2015 BMW X5 3.0L Diesel · AF65 ABU

Corrosion is the dominant theme in the MOT record, with repeated advisories for rear sub‑frame, front and rear anti‑roll bars and lower suspension arms from 2023 onward, and a single failure in October 2023 that also cited corrosion on brake‑hose ferrules. The most recent test in November 2025 passed without any recorded defects, indicating that the vehicle has not accrued new MOT‑significant faults since the 2024 test, which added tyre‑wear advisories and a severely deteriorated ball‑joint dust cover. The overall trajectory suggests a pattern of surface rust that has not yet progressed to structural weakness, but it remains the key mechanical risk. At 128,716 mi the car averages roughly 11,700 mi per year, a mileage rate that sits comfortably within normal usage for a 2015 model. The MOT history shows no prolonged gaps between tests, implying the vehicle has been driven consistently rather than sitting idle for extended periods. This steady accumulation of miles aligns with the observed wear on suspension components and tyres, and it means consumables such as bushings, joints and brake hoses are likely approaching the point where proactive replacement should be considered. When inspecting the suspension, pay particular attention to the lower arms and anti‑roll bars for any signs of rust‑induced cracking or looseness. On a drive, listen for clunking or knocking over bumps, feel for excessive play in the steering column, and check that the vehicle tracks straight without a pull to one side. The severely deteriorated ball‑joint dust cover on the off‑side front suspension arm should be examined for metal fatigue; any wobble when the wheel is rocked by hand would warrant immediate attention. Additionally, verify that the brake pedal feels firm and that there is no sponginess, which could indicate advancing corrosion on the front and rear brake‑hose ferrules noted in the 2023 failure. The rear inner tyres were flagged as close to the legal limit in 2024, so a thorough tyre inspection is essential. Look for uneven tread wear, especially on the inner edges, and confirm that sidewall integrity is intact. If the tyres are near the minimum tread depth, replacement will be necessary for legal compliance and safe handling. Finally, the ball‑joint dust cover condition and any visible corrosion on brake hoses should be cross‑checked for leaks or fluid seepage; a visual inspection of the brake fluid reservoir and a test of braking performance under moderate deceleration will help confirm that the braking system remains reliable despite the historic advisories.