Registration plate lamp inoperative (multiple lamps) on the Citroen C4
Registration plate lamp inoperative (multiple lamps) on the Citroen C4 is recorded on 43,455 tests — 8.6% of all its MOT tests, against 3.2% across every car in the data. That is 2.7× the national share.
Is this unusual for this model?
| Compared with | What it says |
|---|---|
| Every car in the data | 3.2% of tests record it — this model is 2.7× that share |
| The 325 models compared | 20 of 325, highest first |
| The model's own record | 504,935 tests · every year of the C4 → |
A share of tests is not a probability for your car: it counts every Citroen C4 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, 6.6% of this model's tests recorded it; in 2019, 3.5%. The share has fallen 3.1 points over that time. Worst year 2010 at 10.5%; best 2019 at 3.5%.
| Year | Failures recorded | Tests | Share of tests |
|---|---|---|---|
| 2005 | 248 | 3,781 | 6.6% |
| 2006 | 565 | 7,477 | 7.6% |
| 2007 | 2,091 | 22,774 | 9.2% |
| 2008 | 2,862 | 29,461 | 9.7% |
| 2009 | 1,907 | 20,742 | 9.2% |
| 2010 | 2,572 | 24,581 | 10.5% |
| 2011 | 2,596 | 27,675 | 9.4% |
| 2012 | 2,850 | 32,913 | 8.7% |
| 2013 | 4,357 | 48,128 | 9.1% |
| 2014 | 7,907 | 80,801 | 9.8% |
| 2015 | 9,457 | 104,587 | 9.0% |
| 2016 | 4,926 | 64,590 | 7.6% |
| 2017 | 184 | 3,409 | 5.4% |
| 2018 | 348 | 9,461 | 3.7% |
| 2019 | 559 | 16,120 | 3.5% |
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 £5–£20 fitted. It is a job a careful owner can do at home. 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
- Registration plate lamp inoperative (multiple lamps): every model, every year → — the item's own page, with the part guide.
- Citroen C4 MOT pass rate by year → — the model's whole record, and what else it fails on.
- Every Citroen model →