Pass rate
94.2%
Above average — 0.6 pts behind the 94.8% that cars this age and mileage manage.
Across 52 recorded tests.
Typical repair bill £41–£91
2023 BMW M340I MOT pass rate
- 2023
- typical 17,337 mi
Only 52 tests of this exact model and year are in the DVSA data, below the 100 we ask for before a page goes in the index. The figures are still shown, because they are the only ones there are.
Most common fault
Tyres
77.8% of faults · 19.8% nationally
mostly tread below the limit, cuts and sidewall bulges.
Which year to buy
- Best 2023 94.2% pass · this year
- Avoid 2020 89.9% pass
Across the 5 years on record, a spread of 4.3 points. See every year →
- First-attempt pass
- 94.0%
- Typical mileage
- 17k mi
The 2023 BMW M340I MOT pass rate is 94.2% of its MOT tests — about what its age and mileage predict. Tyres is the biggest single reason it fails, at 77.8% of what testers record.
Check your postcode
MOT pass rates are national — type your postcode to see how BMW M340I does in your corner of the country.
Expert verdict
Tyres: 3.9× the national share
Tyres make up 77.8% of everything recorded on the 2023 BMW M340i, against 19.8% nationally — 58.0 points above. Check all four tyres yourself, including the inner shoulders, and look at the date stamp — a tyre can pass on tread and still be six years old.
- When it fails, it costs. Only 0% of this model’s typical repairs come in under £30 in parts — the failures here tend to be the kind that need a garage rather than a bulb.
- Based on a small sample. 52 tests back this page. That is enough to publish and to index, not enough to treat the decimal places as precise — read the pattern, not the second digit.
Written from this page's own figures: fault shares against the national composition, the like-for-like pass rate, and the priced repair list. How these are worked out
Watching a BMW M340I? Get an email when these numbers change .
How does the 2023 BMW M340I compare?
Cars of this age and mileage average 94.8%, so this figure is 0.6 points behind what its age and mileage predict. On a first attempt, before any retests, the figure drops to 94.0%. The median 2023 BMW M340I in this dataset had covered 17,337 mi.
The single most recorded failure item is "Has a bulge, caused by separation or partial failure of its structure", noted on 5.77% of tests.
- 52 recorded tests behind this page.
- 94.2% overall pass rate, 94.0% on a first attempt.
- Across every year of the BMW M340I, the average is 90.6% — best year 2023 (94.2%), worst 2020 (89.9%).
Figures count every completed test on this vehicle-year in the dataset, including retests. See methodology for the exact definition.
This page's data
- Tests analysed
- 52
- Typical mileage (median)
- 17,337 mi
- Make and model
- BMW M340I
- Updated
- 2026-11-05
Source: DVSA anonymised MOT test data (2023–2025), OGL v3.0.
Top part to budget for
Tyres
Usually a DIY or independent-garage job.
Does mileage affect the M340I MOT pass rate?
Pass rate by odometer reading. Bar lengths start at 85% so small gaps stay visible.
What fails a 2023 M340I
Everything a tester recorded on this vehicle, grouped into the inspection sections that produced it. The notch on each bar is the national share, so you can see at a glance whether this car is unusual or just ordinary.
A test can record several items, so these percentages do not add up to 100%. The exact strings, with prices, are in the full DVSA record at the bottom of this page.
Before your test
Three checks worth doing on a 2023 M340I
These are not generic tips — they are the faults recorded most often on this exact model, rewritten as things you can check yourself. All three take about ten minutes and cost nothing.
-
Check the lights 1.9% of tests
“headlamp aim too high”
Switch everything on and walk round the car: both headlamps on dip and main, every indicator, both brake lights, reverse, fog and the two number-plate lamps. A bulb is a few pounds and a five-minute job.
Shares are the proportion of tests on this vehicle that recorded the item, so they overlap: one test can record several.
What it costs to get a 2023 M340I through its MOT
Across the 2 items that are recorded most often on this model, the average repair comes to £41–£91 — and 0% of those repairs are parts that cost under £30.
