Ball joint dust cover no longer prevents the ingress of dirt on the Jaguar Xj
Ball joint dust cover no longer prevents the ingress of dirt on the Jaguar Xj is recorded on 1,881 tests — 2.7% of all its MOT tests, against 0.7% across every car in the data. That is 3.9× the national share.
Is this unusual for this model?
| Compared with | What it says |
|---|---|
| Every car in the data | 0.7% of tests record it — this model is 3.9× that share |
| The 266 models compared | 8 of 266, highest first |
| The model's own record | 68,454 tests · every year of the Xj → |
A share of tests is not a probability for your car: it counts every Jaguar Xj 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, 0.5% of this model's tests recorded it; in 2015, 0.2%. The share has fallen 0.3 points over that time. Worst year 2008 at 3.4%; best 2015 at 0.2%.
| Year | Failures recorded | Tests | Share of tests |
|---|---|---|---|
| 2000 | 17 | 3,196 | 0.5% |
| 2003 | 342 | 11,544 | 3.0% |
| 2004 | 360 | 11,256 | 3.2% |
| 2005 | 206 | 7,740 | 2.7% |
| 2006 | 233 | 9,126 | 2.5% |
| 2007 | 193 | 8,538 | 2.3% |
| 2008 | 106 | 3,136 | 3.4% |
| 2010 | 106 | 4,632 | 2.3% |
| 2011 | 107 | 5,247 | 2.0% |
| 2012 | 55 | 6,928 | 0.8% |
| 2013 | 37 | 3,905 | 0.9% |
| 2014 | 17 | 3,483 | 0.5% |
| 2015 | 7 | 3,113 | 0.2% |
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 £18–£45 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
- Ball joint dust cover no longer prevents the ingress of dirt: every model, every year → — the item's own page, with the part guide.
- Jaguar Xj MOT pass rate by year → — the model's whole record, and what else it fails on.
- Every Jaguar model →