How reliable is the Seat Arosa compared with other cars?

We do not publish a comparison for the Seat Arosa, because the cars of this model that have been tested do not cover a wide enough range of ages and mileages. Its raw pass rate is 56.8% across 1,698 tests, but comparing a raw rate between models mostly ranks them by how new they are rather than how good they are. The failure and advisory patterns further down the page are still drawn from real tests and are worth reading.

What is the most common MOT failure on a Seat Arosa?

The item recorded most often is "The aim of a headlamp is not within limits laid down in the requirements", which appears in 15.2% of failed Seat Arosa tests. Because one failed test can list several items, these shares do not add up to 100%.

What do testers most often warn about on a Seat Arosa?

The most common advisory is "A spring or spring component fractured or seriously weakened", noted on 21.6% of all Seat Arosa tests. An advisory is not a failure: it flags something that will likely need attention before the next test.

What mileage does a Seat Arosa usually have at its MOT?

The average odometer reading recorded at test is 79,751 miles. This is the mileage across all tested examples of every age, not an annual figure, so treat it as a description of the fleet rather than a target for one car.

Are most Seat Arosa models petrol or diesel?

Of the Seat Arosa cars tested, 92% are petrol, 8% are diesel. Fuel type affects which items tend to fail, particularly emissions and exhaust components.

Model reliability file

Seat Arosa MOT pass rate & common failures

From 1,698 recorded MOT tests of the Seat Arosa, published by DVSA.

Data updated 29 July 2026

Quick answer

Across 1,698 MOT tests, 56.8% of Seat Arosa tests ended in a pass. This figure is not adjusted for age or mileage, so it is not a reliability ranking: the Seat Arosa fleet does not yet cover a wide enough spread of ages and distances to compare it fairly against other models. Its most commonly recorded failure is aim of a headlamp is not within limits laid down in the requirements, which appears in 15.2% of failed tests. Cars of this model average 79,751 miles on the odometer when tested.

At a glance

Recorded pass rate

56.8%unadjusted, not comparable1,698 tests

We are not publishing a ranking for the Arosa. The examples tested do not cover a wide enough spread of ages and mileages to compare it fairly, and an unadjusted pass rate mostly sorts models by how recently they were bought rather than how well they were built. The failure and advisory patterns below come from the same 1,698 tests and are worth reading on their own terms.

DVSA recorded wording

Most common failure items

Share of failed Seat Arosa tests in which each item was recorded. One failed test often lists several items, so these do not sum to 100%.

1.The aim of a headlamp is not within limits laid down in the requirements15.2%
91 occurrencesHeadlamp aim incorrect explained
2.A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning14.4%
86 occurrencesLamp not working explained
3.A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc13.9%
83 occurrencesDriveshaft CV joint gaiter split or missing explained
4.Exhaust system leaking or insecure12.2%
73 occurrencesExhaust leaking or insecure explained
5.Wiper blade missing or obviously not clearing the windscreen11.0%
66 occurrencesWiper or washer not working properly explained
6.Service brake efficiency below minimum requirement9.8%
59 occurrencesBraking efficiency below requirement explained
7.A suspension pin, bush or joint excessively worn9.7%
58 occurrencesSuspension arm bush worn explained
8.Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning9.3%
56 occurrencesStop lamp not working explained
9.Lambda coefficient outside the default limits or the range specified by the manufacturer8.5%
51 occurrencesEmissions above the permitted limit explained
10.The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired8.0%
48 occurrencesSuspension mounting corroded or insecure explained

Warnings without a failure

Most common advisories

Share of all Seat Arosa tests carrying each advisory. The denominator differs from the failure list above because an advisory can be issued on a car that passed.

1.A spring or spring component fractured or seriously weakened21.6%
367 testsRoad spring broken or fractured explained
2.Tyre tread depth not in accordance with the requirements21.6%
366 testsTyre worn close to the legal limit explained
3.A tyre seriously damaged19.6%
333 testsTyre damaged or deteriorated explained
4.A suspension pin, bush or joint excessively worn18.1%
307 testsSuspension arm bush worn explained
5.Brake pipe damaged or excessively corroded17.8%
303 testsBrake pipe corroded explained
6.Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users16.0%
271 tests
7.Exhaust system leaking or insecure13.7%
233 testsExhaust leaking or insecure explained
8.Brake disc or drum excessively weakened, insecure or fractured13.7%
232 testsBrake disc worn, pitted or scored explained

What gets tested

The Arosa fleet

Average mileage recorded at test: 79,751
Fuel mix of tested cars: Petrol92.1%
Diesel7.9%

Check a specific Seat Arosa

A model average tells you the pattern. Its own MOT record tells you the car.

Compare within the range

Other Seat models

Seat Ibiza — 66.6% adjusted
Seat Leon — 75.3% adjusted
Seat Arona — 84.2% unadjusted
Seat Ateca — 87.9% unadjusted
Seat Alhambra — 73.2% adjusted
Seat Mii — 74.3% adjusted
All Seat models

Common questions

How reliable is the Seat Arosa compared with other cars?: We do not publish a comparison for the Seat Arosa, because the cars of this model that have been tested do not cover a wide enough range of ages and mileages. Its raw pass rate is 56.8% across 1,698 tests, but comparing a raw rate between models mostly ranks them by how new they are rather than how good they are. The failure and advisory patterns further down the page are still drawn from real tests and are worth reading.
What is the most common MOT failure on a Seat Arosa?: The item recorded most often is "The aim of a headlamp is not within limits laid down in the requirements", which appears in 15.2% of failed Seat Arosa tests. Because one failed test can list several items, these shares do not add up to 100%.
What do testers most often warn about on a Seat Arosa?: The most common advisory is "A spring or spring component fractured or seriously weakened", noted on 21.6% of all Seat Arosa tests. An advisory is not a failure: it flags something that will likely need attention before the next test.
What mileage does a Seat Arosa usually have at its MOT?: The average odometer reading recorded at test is 79,751 miles. This is the mileage across all tested examples of every age, not an annual figure, so treat it as a description of the fleet rather than a target for one car.
Are most Seat Arosa models petrol or diesel?: Of the Seat Arosa cars tested, 92% are petrol, 8% are diesel. Fuel type affects which items tend to fail, particularly emissions and exhaust components.

How this was worked out

Method and limits

Figures come from the DVSA anonymised MOT testing dataset, published under the Open Government Licence. Only class 4 initial tests are counted: retests are excluded so a car appears once, and abandoned tests are excluded entirely. No adjusted rate is shown because this model's tested examples do not cover enough of the national age and mileage range for standardisation to mean anything.

An MOT measures whether a car met a legal standard on the day. It is not a breakdown record, a service history or a running-cost estimate, and a pass rate is a property of a fleet rather than a prediction about one car.