League table/ZENNCO
Make report · 2005–2025
ZENNCO
54.6%
first-time pass rate
36.5%
failed outright
370
MOT tests, 2005–2025
What fails a ZENNCO
failure defects across all ZENNCO models · advisories excluded
lighting and signalling is ZENNCO's most common failure — 21.1% of all ZENNCO tests record one.
| Component group | Share of defects | % of tests | Worst offenders |
|---|---|---|---|
| lighting and signalling |
|
21.1 | see ranking |
| steering and suspension |
|
23 | see ranking |
| brakes |
|
11.6 | see ranking |
| drive system |
|
6.5 | see ranking |
| tyres and wheels |
|
7 | see ranking |
Top failure groups aggregated across every ZENNCO model, 2005–2025. "% of tests" = share of the make's tests recording at least one defect in that group.
ZENNCO models, ranked by test volume
1 models with ≥ 100 normal tests, 2005–2025
| Model | Pass rate | Pass % | Fail % | Median miles | Tests |
|---|---|---|---|---|---|
| YB 125 |
|
43.0 | 46.6 | 6,123 | 193 |
Normal tests only. Median miles is odometer reading at test where recorded. Source: DVSA anonymised MOT results, 2005–2025.