The picture
Arona: a strong MOT record by UK norms
Across 42,841 MOT tests, the Arona returns 87.1% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is a torn steering gaiter. Brake pads worn below 1.5 mm and a missing steering gaiter round out the top three. Average tested mileage sits at 28,247, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.
Top ten reasons for rejection.
- 01
Steering rack gaiter or ball joint dust cover damaged or deteriorated
1,359 occurrences · 3.2% of tests
- 02
a brake lining or pad worn below 1.5mm
957 occurrences · 2.2% of tests
- 03
Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc
801 occurrences · 1.9% of tests
- 04
A tyre seriously damaged
653 occurrences · 1.5% of tests
- 05
A tyre cords visible or damaged
535 occurrences · 1.2% of tests
- 06
Tyre tread depth not in accordance with the requirements
480 occurrences · 1.1% of tests
- 07
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
477 occurrences · 1.1% of tests
- 08
A tyre seriously damaged
433 occurrences · 1.0% of tests
- 09
Excessive fluctuation in brake effort through each wheel revolution.
386 occurrences · 0.9% of tests
- 10
Brake disc or drum significantly and obviously worn
333 occurrences · 0.8% of tests
Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.
Worst-case fix budget · top 4 failures
£300–£735
If every one of this Arona's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →
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Build your own retest budget.
Tools that pre-empt a retest.
Picked against this car's top failure patterns. Affiliate links to Amazon UK — we earn a small cut at no cost to you. Disclosed up-front, doesn't shape the data.
Item 01 · Amazon UK
Brake pad measurement gauge
Testers fail pads under 1.5mm. A wear gauge tells you if you've got two months left or two weeks.
Search Amazon UK
Item 02 · Amazon UK
Digital tyre-tread depth gauge
Five quid for a gauge beats £150 for a retest. UK MOT minimum is 1.6mm — most testers fail anything below 2mm to be safe.
Search Amazon UK
Owner reports · Honest John
What owners actually report.
Verbatim faults logged by owners on honestjohn.co.uk over recent years. We didn't summarise — these are the words people typed in.
What's good
The Arona's a good choice - good to drive and easy to get comfortable in. Don't buy one until you've tried the new Ford Puma, though. The Puma's better to drive and more practical.
Buying or keeping a Arona?
Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.
If you own a Arona and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.