2005 BMW Z4 2.2L Petrol · DV05 SCZ

MOT outcome – May 2026 The car passed its most recent MOT on 28 May 2026, but the test recorded a number of advisory defects. The most serious items are a fault on the supplementary restraint system (SRS) warning lamp, worn front brake discs on both sides, an oil leak that is not excessive, and a corroded rear sub‑frame (though not yet structurally weakened). In addition, both rear registration‑plate lamps are out and the off‑side direction indicator is flashing too quickly. Recurring mechanical pattern Across the last three years the MOT data show a clear build‑up of brake‑disc wear (recorded in 2024, 2026 and again in the 2026 failure), a persistent minor oil leak, and recurring lighting faults (rear plate lamps and indicator flash rate). The SRS warning appeared only in the 2026 failure, suggesting a new electronic or sensor issue. The rear sub‑frame corrosion was first noted in the May 2026 pass and has not been flagged before, indicating the start of a structural‑corrosion trend. Trend assessment The defect list has grown rather than receded. In 2023 and 2025 the MOTs were clean, but from 2024 onward the car began to accumulate brake, oil‑leak and lighting problems, culminating in a failure in May 2026. Although the car still passed, the pattern is clearly worsening , not stable. If the underlying causes (brake wear, oil leak source, corrosion) are not addressed, more serious failures are likely in the near future.