601 |
| TS150 |
|
88.0 | 4.9 | 13,118 | 507 |
| 250 |
|
88.4 | 6.6 | 26,887 | 335 |
| ETZ300 |
|
85.9 | 5.3 | 26,569 | 304 |
| MZ |
|
88.6 | 6.1 | 25,871 | 264 |
| 125SX |
|
66.5 | 22.8 | 14,974 | 263 |
| MOSKITO |
|
71.1 | 18.7 | 8,128 | 225 |
| 500R |
|
90.4 | 3.7 | 22,513 | 188 |
| 125 |
|
76.4 | 15.9 | 13,934 | 182 |
| SCORPION |
|
81.7 | 14.2 | 24,888 | 169 |
| ES250/2 |
|
89.4 | 2.6 | 11,558 | 151 |
| TROPHY |
|
88.8 | 3.5 | 14,405 | 143 |
| TS |
|
85.6 | 5.0 | 22,143 | 139 |
| ETZ150 |
|
90.8 | 4.6 | 19,827 | 130 |
| SIMSON |
|
76.5 | 11.8 | 2,440 | 119 |
| 301 |
|
87.1 | 6.9 | 39,852 | 116 |
| SAXON TOUR |
|
89.0 | 5.5 | 30,275 | 109 |
| 251 |
|
87.3 | 8.8 | 29,830 | 102 |
Normal tests only. Median miles is odometer reading at test where recorded. Source: DVSA anonymised MOT results, 2005–2025.