Pass rate
Above average — 5.2 pts ahead of the 94.8% that cars this age and mileage manage.
Across 58 recorded tests.
Only 58 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.
Pass rate
Above average — 5.2 pts ahead of the 94.8% that cars this age and mileage manage.
Across 58 recorded tests.
Most common fault
Tyres
66.7% of faults · 19.8% nationally
mostly tread below the limit, cuts and sidewall bulges.
Which year to buy
Across the 20 years on record, a spread of 24.5 points. See every year →
The 2023 BMW Z4 MOT pass rate is 100.0% of its MOT tests — 5.2 points ahead of what its age and mileage predict. Tyres is the biggest single reason it fails, at 66.7% of what testers record.
MOT pass rates are national — type your postcode to see how BMW Z4 does in your corner of the country.
Expert verdict
Tyres make up 66.7% of everything recorded on the 2023 BMW Z4, against 19.8% nationally — 46.9 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.
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 Z4? Get an email when these numbers change .
Cars of this age and mileage average 94.8%, so this figure is 5.2 points ahead of what its age and mileage predict. On a first attempt, before any retests, the figure drops to 100.0%. The median 2023 BMW Z4 in this dataset had covered 12,232 mi.
No individual failure item was recorded often enough to list.
Figures count every completed test on this vehicle-year in the dataset, including retests. See methodology for the exact definition.
Source: DVSA anonymised MOT test data (2023–2025), OGL v3.0.
Service parts
Typically a garage job — get quotes before committing.
Pass rate by odometer reading. Bar lengths start at 92% so small gaps stay visible.
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.
20 model years on record, from 2003 to 2023. Across them the pass rate runs from 75.5% to 100.0% — a spread of 24.5 points. The bar under each year is the item that failed it most often.
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.
The raw pass rate mostly measures age. The year comparison adds the like-for-like figure, the mileage bands and the repair bill.
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.
Shares of the 3 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 | 2 | 66.70% | 19.76% | +46.94 |
| Road Wheels | 1 | 33.30% | 0.75% | +32.55 |
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 |
|---|---|---|---|
| Badly distorted Road Wheels | Advisory | 1.7% | £20–55 |
| Has a cut in excess of the requirements deep enough to reach the ply or cords Tyres | Advisory | 1.7% | £45–95 |
| Tread depth below requirements of 1.6mm Tyres | Advisory | 1.7% | £45–95 |
| Mileage | Tests | Pass rate | Median odometer |
|---|---|---|---|
| 0-30k | 55 | 100.0% | 12,054 mi |
| 30-60k | 3 | 100.0% | 31,456 mi |
Source: 58 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.
100.0% of the 58 2023 BMW Z4 tests in this dataset passed, against a national average of 94.8% for cars first used in 2023. First-attempt pass rate: 100.0%.
Not enough item-level records were available for this vehicle.
Yes. Cars under 30,000 miles passed 100.0% of the time, falling to 100.0% for those over 120,000 miles. The median 2023 BMW Z4 in this dataset had covered 12,232 mi.