The picture
Justy: middle-of-the-pack on first-time pass
Across 824 MOT tests, the Justy returns 73.2% first-time pass — below the UK fleet average. The single most-logged Major fail is a split CV-joint boot. The strength or continuity of the load bearing and worn suspension bushes round out the top three. Average tested mileage sits at 69,197, 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
A transmission shaft constant velocity joint boot severely deteriorated
58 occurrences · 7.0% of tests
- 02
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 repaired
37 occurrences · 4.5% of tests
- 03
A suspension pin, bush or joint excessively worn
36 occurrences · 4.4% of tests
- 04
Brake pipe damaged or excessively corroded
32 occurrences · 3.9% of tests
- 05
Headlamp reflector or lens slightly defective
31 occurrences · 3.8% of tests
- 06
Steering rack gaiter or ball joint dust cover damaged or deteriorated
25 occurrences · 3.0% of tests
- 07
Tyre tread depth not in accordance with the requirements
24 occurrences · 2.9% of tests
- 08
Lambda coefficient outside the default limits or the range specified by the manufacturer
24 occurrences · 2.9% of tests
- 09
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
22 occurrences · 2.7% of tests
- 10
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
21 occurrences · 2.5% 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 3 failures
£130–£410
If every one of this Justy'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 →
Try the calculator
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.
Buying or keeping a Justy?
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 Justy 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.