- Average repair across the 2 common items
- £41–£91
- Cheapest common item: headlamp aim too high
- £30–£80
- Dearest common item: has a bulge, caused by separation or partial…
- £45–£95
- Common items a careful owner can do at home
- 50%
- Repairs that still cost under £30
- 0%
Estimates from typical UK parts prices, weighted by how often each item appears in 52 MOT tests on this vehicle. They exclude diagnostics, retest fees and garage labour where the part is a DIY fit, and they are not figures from the DVSA dataset. Older and higher-mileage examples cost more than the average. How these estimates are built → · All MOT repair costs → · Cheapest cars to put through a test →
Every year of the M340I, side by side
5 model years on record, from 2019 to 2023. Across them the pass rate runs from 89.9% to 94.2% — a spread of 4.3 points. The bar under each year is the item that failed it most often.
- 2019 90.4% has a bulge, caused by separation…
- 2020 89.9% has a cut in excess of the…
- 2021 91.2% has a bulge, caused by separation…
- 2022 90.9% has a bulge, caused by separation…
- 2023 94.2%has a bulge, caused by separation…
Colour is the pass rate on a fixed scale, so a block means the same thing on any model. Each year links to its own page with the full fault breakdown.
Compare the 2023 BMW M340I with another year
The raw pass rate mostly measures age. The year comparison adds the like-for-like figure, the mileage bands and the repair bill.
Other 2023 cars with a similar record
- Polestar Polestar 94.6%
- Kia Niro 95.5%
- Tesla Model Y 92.9%
- Toyota Corolla 95.7%
- Mercedes-Benz Eqe 96.5%
- Ford Puma 96.5%
Closest pass rates among 2023 cars with at least 2,000 tests, so a small sample cannot flatter itself into the list. See the full rankings: best and worst MOT pass rates.
The full DVSA record for the 2023 BMW M340I 2 failure items · 3 advisories · 3 inspection categories · mileage brackets · all of it in the page, none of it above the fold
Every inspection category
Shares of the 9 individual items recorded on this vehicle, and the same share across all cars nationally. A single test can record several items, so a row is not a percentage of tests.
| Category | Items | This car | Nationally | Difference |
|---|---|---|---|---|
| Tyres | 7 | 77.80% | 19.76% | +58.04 |
| Lamps, reflectors and electrical equipment | 1 | 11.10% | 12.21% | −1.11 |
| Noise, emissions and leaks | 1 | 11.10% | 5.52% | +5.58 |
The exact failure items, in the tester's words
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Has a bulge, caused by separation or partial failure of its structure Tyres | Major | 5.8% | £45–95 |
| Headlamp aim too high Lamps, reflectors and electrical equipment | Rectified | 1.9% | £30–80 |
Severity is as recorded: Major and Dangerous fail the test outright; Minor and Advisory do not. Costs are estimates from typical UK parts prices — see how they are built.
What testers noted without failing the car
Advisories are the early warnings — the same parts a year or two before they fail. Reading them is how you tell a car that has been maintained from one that has been patched.
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Tread depth below requirements of 1.6mm Tyres | Advisory | 5.8% | £45–95 |
| Other leaks leak harmful to the environment or a risk to other road users Noise, emissions and leaks | Advisory | 1.9% | £60–250 |
| Tread depth tread pattern not visible over the whole tread area when minimum depth required is 1.0mm Tyres | Advisory | 1.9% | £45–95 |
Pass rate by mileage
| Mileage | Tests | Pass rate | Median odometer |
|---|---|---|---|
| 0-30k | 48 | 93.8% | 16,603 mi |
| 30-60k | 4 | 100.0% | 36,908 mi |
Source: 52 recorded tests on this vehicle-year. Every row above is recomputed from the same DVSA extract as the rest of the page — see the methodology.
2023 M340I MOT questions
What is the MOT pass rate for a 2023 BMW M340I?
94.2% of the 52 2023 BMW M340I tests in this dataset passed, against a national average of 94.8% for cars first used in 2023. First-attempt pass rate: 94.0%.
What are the most common MOT failures on a 2023 BMW M340I?
The three most recorded items are has a bulge, caused by separation or partial failure of its structure (5.77%), headlamp aim too high (1.92%). Percentages are the share of tests on this vehicle that recorded the item.
Does mileage affect the 2023 BMW M340I MOT pass rate?
Yes. Cars under 30,000 miles passed 93.8% of the time, falling to 100.0% for those over 120,000 miles. The median 2023 BMW M340I in this dataset had covered 17,337 mi.