MOT failure data · 2025

SEAT Arona MOT problems

Across every SEAT Arona that failed its 2025 MOT, the defect testers recorded most often was track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt, on 15.17% of failure items. The broadest problem area was brakes at 27.82%. These are recorded defects across the model, not a diagnosis of any one car.

Most common SEAT Arona MOT failures

#	Recorded defect	Area	Share
1	Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt	Steering	15.17%
2	Brake pads less than 1.5 mm thick	Brakes	12.16%
3	Condition has a cut in excess of the requirements deep enough to reach the ply or cords	Tyres	8.03%
4	Tread depth tread depth below requirements of 1.6mm	Tyres	6.97%
5	Brake discs significantly and obviously worn	Brakes	4.94%
6	Condition has ply or cords exposed	Tyres	4.47%
7	Condition has a tear, caused by separation or partial failure of its structure	Tyres	4.06%
8	Service brake performance excessively fluctuating	Brakes	3.55%
9	Track rod end ball joint dust cover insecure so that it no longer prevents the ingress of dirt	Steering	2.82%
10	Coil spring fractured or broken	Suspension	2.57%

Shares are of all recorded failure items for this model, so they sum to less than 100% — a single failed test often records several defects, and the long tail below the top 10 is not shown.

What this means if you are buying one

Use it as a viewing checklist. If you are looking at a SEAT Arona, these are the areas worth inspecting and worth asking about — and worth reading the car's own MOT history for, since a defect that keeps reappearing as an advisory is a better signal than any model-wide average.

The MOT record also has hard limits: it does not check the engine, clutch or gearbox, and it says nothing about outstanding finance, insurance write-off history, stolen markers or whether the mileage is genuine. Our used SEAT Arona buying guide covers what to check beyond the MOT.

Checking a specific SEAT Arona?

Enter its registration for finance, write-off, stolen, mileage and keeper history.

Other SEAT models

SEAT Arona MOT FAQs

What does a SEAT Arona most commonly fail its MOT on?

The single most recorded defect on SEAT Arona cars failing their 2025 MOT was "track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt", appearing on 15.17% of failure items.

Does this mean my SEAT Arona will fail?

No. This is what testers recorded across every SEAT Arona that failed in 2025. It shows where this model tends to need attention, not the condition of any individual car. The SEAT Arona passed 86.16% of its initial tests.

How do I see a specific SEAT Arona's MOT history?

Enter its registration on our free MOT history check to see that car's own test results, advisories and recorded mileages.

Defect counts from the DVSA MOT Anonymised test-item data for 2025 (class 4 initial tests, failure items only — advisories and minor defects excluded), licensed under the Open Government Licence v3.0.