Photo: Vauxford, CC BY-SA 4.0
BMW
5,241 MOT tests analysed. sits above the UK fleet average — here's where M340i Xdrive Mhev Autos pass, fail, and end up on the retest sheet.
That's 14.5 points above the UK fleet average across our 1,984 tracked models — a confident result.
Pass
92.0%
Pass-after-fix
1.0%
Fail
6.7%
Avg miles
29,513
Pass + Pass-after-fix + Fail = 100%
Petrol cars first registered from January 2006 meet Euro 4 — compliant in London ULEZ, Birmingham CAZ, Bristol CAZ, and Glasgow LEZ.
Performance by cohort
2 year bands · 5,241 tests
Pass rate drops 3.8 points across the cohorts — recent M340i Xdrive Mhev Auto examples are doing worse than the early cars at the same tested age.
Pass
95.6%
Fail
3.5%
PRS
0.4%
Avg mileage at test
30,020 mi
Pass
91.9%
Fail
6.8%
PRS
1.0%
Avg mileage at test
29,490 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.
The picture
Across 5,241 MOT tests, the M340i Xdrive Mhev Auto returns 92.0% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is a seriously damaged tyre. A seriously damaged tyre and windscreen damage round out the top three. Average tested mileage sits at 29,513, 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
116 occurrences · 2.2% of tests
A tyre seriously damaged
90 occurrences · 1.7% of tests
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
38 occurrences · 0.7% of tests
Tyre tread depth not in accordance with the requirements
29 occurrences · 0.6% of tests
Windscreen or window excessively tinted but not adversely affecting driver's view
22 occurrences · 0.4% of tests
A tyre cords visible or damaged
19 occurrences · 0.4% of tests
Wiper blade defective
16 occurrences · 0.3% of tests
A tyre has a lump, bulge or tear caused by separation or partial failure of its structure. This includes any lifting of the tread rubber
13 occurrences · 0.2% of tests
Any fracture or welding defect on a wheel
11 occurrences · 0.2% of tests
Steering rack gaiter or ball joint dust cover damaged or deteriorated
10 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.
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Year-band analysis
First-time MOT pass rate split by registration band. A 3.8-point gap between bands means the year you buy BMW M340i Xdrive Mhev Auto has a real effect on what turns up at the garage.
Best band to buy
95.6%
2018–2020 registration
the 2018–2020 band climbs to 95.6% — a 3.8-point improvement. Failures here are mostly wear items: has a cut in excess of the…, 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
91.9%
2021+ registration
On the 2021-on band, the data shows a 91.9% pass rate against a fleet average of 95.6% 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 29,490 miles — high-mileage wear items are a recurring theme.
Best band to buy: 2018-2020 (95.6% first-time pass). Worst band to avoid: 2021+ (91.9% pass). That's a 3.8-point spread across 5,013 older tests and 228 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 M340i 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.