Sub-frame corroded on the Citroen C1
Sub-frame corroded on the Citroen C1 is recorded on 31,301 tests — 5.3% of all its MOT tests, against 2.4% across every car in the data. That is 2.2× the national share.
Is this unusual for this model?
| Compared with | What it says |
|---|---|
| Every car in the data | 2.4% of tests record it — this model is 2.2× that share |
| The 291 models compared | 48 of 291, highest first |
| The model's own record | 585,817 tests · every year of the C1 → |
A share of tests is not a probability for your car: it counts every Citroen C1 tested, whatever its mileage, service history and use. The like-for-like comparison on the model page is the fairer number.
Year by year
In 2005, 3.4% of this model's tests recorded it; in 2017, 0.5%. The share has fallen 2.9 points over that time. Worst year 2007 at 4.9%; best 2017 at 0.5%.
| Year | Failures recorded | Tests | Share of tests |
|---|---|---|---|
| 2005 | 187 | 5,444 | 3.4% |
| 2006 | 1,357 | 35,570 | 3.8% |
| 2007 | 2,712 | 55,736 | 4.9% |
| 2008 | 3,349 | 77,776 | 4.3% |
| 2009 | 3,735 | 89,936 | 4.2% |
| 2010 | 3,735 | 96,460 | 3.9% |
| 2011 | 3,921 | 101,280 | 3.9% |
| 2012 | 3,963 | 149,088 | 2.7% |
| 2013 | 2,926 | 98,836 | 3.0% |
| 2014 | 1,995 | 93,608 | 2.1% |
| 2015 | 1,820 | 122,030 | 1.5% |
| 2016 | 1,222 | 122,908 | 1.0% |
| 2017 | 302 | 60,266 | 0.5% |
Years with fewer than 0.2% of tests recording the item are left out: a year with two failures in 400 tests is noise, and this table is not here to make noise look like a trend.
What it costs
A typical UK repair for this item is £180–£450 fitted. It is a job for a garage, not a driveway. What the part is, and what to buy →
Prices are typical UK supply-and-fitting estimates, not quotes. What happens if it fails covers the retest rules.
Where this sits
- Sub-frame corroded: every model, every year → — the item's own page, with the part guide.
- Citroen C1 MOT pass rate by year → — the model's whole record, and what else it fails on.
- Every Citroen model →