Lambda reading outside limits on the Citroen C1
Lambda reading outside limits on the Citroen C1 is recorded on 8,534 tests — 1.5% of all its MOT tests, against 0.5% across every car in the data. That is 3.0× the national share.
Is this unusual for this model?
| Compared with | What it says |
|---|---|
| Every car in the data | 0.5% of tests record it — this model is 3.0× that share |
| The 183 models compared | 27 of 183, 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, 2.8% of this model's tests recorded it; in 2017, 0.3%. The share has fallen 2.5 points over that time. Worst year 2005 at 2.8%; best 2017 at 0.3%.
| Year | Failures recorded | Tests | Share of tests |
|---|---|---|---|
| 2005 | 75 | 2,722 | 2.8% |
| 2006 | 537 | 35,570 | 1.5% |
| 2007 | 862 | 55,736 | 1.6% |
| 2008 | 1,227 | 77,776 | 1.6% |
| 2009 | 1,007 | 89,936 | 1.1% |
| 2010 | 1,068 | 96,460 | 1.1% |
| 2011 | 857 | 101,280 | 0.8% |
| 2012 | 895 | 99,392 | 0.9% |
| 2013 | 639 | 98,836 | 0.7% |
| 2014 | 365 | 93,608 | 0.4% |
| 2015 | 351 | 122,030 | 0.3% |
| 2016 | 454 | 122,908 | 0.4% |
| 2017 | 148 | 60,266 | 0.3% |
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 £60–£250 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
- Lambda reading outside limits: 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 →