Suspension arm corroded on the Mazda Mx-5

Suspension arm corroded on the Mazda Mx-5 is recorded on 10,449 tests — 3.8% of all its MOT tests, against 1.4% across every car in the data. That is 2.7× the national share.

Is this unusual for this model?

Compared with	What it says
Every car in the data	1.4% of tests record it — this model is 2.7× that share
The 252 models compared	49 of 252, 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, 5.6% of this model's tests recorded it; in 2014, 0.4%. The share has fallen 5.1 points over that time. Worst year 2001 at 6.3%; best 2014 at 0.4%.

Year	Failures recorded	Tests	Share of tests
2000	1,102	19,836	5.6%
2001	879	13,994	6.3%
2002	1,388	22,788	6.1%
2003	1,713	29,576	5.8%
2004	1,153	23,196	5.0%
2005	990	23,680	4.2%
2006	636	46,154	1.4%
2007	707	54,952	1.3%
2008	487	38,822	1.3%
2009	352	29,830	1.2%
2010	427	32,810	1.3%
2011	220	23,582	0.9%
2012	182	21,006	0.9%
2013	112	20,714	0.5%
2014	79	18,880	0.4%

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 £35–£85 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

Suspension arm 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 →