MOT performance
2003 BMW Z4: MOT pass rate and common failures
Of 5,233 MOT tests on 2003-registered BMW Z4s in 2023–2024 (on average 19.8 years old at test, median 96,549 miles), 66.6% passed first time, 10.2 points lower than the BMW Z4 overall. Allowing for age, mileage and fuel, 2003 BMW Z4s failed 23% less often than comparable cars.
5,233 MOT tests on 2,853 vehicles, 2023–2024 · Source: DVSA (Open Government Licence) · Analysis: 73 Auto
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| Figure | Value | Basis |
|---|---|---|
| First-time pass rate | 66.6% | ±1.3 pts (95%), n = 5,233 |
| All BMW Z4s | 76.9% | n = 70,690 |
| Failures vs similar cars | 0.77× | same age, mileage and fuel = 1.00 |
| Tests with a dangerous defect | 8.1% | n = 5,233 |
| Average age at test | 19.8 years | n = 5,233 |
Where 2003 BMW Z4s fail
| Area | Tests failed on it | vs similar cars |
|---|---|---|
| Brakes | 11.4% | -12% |
| Suspension | 11.3% | -29% |
| Lights, reflectors and electrical | 10.8% | -50% |
| Driver's view of the road | 6.6% | -15% |
| Tyres | 5.8% | -11% |
| Seat belts and airbags | 5.7% | +100% |
| Noise, emissions and leaks | 4.4% | -50% |
| Body, chassis and structure | 2.4% | -72% |
| Road wheels | 0.8% | +93% |
| Steering | 0.6% | -83% |
| Registration plates and VIN | 0.4% | -45% |
Most common failure items
| Item | Area | Share of tests |
|---|---|---|
| SRS malfunction indicator lamp: warning lamp indicates a fault | Seat belts and airbags | 5.41% |
| Rigid brake pipes: excessively corroded | Brakes | 3.44% |
| Tread depth: tread depth below requirements of 1.6mm | Tyres | 3.21% |
| Ball joint: ball joint excessively worn | Suspension | 2.96% |
| Wipers: does not clear the windscreen effectively | Driver's view of the road | 2.81% |
Check a specific 2003 BMW Z4
Enter a UK registration to see that car's own MOT history and what it is likely to cost to own. Your first check is free and shows the vehicle summary and its headline ownership cost. The category-by-category breakdown is part of a paid check.
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About this data. These are MOT test results, not a measure of mechanical reliability: a car's MOT outcome reflects its condition on the day, which depends on how it has been maintained and driven as well as how it was built. Figures cover class 4 vehicles (cars and light vans), normal tests only (retests excluded), outcomes pass, fail and pass after rectification at the station; vehicles at least 2.5 years old at test. Tests from 2023-01-01 to 2024-12-30. “Compared with similar cars” means compared with the national rate for cars of the same age, mileage band and fuel. Contains public sector information licensed under the Open Government Licence v3.0. Makes and models are matched to 73 Auto's vehicle catalogue; tests that can't be matched are left out rather than guessed. See how the MOT figures are produced.