Component mounting: prescribed area excessively corroded on the Subaru Impreza
Component mounting: prescribed area excessively corroded on the Subaru Impreza is recorded on 3,179 tests — 5.8% of all its MOT tests, against 1.1% across every car in the data. That is 5.3× the national share.
Is this unusual for this model?
| Compared with | What it says |
|---|---|
| Every car in the data | 1.1% of tests record it — this model is 5.3× that share |
| The 236 models compared | 18 of 236, highest first |
| The model's own record | 54,707 tests · every year of the Impreza → |
A share of tests is not a probability for your car: it counts every Subaru Impreza 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, 4.1% of this model's tests recorded it; in 2010, 1.0%. The share has fallen 3.2 points over that time. Worst year 2000 at 4.1%; best 2010 at 1.0%.
| Year | Failures recorded | Tests | Share of tests |
|---|---|---|---|
| 2000 | 246 | 5,964 | 4.1% |
| 2001 | 243 | 6,116 | 4.0% |
| 2002 | 272 | 7,230 | 3.8% |
| 2003 | 459 | 11,600 | 4.0% |
| 2004 | 392 | 11,844 | 3.3% |
| 2005 | 518 | 15,096 | 3.4% |
| 2006 | 388 | 11,530 | 3.4% |
| 2007 | 368 | 12,574 | 2.9% |
| 2008 | 152 | 7,144 | 2.1% |
| 2009 | 71 | 5,224 | 1.4% |
| 2010 | 53 | 5,480 | 1.0% |
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
- Component mounting: prescribed area excessively corroded: every model, every year → — the item's own page, with the part guide.
- Subaru Impreza MOT pass rate by year → — the model's whole record, and what else it fails on.
- Every Subaru model →