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MOT failures by make

BMW MOT failures for “Wipers: does not clear the windscreen effectively”

BMW cars failed their MOT on “Wipers: does not clear the windscreen effectively” in 1.00% of 3,694,719 tests in 2023–2024 (36,912 tests) — 51% less often than comparable cars of the same age, mileage and fuel, which would have failed on it in about 2.02% of tests. It is the number 9 most common failure item on BMWs.

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Data to 2024-12-30 · Page updated 2026-09-28 · Publisher: 73 Auto

BMW tests failing on it
1.00%
36,912 of 3,694,719 tests, 2023–2024
Comparable cars
2.02%
national rate at the same age, mileage and fuel
Observed ÷ expected
0.49×
73 Auto analysis · rank #9 for BMW

How unusual this is for the make

Across all MOT failures, BMWs fail 24% less often than comparable cars. On this item the gap is 0.65× narrower than that overall level, so it is a genuine BMW pattern rather than a reflection of how often the make fails in general. It is a major defect in the driver's view of the road part of the test. Nationally it appears on 2.11% of MOT tests.

BMW models and “Wipers: does not clear the windscreen effectively”

The BMW M4 is least affected (0.13× comparable cars); the BMW X2 most (1.43×). Not every model follows the make: the pattern is concentrated in some models. Model rows compare with cars of the same age and fuel.

BMW models: share of MOT tests failing on Wipers: does not clear the windscreen effectively
ModelTestsFailed on itvs similar cars
BMW X234,9122.95%1.43×
BMW X433,2001.96%1.08×
BMW X3204,7861.87%0.96×
BMW 64020,2091.44%0.88×
BMW Z324,2642.13%0.72×
BMW Z470,6901.77%0.68×
BMW X630,7760.97%0.55×
BMW 5 Series428,9451.10%0.55×
BMW 1 Series795,7201.02%0.52×
BMW X5180,9511.08%0.52×
BMW X1207,5720.83%0.46×
BMW 3 Series1,007,3600.91%0.42×
BMW i343,4970.73%0.40×
BMW 7 Series38,0230.79%0.38×
BMW 6 Series10,4650.55%0.27×
BMW 2 Series233,7160.49%0.26×
BMW M331,5440.67%0.24×
BMW 4 Series206,8480.41%0.23×
BMW M424,1130.26%0.13×
Models with at least 10,000 MOT tests and 30 expected failures on this item. 2023–2024 DVSA data; 73 Auto analysis.

By age at test

The difference is most pronounced at 3-4 years old: 0.69% of BMW tests against 2.25% for comparable cars.

BMW: share of MOT tests failing on Wipers: does not clear the windscreen effectively by age band, against comparable cars
Age (years)BMW testsBMWComparable cars
3-4548,6990.69%2.25%
5-6614,1510.67%1.72%
7-8602,4450.92%1.59%
9-10478,6580.91%1.71%
11-12365,5541.08%1.88%
13-15395,0771.39%2.18%
16+514,7411.67%2.94%

Other BMW MOT faults that stand out

Limitations

Official data: DVSA's anonymised MOT results (2023–2024), class 4 initial tests, cars at least 2.5 years old. 73 Auto analysis: the comparison rate applies the national rate of this item for each test's own age, mileage band and fuel to the BMW tests. An MOT result reflects maintenance, mileage and how a car is used as well as its design, so this is not a measure of which make is most reliable. The wording of the defect is DVSA's.

Has this BMW failed on it before?

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UK number plate or 17-character VIN

Where these figures come from

Figures labelled as 73 Auto estimates are our own analysis of these sources, set out in the methodology and data sources. To report a factual error, see corrections.