Integral structure corroded on the Toyota Corolla
Integral structure corroded on the Toyota Corolla is recorded on 6,204 tests — 1.7% of all its MOT tests, against 0.6% across every car in the data. That is 2.8× the national share.
Is this unusual for this model?
| Compared with | What it says |
|---|---|
| Every car in the data | 0.6% of tests record it — this model is 2.8× that share |
| The 203 models compared | 47 of 203, highest first |
| The model's own record | 366,022 tests · every year of the Corolla → |
A share of tests is not a probability for your car: it counts every Toyota Corolla 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, 1.7% of this model's tests recorded it; in 2009, 0.8%. The share has fallen 0.9 points over that time. Worst year 2004 at 2.0%; best 2009 at 0.8%.
| Year | Failures recorded | Tests | Share of tests |
|---|---|---|---|
| 2000 | 147 | 8,548 | 1.7% |
| 2001 | 214 | 14,998 | 1.4% |
| 2002 | 410 | 27,680 | 1.5% |
| 2003 | 733 | 42,164 | 1.7% |
| 2004 | 1,127 | 56,220 | 2.0% |
| 2005 | 1,418 | 85,066 | 1.7% |
| 2006 | 1,355 | 93,794 | 1.4% |
| 2007 | 444 | 33,930 | 1.3% |
| 2008 | 275 | 24,302 | 1.1% |
| 2009 | 73 | 9,416 | 0.8% |
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
- Integral structure corroded: every model, every year → — the item's own page, with the part guide.
- Toyota Corolla MOT pass rate by year → — the model's whole record, and what else it fails on.
- Every Toyota model →