Headlamp lens slightly defective on the Mercedes-Benz Clk
Headlamp lens slightly defective on the Mercedes-Benz Clk is recorded on 3,888 tests — 3.7% of all its MOT tests, against 0.9% across every car in the data. That is 4.1× the national share.
Is this unusual for this model?
| Compared with | What it says |
|---|---|
| Every car in the data | 0.9% of tests record it — this model is 4.1× that share |
| The 251 models compared | 28 of 251, highest first |
| The model's own record | 104,027 tests · every year of the Clk → |
A share of tests is not a probability for your car: it counts every Mercedes-Benz Clk 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 2000, 4.2% of this model's tests recorded it; in 2009, 1.7%. The share has fallen 2.5 points over that time. Worst year 2002 at 5.3%; best 2009 at 1.7%.
| Year | Failures recorded | Tests | Share of tests |
|---|---|---|---|
| 2000 | 162 | 3,892 | 4.2% |
| 2001 | 190 | 4,815 | 4.0% |
| 2002 | 316 | 5,933 | 5.3% |
| 2003 | 551 | 10,958 | 5.0% |
| 2004 | 779 | 14,997 | 5.2% |
| 2005 | 741 | 14,994 | 4.9% |
| 2006 | 364 | 12,359 | 3.0% |
| 2007 | 414 | 14,306 | 2.9% |
| 2008 | 182 | 10,130 | 1.8% |
| 2009 | 189 | 11,322 | 1.7% |
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–£25 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
- Headlamp lens slightly defective: every model, every year → — the item's own page, with the part guide.
- Mercedes-Benz Clk MOT pass rate by year → — the model's whole record, and what else it fails on.
- Every Mercedes-Benz model →