2017 BMW 320 2.0L Petrol · OY17 XUX

A pattern of brake wear running ahead of pad life expectations is the defining mechanical story of this 2017 BMW 320, with both rear and front pads recorded below the 1.5 mm dangerous threshold across consecutive tests. The earliest flag appears at the 2022 test as an advisory noting the offside front outer pads wearing thin, progressing to a dangerous failure on the offside front pads and an illegal offside front tyre in March 2023, followed by a dangerous offside rear pad failure just a year later in March 2024. The 2025 test returned clean on brakes but recorded an output shaft seal oil leak as an advisory, and the most recent pass on 26 March 2026 was recorded with no defects at all, suggesting that the brake-related issues have been rectified. While the latest pass is unblemished, the trajectory of front and rear pad wear within short intervals indicates that caliper slide pins, pad wear sensors, and disc condition should be inspected closely, as aggressive pad consumption on a 320 of this mileage can point to binding calipers or drivers who favour spirited driving. Recorded mileage of 93,091 across nine years equates to an average of roughly 10,343 miles per year, which sits close to the typical annual accumulation for a vehicle of this age and usage profile. The MOT history shows consistent annual testing from 2021 through 2026 with no extended gaps off the road, supporting a picture of regular use rather than long periods of standing. A modest, consistent annual mileage of this level generally allows the engine, transmission, and drivetrain to remain properly warmed through regular operation, reducing the risk of internal corrosion, stale oils, and seized components. That said, the recorded wear on consumables over the last four years is consistent with active rather than gentle use, and a higher than expected rate of brake and tyre wear may reflect repeated short journeys, motorway driving, or a driving style that loads the offside axle disproportionately. From a buyer inspection standpoint, the most pressing area to evaluate is the braking system end-to-end, given the documented pad wear pattern. With the car cold, listen for any scraping or metallic squeal from the offside front and rear corners and check whether the car pulls to one side under steady braking, which can indicate a binding caliper or uneven pad transfer. Inspect both front discs for an obvious stepped lip on the outer edge and for any bluish heat discolouration, as repeated heavy braking can glaze the friction surface and reduce efficiency. On the road, the pedal should feel firm and progressive; any sponginess, excessive travel, or judder through the steering wheel under braking would warrant immediate investigation of the discs, caliper slides, and hydraulic system. The output shaft seal oil leak flagged in 2025 is a secondary but noteworthy concern, particularly on a rear-wheel drive 320 drivetrain. On inspection, look for fresh oil residue on the underside of the gearbox bellhousing and the rear of the engine block, and check the transmission fluid level and condition if accessible. Under load, listen for any whining or humming from the rear differential area that intensifies with speed, which could suggest the leak has been long-standing and the internals are running low on lubrication. The nearside rear tyre inner edge wear advisory in 2025 also warrants a check of the rear wheel alignment, as uneven inner-edge wear on a 320 frequently points to worn rear suspension bushes, trailing arms, or toe misalignment rather than simple tyre ageing. Finally, verify that the windscreen chips recorded in 2023 and 2024 have not progressed into cracking, particularly in zone A directly ahead of the driver, as a chip that grows could quickly turn a minor defect into an MOT failure.