2015 Mazda 3 2.2L Diesel · EY15 AAZ

Across the four MOT tests recorded between March 2024 and August 2025, this Mazda 3 presents an unusual pattern that warrants careful interpretation: two pass certificates and two failure certificates are all dated within an eighteen-month window, and crucially every single entry — both passes and failures — shows no defects or advisories whatsoever. This is highly atypical for a vehicle covering over one hundred thousand miles. The most recent test on 22 August 2025 was recorded as both a pass and a failure on the same date, which generally indicates the vehicle was presented, failed on an item that was then rectified and re-tested within the permitted working hours, and subsequently issued a pass certificate. Without the specific failure reason recorded against that entry, the underlying defect that triggered the failure cannot be confirmed from the MOT history alone. The two-year run of clean advisory records is nevertheless noteworthy: no wear items such as brake pads, discs, tyres, suspension bushes, coil springs, exhaust components, or corroded brake lines have been flagged, suggesting either very recent replacement of consumables or genuinely minimal wear at the time of test. With a recorded mileage of 101,100 miles spread across eleven years, this Mazda 3 averages approximately 9,191 miles per year, which sits broadly in line with typical UK usage for a vehicle of this age and class. There are no extended gaps between MOT tests indicative of long periods off the road, and the test intervals of roughly six months between the 2024 entries and the cluster around mid-2024 to mid-2025 suggest reasonably continuous use. However, the absence of mileage progression detail between individual tests in the data provided means it is not possible to confirm whether mileage accumulation has been steady or whether there have been periods of higher-intensity use. At this overall odometer reading, mechanical wear on clutch components, dual-mass flywheel (if diesel), turbocharger (if applicable), suspension top mounts, wheel bearings, and engine mountings should be considered likely regardless of what the MOT has recorded. Given the conspicuous absence of any advisory notes across the entire recorded history, the inspection approach for a prospective buyer should pivot away from chasing documented defects and instead concentrate on the wear items that might be approaching the threshold between pass and fail at present. On a test drive, listen for clonking or knocking from the front suspension over speed humps and uneven surfaces, which would indicate worn anti-roll bar drop links, control arm bushes, or bottom ball joints. The brake pedal should feel firm and progressive; any sponginess, excessive travel, or judder under braking may point to worn discs or corroded caliper slide pins that were not flagged previously but could be close to requiring attention. Steering should remain precise and self-centring without vibration or pulling to either side, and the clutch (if manual) should engage smoothly without slipping under acceleration in higher gears. Underneath the vehicle, a thorough visual examination is strongly recommended, particularly of the subframe mounting points, rear axle beam, and suspension arm attachment areas, as structural corrosion advisories are common on Mazdas of this vintage once they reach higher mileages. Inspect the exhaust system for blue smoke on start-up which could indicate valve stem seal wear or turbo oil leaks, and check for any dampness around the engine and gearbox seams suggesting gasket or oil seal seepage. Because the MOT history gives no indication of which components have been recently replaced, it would be prudent to confirm receipts for any recent major work such as timing chain replacement, brake disc and pad renewal, or clutch fitting. The same-day pass-and-fail result on 22 August 2025 is the single most important point to clarify with the seller before purchase, as understanding exactly what caused the original failure — and verifying it has been properly resolved with parts retained for inspection — is essential to establishing the current mechanical condition of this vehicle.