The picture
Sunny: middle-of-the-pack on first-time pass
Across 761 MOT tests, the Sunny returns 70.0% first-time pass — below the UK fleet average. The single most-logged Major fail is the strength or continuity of the load bearing. A split CV-joint boot and a missing CV-joint boot round out the top three. Average tested mileage sits at 81,236, 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
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
86 occurrences · 11.3% of tests
- 02
A transmission shaft constant velocity joint boot severely deteriorated
45 occurrences · 5.9% of tests
- 03
A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc
40 occurrences · 5.3% of tests
- 04
Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced
28 occurrences · 3.7% of tests
- 05
The strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a 'prescribed area') is significantly reduced or inadequately repaired
26 occurrences · 3.4% of tests
- 06
Brake pipe damaged or excessively corroded
24 occurrences · 3.2% of tests
- 07
Wiper blade missing or obviously not clearing the windscreen
22 occurrences · 2.9% of tests
- 08
Brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle.
21 occurrences · 2.8% of tests
- 09
Significant brake effort recorded with no brake applied indicating a binding brake
21 occurrences · 2.8% of tests
- 10
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources
20 occurrences · 2.6% 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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Buying or keeping a Sunny?
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 Sunny 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.