The picture
Unclassified: middle-of-the-pack on first-time pass
Across 2,004 MOT tests, the Unclassified returns 73.7% first-time pass — below the UK fleet average. The single most-logged Major fail is windscreen damage. A number-plate lamp out and a weak handbrake round out the top three. Average tested mileage sits at 92,914, 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
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
92 occurrences · 4.6% of tests
- 02
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources
87 occurrences · 4.3% of tests
- 03
Parking brake efficiency below minimum requirement
75 occurrences · 3.7% of tests
- 04
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
53 occurrences · 2.6% of tests
- 05
A transmission shaft constant velocity joint boot severely deteriorated
48 occurrences · 2.4% of tests
- 06
A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc
43 occurrences · 2.1% of tests
- 07
Wiper blade defective
36 occurrences · 1.8% of tests
- 08
A suspension pin, bush or joint excessively worn
35 occurrences · 1.7% of tests
- 09
Tyre tread depth not in accordance with the requirements
34 occurrences · 1.7% of tests
- 10
Brake pipe damaged or excessively corroded
29 occurrences · 1.4% 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.
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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 Unclassified?
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 Unclassified 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.