Photo: Vauxford, CC BY-SA 4.0
BMW
4,912 MOT tests analysed. sits above the UK fleet average — here's where M340d Xdrive Mhev Autos pass, fail, and end up on the retest sheet.
That's 13.6 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
91.1%
Pass-after-fix
1.2%
Fail
7.3%
Avg miles
35,702
Pass + Pass-after-fix + Fail = 100%
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Performance by cohort
2 year bands · 4,912 tests
Pass rate is broadly flat across the cohorts — new and old M340d Xdrive Mhev Auto examples track each other at the test bay.
Pass
91.7%
Fail
6.5%
PRS
1.4%
Avg mileage at test
39,495 mi
Pass
91.0%
Fail
7.4%
PRS
1.2%
Avg mileage at test
34,996 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.
The picture
Across 4,912 MOT tests, the M340d Xdrive Mhev Auto returns 91.1% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is a seriously damaged tyre. Windscreen damage and a seriously damaged tyre round out the top three. Average tested mileage sits at 35,702, 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.
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A tyre seriously damaged
76 occurrences · 1.5% of tests
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
74 occurrences · 1.5% of tests
A tyre seriously damaged
66 occurrences · 1.3% of tests
A tyre cords visible or damaged
38 occurrences · 0.8% of tests
Tyre tread depth not in accordance with the requirements
36 occurrences · 0.7% of tests
Wiper blade defective
21 occurrences · 0.4% of tests
A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
16 occurrences · 0.3% of tests
Engine MIL illuminated indicating a malfunction
14 occurrences · 0.3% of tests
Steering rack gaiter or ball joint dust cover damaged or deteriorated
13 occurrences · 0.3% of tests
Number plate does not conform to the specified requirements
12 occurrences · 0.2% 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 M340d Xdrive Mhev 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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Build your own retest budget.
Year-band analysis
First-time MOT pass rate split by registration band. Pass rates barely move across bands here, so the year you buy BMW M340d Xdrive Mhev Auto makes little measurable difference to MOT outcomes.
Best band to buy
91.7%
2018–2020 registration
the 2018–2020 band climbs to 91.7% — a 0.7-point improvement. Failures here are mostly wear items: damaged but not adversely affecting driver's view, has a bulge, caused by separation or… — the structural issues that drag down older examples don't appear in the top-10 for this band.
Band to be cautious about
91.0%
2021+ registration
On the 2021-on band, the data shows a 91.0% pass rate against a fleet average of 91.7% on the newer band. The main culprits logged at test: has a bulge, caused by separation or…, has a cut in excess of the…, and damaged but not adversely affecting driver's view. Average mileage on test for this band is 34,996 miles — high-mileage wear items are a recurring theme.
Best band to buy: 2018-2020 (91.7% first-time pass). Worst band to avoid: 2021+ (91.0% pass). That's a 0.7-point spread across 4,142 older tests and 770 newer ones — year of build makes a material difference on this model.
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.
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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 an M340d Xdrive Mhev 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.