The picture
M135i Xdrive Auto: a strong MOT record by UK norms
Across 5,210 MOT tests, the M135i Xdrive Auto returns 90.5% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is a seriously damaged tyre. Tyre tread under the limit and a seriously damaged tyre round out the top three. Average tested mileage sits at 23,355, 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 tyre seriously damaged
144 occurrences · 2.8% of tests
- 02
Tyre tread depth not in accordance with the requirements
96 occurrences · 1.8% of tests
- 03
A tyre seriously damaged
93 occurrences · 1.8% of tests
- 04
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
74 occurrences · 1.4% of tests
- 05
A tyre cords visible or damaged
51 occurrences · 1.0% of tests
- 06
Wiper blade defective
44 occurrences · 0.8% of tests
- 07
a brake lining or pad worn below 1.5mm
36 occurrences · 0.7% of tests
- 08
Wiper blade missing or obviously not clearing the windscreen
34 occurrences · 0.7% of tests
- 09
Number plate does not conform to the specified requirements
25 occurrences · 0.5% of tests
- 10
A tyre seriously damaged
25 occurrences · 0.5% 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 2 failures
£120–£190
If every one of this M135i Xdrive Auto'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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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 M135i Xdrive Auto?
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 M135i Xdrive Auto 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.