2015 BMW Z4 MOT pass rate, common failures & what to check
In 2025, 81.9% of BMW Z4s first used in 2015 passed their MOT first time, against 71.9% for all cars first used in 2015. Across 4,799 Z4 first tests from 2023 to 2025, the most common failure areas were tyres, road wheels and suspension.
This page analyses first MOT tests for BMW Z4s first used in 2015 (all trims grouped): 2021 to 2025 for the pass-rate trend, and 2023 to 2025 for the failure and advisory analysis — plus what is worth checking before you buy one.
Data: DVSA anonymised MOT tests to December 2025 · Calculated by SortedCars · Updated October 2026
How the 2015 BMW Z4 MOT pass rate has changed
Share of first tests passed in each year, Z4s first used in 2015 against all cars first used in 2015 (any make or fuel; not adjusted for mileage, fuel or use). In 2025 the Z4 figure was 10.0 points higher.
View this chart as a table
| Test year | 2015 Z4 | All cars first used 2015 | Z4 first tests |
|---|---|---|---|
| 2021 | 84.9% | 79.7% | 1,645 |
| 2022 | 85.2% | 77.8% | 1,626 |
| 2023 | 85.7% | 75.5% | 1,604 |
| 2024 | 84.7% | 73.5% | 1,608 |
| 2025 | 81.9% | 71.9% | 1,587 |
Common 2015 BMW Z4 MOT failures
Share of the 762 failed first tests (2023–2025) with at least one failure in each area. A test can fail in more than one area, so the shares add up to more than 100%.
Most common failure items
| DVSA failure item | Share of failed first tests | Tests |
|---|---|---|
| Tyre condition: has ply or cords exposed | 18.4% | 140 |
| Road wheel condition: fractured | 16.3% | 124 |
| Tyre condition: has a cut in excess of the requirements deep enough to reach the ply or cords | 10.4% | 79 |
| Coil spring: fractured or broken | 10.0% | 76 |
| Tread depth: below requirements of 1.6mm | 8.0% | 61 |
Item names are DVSA’s own wording. 2023–2025 combined.
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Typical repair costs for common MOT failures
Typical UK garage prices for the job, not for a Z4 in particular, and not a quote.
| Failure item | Typical job | Typical UK price | Usual range |
|---|---|---|---|
| Coil spring: fractured or broken | Coil spring replacement | £248 | £175–£400 |
From published UK repair-cost guides, checked September 2026. Only jobs with a published typical price are shown.
What to check on a 2015 BMW Z4 before buying
The three areas where failed first tests most often had a fault, 2023–2025.
- Tyres. Worth checking the tread depth across the whole width of each tyre, and the sidewalls for cuts, cracks and bulges.
- Wheels. Worth looking at each wheel rim for cracks, buckles and kerb damage.
- Suspension. Worth looking behind the front wheels with a torch at the coil springs, and listening for knocks over bumps on the test drive.
Common 2015 BMW Z4 MOT advisories
Advisories are points the tester noted that did not fail the car. Most common on 2015 Z4s, as a share of all 4,799 first tests, 2023–2025.
| DVSA advisory item | Share of first tests | Tests |
|---|---|---|
| Tread depth: worn close to legal limit/worn on edge | 12.4% | 595 |
| Brake discs: worn, pitted or scored, but not seriously weakened | 8.1% | 387 |
| Tyre condition: slightly damaged/cracking or perishing | 7.3% | 350 |
| Brake pads: wearing thin | 6.1% | 291 |
| Tyre condition: has a cut but not deep enough to reach the ply or cords | 1.8% | 86 |
Questions about the 2015 BMW Z4 MOT
What is the MOT pass rate of a 2015 BMW Z4?
In 2025, 81.9% of Z4s first used in 2015 passed their MOT first time, against 71.9% for all cars first used in 2015. A car fixed during the test counts as a fail.
What does a 2015 Z4 most often fail its MOT on?
Tyres (in 45.8% of failed first tests, 2023–2025), road wheels (17.6%) and suspension (15.6%). The single most common item was “Tyre condition: has ply or cords exposed” (18.4%).
How often does a 2015 BMW Z4 fail its MOT?
In 2025, 18.1% of first tests on Z4s first used in 2015 did not pass first time: 16.4% failed, and a further 1.7% had a fault fixed during the test (counted as a fail here). Across 2023–2025, 762 of 4,799 first tests did not pass first time.
What are the most common 2015 BMW Z4 MOT advisories?
“Tread depth: worn close to legal limit/worn on edge” (on 12.4% of first tests, 2023–2025), “Brake discs: worn, pitted or scored, but not seriously weakened” (8.1%), “Tyre condition: slightly damaged/cracking or perishing” (7.3%), “Brake pads: wearing thin” (6.1%) and “Tyre condition: has a cut but not deep enough to reach the ply or cords” (1.8%).
Is a 2015 BMW Z4 reliable?
An MOT pass rate shows what failed at the test, not how reliable a car is. For this group of cars the first-time pass rate went from 84.9% in 2021 to 81.9% in 2025. For one particular car, its own MOT history matters more than the average.
Other cars first used in 2015
The most-tested cars from the same year. Each page uses the same method.
2015 Ford Fiesta MOT statistics · 2015 Vauxhall Corsa MOT statistics · 2015 Ford Focus MOT statistics · 2015 Volkswagen Golf MOT statistics · 2015 Nissan Qashqai MOT statistics
Checking a specific 2015 Z4?
The numbers above cover every Z4 first used in 2015 and tested in Great Britain. Our free check shows the actual MOT history, mileage record and tax status of the one you are looking at.
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