Citroen C1: reliability by registration year
2005-2021 · 17 registration years · 156,408 first tests
Registration years
First-attempt MOT results for every C1 registration year with at least 500 first tests in 2025. Pass rates rise with newer cars, so read a year against its neighbours rather than against the top of the table.
| Year | First tests | First-attempt pass | Incl. PRS | Most common failure |
|---|---|---|---|---|
| 2021 | 4,384 | 90.0% | 92.5% | Brake pads (front) 16.2% |
| 2020 | 3,630 | 86.6% | 89.9% | Tyre condition (front) 18.8% |
| 2019 | 5,083 | 84.3% | 89.0% | Windscreen wipers (front) 16.9% |
| 2018 | 6,976 | 84.0% | 88.0% | Tyre condition (front) 15.9% |
| about 2 in every 100 better than the years either side. What most often failed a 2018 C1: Tyre condition (front) (15.9%) · Windscreen wipers (front) (10.2%) · Tyre tread depth (front) (9.9%) | ||||
| 2017 | 8,800 | 80.2% | 84.8% | Tyre condition (front) 10.8% |
| 2016 | 17,491 | 76.3% | 81.6% | Tyre condition (front) 10.1% |
| about 2 in every 100 worse than the years either side. What most often failed a 2016 C1: Tyre condition (front) (10.1%) · Petrol engine warning light (9.5%) · Tyre tread depth (front) (8.9%) | ||||
| 2015 | 17,206 | 75.5% | 80.8% | Tyre condition (front) 9.6% |
| 2014 | 13,005 | 72.8% | 78.7% | Tyre condition (front) 8.7% |
| 2013 | 13,273 | 67.5% | 74.7% | Headlight aim 10.1% |
| 2012 | 12,916 | 64.5% | 72.5% | Individual sidelight or tail light (front) 13.2% |
| 2011 | 12,693 | 60.2% | 68.6% | Individual sidelight or tail light (front) 16.4% |
| 2010 | 11,836 | 58.3% | 66.6% | Individual sidelight or tail light (front) 13.4% |
| 2009 | 10,477 | 54.7% | 63.2% | Brake performance (roller test, rear) 16.9% |
| 2008 | 8,458 | 51.7% | 60.1% | Brake performance (roller test, rear) 15.1% |
| 2007 | 5,910 | 52.3% | 60.7% | Individual sidelight or tail light (front) 15.0% |
| 2006 | 3,686 | 50.8% | 59.5% | Individual sidelight or tail light (front) 14.0% |
| 2005 | 584 | 52.4% | 61.0% | |