League table/SANBEN
Make report · 2005–2025
SANBEN
59.4%
first-time pass rate
32.4%
failed outright
985
MOT tests, 2005–2025
SANBEN at a glance
Most reliable model
WY 125 T-21
63.9% pass
Least reliable model
WY 125 T-23
57.3% pass
Most tested model
WY 125 T-23
368 tests
Among SANBEN models with ≥ 100 tests.
What fails a SANBEN
failure defects across all SANBEN models · advisories excluded
steering and suspension is SANBEN's most common failure — 18.7% of all SANBEN tests record one.
| Component group | Share of defects | % of tests | Worst offenders |
|---|---|---|---|
| steering and suspension |
|
18.7 | see ranking |
| lighting and signalling |
|
17.9 | see ranking |
| brakes |
|
14.2 | see ranking |
| tyres and wheels |
|
7.1 | see ranking |
| fuel and exhaust |
|
3.1 | see ranking |
Top failure groups aggregated across every SANBEN model, 2005–2025. "% of tests" = share of the make's tests recording at least one defect in that group.
SANBEN models, ranked by test volume
2 models with ≥ 100 normal tests, 2005–2025
| Model | Pass rate | Pass % | Fail % | Median miles | Tests |
|---|---|---|---|---|---|
| WY 125 T-23 |
|
57.3 | 36.1 | 7,532 | 368 |
| WY 125 T-21 |
|
63.9 | 24.7 | 6,418 | 166 |
Normal tests only. Median miles is odometer reading at test where recorded. Source: DVSA anonymised MOT results, 2005–2025.