Austin
Mini Mayfair
2,540 MOT tests analysed. lands in the middle of the pack — here's where Mini Mayfairs pass, fail, and end up on the retest sheet.
That's 1.8 points below the UK fleet average across our 1,984 tracked models — buyers should expect more first-time fails than the typical UK car.
Pass
75.8%
Pass-after-fix
3.0%
Fail
20.2%
Avg miles
51,519
Pass + Pass-after-fix + Fail = 100%
Petrol cars registered before January 2006 are typically pre-Euro 4 — subject to daily charges in London ULEZ, Birmingham CAZ, and Glasgow LEZ. Bristol CAZ does not charge petrol cars. Daily charges if driven in the zone: London £12.50 · Birmingham £8.00 .
The picture
Mini Mayfair: middle-of-the-pack on first-time pass
Across 1,161 MOT tests, the Mini Mayfair returns 74.8% first-time pass — below the UK fleet average. The single most-logged Major fail is emissions levels exceed default limits. A lamp out and headlamp aim out of spec round out the top three. Average tested mileage sits at 52,095, 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.
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- 01
Emissions levels exceed default limits
114 occurrences · 4.5% of tests
- 02
Steering rack gaiter or ball joint dust cover damaged or deteriorated
80 occurrences · 3.1% of tests
- 03
A transmission shaft constant velocity joint boot severely deteriorated
60 occurrences · 2.4% of tests
- 04
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
60 occurrences · 2.4% of tests
- 05
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
56 occurrences · 2.2% of tests
- 06
A transmission shaft constant velocity joint boot missing or no longer prevents the ingress of dirt etc
55 occurrences · 2.2% of tests
- 07
Emissions levels exceed default limits
51 occurrences · 2.0% of tests
- 08
A suspension joint dust cover severely deteriorated
48 occurrences · 1.9% of tests
- 09
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.
45 occurrences · 1.8% of tests
- 10
An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning
44 occurrences · 1.7% 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 Mini Mayfair?
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 Mini Mayfair 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.