League table/SIMSON
Make report · 2005–2025
SIMSON
79.8%
first-time pass rate
12.3%
failed outright
243
MOT tests, 2005–2025
What fails a SIMSON
failure defects across all SIMSON models · advisories excluded
lighting and signalling is SIMSON's most common failure — 6.2% of all SIMSON tests record one.
| Component group | Share of defects | % of tests | Worst offenders |
|---|---|---|---|
| lighting and signalling |
|
6.2 | see ranking |
| brakes |
|
6.6 | see ranking |
| steering and suspension |
|
5.3 | see ranking |
| lamps and reflectors |
|
2.1 | see ranking |
| drive system |
|
1.6 | see ranking |
Top failure groups aggregated across every SIMSON model, 2005–2025. "% of tests" = share of the make's tests recording at least one defect in that group.
SIMSON models, ranked by test volume
0 models with ≥ 100 normal tests, 2005–2025
| Model | Pass rate | Pass % | Fail % | Median miles | Tests |
|---|
Normal tests only. Median miles is odometer reading at test where recorded. Source: DVSA anonymised MOT results, 2005–2025.