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Linkage ball joint dust cover: ball joint dust cover no longer prevents the ingress of dirt

This one item accounted for 0.2% of every MOT test carried out in Great Britain, and it is among the commonest faults on 62 different model-and-year combinations. Here is where it clusters, and what it looks like on a car you are standing in front of.

Push down firmly on each corner — press on the body directly above the wheel, not the middle of a panel — and watch it settle

How to spot it before you buy

Push down firmly on each corner — press on the body directly above the wheel, not the middle of a panel — and watch it settle

It should rebound once and stop; continued bouncing means worn shock absorbers (£150–400 a pair). Press only on the strong point over the wheel — bonnets and some wings are plastic or aluminium and can dent or crack if leaned on.

The models it hits hardest

Ranked by how often the fault came up as a share of that model's own tests, not by raw count — a fault in 8% of a small model's tests says more about that model than one in 3% of the Fiesta's. A linked row has a page of its own.

ModelYearsShare of its tests
Volkswagen Fox 2010–2013 4.5%
Volkswagen Eos 2010–2013 3.8%
Volkswagen Touran 2010–2013 3.7%
Nissan Elgrand 2014–2017 3.6%
SEAT Altea 2010–2013 3.2%
Volkswagen Jetta 2010–2013 3.2%
Nissan Elgrand 2018–2021 3.1%
Audi A3 2010–2013 2.9%
Mercedes-Benz B-Class 2010–2013 2.9%
Volkswagen Scirocco 2010–2013 2.9%
SEAT Alhambra 2010–2013 2.9%
Skoda Octavia 2010–2013 2.8%
Volkswagen Golf 2010–2013 2.7%
Mitsubishi Outlander 2010–2013 2.7%
Renault Modus 2010–2013 2.7%
Mitsubishi ASX 2010–2013 2.6%
Volkswagen Sharan 2010–2013 2.6%
Volkswagen Passat 2010–2013 2.5%
Volkswagen Caddy 2010–2013 2.5%
Toyota Estima 2010–2013 2.5%

Showing the worst 20 of 62 affected model-and-year combinations. The full dataset is downloadable below.

Which manufacturers it clusters on

Pooled across each make's whole range, so this is a fact about the brand rather than about one of its models. Makes with at least 50,000 tests.

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See whether the car you're looking at has this on record

Type the registration and you get that car's own MOT history — every advisory and every failure, including whether this one has already come up.

Source: DVSA anonymised MOT tests and results, 2023. Class 4 standard tests only. Contains public sector information licensed under the Open Government Licence v3.0.