Chassis corroded on the Mazda Mx-5
Chassis corroded on the Mazda Mx-5 is recorded on 4,642 tests — 1.7% of all its MOT tests, against 0.5% across every car in the data. That is 3.4× the national share.
Is this unusual for this model?
| Compared with | What it says |
|---|---|
| Every car in the data | 0.5% of tests record it — this model is 3.4× that share |
| The 193 models compared | 34 of 193, highest first |
| The model's own record | 275,662 tests · every year of the Mx-5 → |
A share of tests is not a probability for your car: it counts every Mazda Mx-5 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, 2.3% of this model's tests recorded it; in 2011, 0.2%. The share has fallen 2.1 points over that time. Worst year 2004 at 2.7%; best 2011 at 0.2%.
| Year | Failures recorded | Tests | Share of tests |
|---|---|---|---|
| 2000 | 457 | 19,836 | 2.3% |
| 2001 | 321 | 13,994 | 2.3% |
| 2002 | 534 | 22,788 | 2.3% |
| 2003 | 715 | 29,576 | 2.4% |
| 2004 | 616 | 23,196 | 2.7% |
| 2005 | 576 | 23,680 | 2.4% |
| 2006 | 486 | 46,154 | 1.1% |
| 2007 | 352 | 54,952 | 0.6% |
| 2008 | 219 | 38,822 | 0.6% |
| 2009 | 118 | 29,830 | 0.4% |
| 2010 | 116 | 32,810 | 0.3% |
| 2011 | 54 | 23,582 | 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 £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
- Chassis corroded: every model, every year → — the item's own page, with the part guide.
- Mazda Mx-5 MOT pass rate by year → — the model's whole record, and what else it fails on.
- Every Mazda model →