The picture
Asx: above-average pass rates, with caveats
Across 32,584 MOT tests, the Asx returns 80.8% first-time pass — above the UK fleet average. The single most-logged Major fail is a torn steering gaiter. A corroded brake pipe and brake pads worn below 1.5 mm round out the top three. Average tested mileage sits at 69,657, 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
1,100 occurrences · 3.4% of tests
- 02
Brake pipe damaged or excessively corroded
1,078 occurrences · 3.3% of tests
- 03
a brake lining or pad worn below 1.5mm
967 occurrences · 3.0% of tests
- 04
A suspension joint dust cover severely deteriorated
941 occurrences · 2.9% of tests
- 05
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources
849 occurrences · 2.6% of tests
- 06
Tyre tread depth not in accordance with the requirements
751 occurrences · 2.3% of tests
- 07
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
574 occurrences · 1.8% of tests
- 08
Wiper blade missing or obviously not clearing the windscreen
453 occurrences · 1.4% of tests
- 09
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
429 occurrences · 1.3% of tests
- 10
Wiper blade defective
402 occurrences · 1.2% 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 5 failures
£288–£765
If every one of this Asx'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
H7 / W21W bulb pack
A spare-bulb kit lives in the boot. Test morning is not the time to find your stop-lamp's gone.
Search Amazon UK
Buying or keeping a Asx?
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 Asx 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.