Lambda reading outside limits on the Vauxhall Zafira

Lambda reading outside limits on the Vauxhall Zafira is recorded on 8,477 tests — 1.1% of all its MOT tests, against 0.5% across every car in the data. That is 2.2× 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 2.2× that share
The 183 models compared	44 of 183, highest first
The model's own record	764,910 tests · every year of the Zafira →

A share of tests is not a probability for your car: it counts every Vauxhall Zafira 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 2001, 2.3% of this model's tests recorded it; in 2016, 0.3%. The share has fallen 2.0 points over that time. Worst year 2001 at 2.3%; best 2015 at 0.3%.

Year	Failures recorded	Tests	Share of tests
2001	64	2,785	2.3%
2002	164	11,666	1.4%
2003	277	19,352	1.4%
2004	352	33,642	1.1%
2005	446	43,120	1.0%
2006	716	62,478	1.1%
2007	1,263	93,826	1.4%
2008	1,209	110,208	1.1%
2009	739	76,098	1.0%
2010	582	130,628	0.5%
2011	312	99,944	0.3%
2012	413	122,956	0.3%
2013	613	208,086	0.3%
2014	621	203,420	0.3%
2015	258	104,926	0.3%
2016	216	84,684	0.3%

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 £60–£250 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

Lambda reading outside limits: every model, every year → — the item's own page, with the part guide.
Vauxhall Zafira MOT pass rate by year → — the model's whole record, and what else it fails on.
Every Vauxhall model →