2018 BMW X6 3.0L Diesel · LB18 CJB

The most recent MOT, carried out on 29 December 2025, was passed with no recorded defects, indicating that the vehicle met the statutory safety and emissions standards at that time. Over the preceding three years the record shows a pattern of advisories in early‑2023 and early‑2024 relating to brake disc surface condition and thin inner pads, together with rear‑tyre tread approaching the legal limit, but those items were not classed as failures and have not re‑appeared in the last two tests. This suggests that the owner has addressed the earlier wear points, and the overall maintenance trend is stabilising rather than deteriorating. At eight years old the X6 has logged 108 375 mi, averaging roughly 13 500 mi per annum – a mileage rate well above the typical 8‑10 000 mi per year for a vehicle of this age. The relatively high annual usage points to more aggressive wear on consumables such as brake discs, pads, tyres, suspension components and the drivetrain. It also raises the likelihood of accumulated stress on the adaptive suspension and electronic steering systems that BMW equips on the X6, meaning that any latent faults may become apparent under load or during spirited driving. Prospective buyers should give the braking system a thorough inspection. Measure the front and rear disc thickness against the BMW specification and look for scoring, glazing or rust spots that could indicate impending replacement. Verify that the inner and outer pads have sufficient remaining material and that the calipers move freely without binding or uneven retraction, as a sticking caliper can cause premature disc wear and a pulsating brake pedal. During a test drive listen for any high‑pitched squeal or low‑frequency growl when applying the brakes, feel for a spongy or inconsistent pedal travel, and check that the vehicle pulls straight under braking. Also examine the rear tyres for uneven wear patterns, sidewall cracking or age‑related perishing; even if the tread depth is currently acceptable, tyres older than six years can deteriorate regardless of mileage. Because the car is now eight years old, age‑related checks are essential regardless of mileage. Inspect the 12‑volt battery for corrosion on terminals and test its cranking voltage, as batteries over five years often lose capacity. Verify that all fluid reservoirs – engine oil, coolant, brake fluid and power‑steering fluid – have been topped up and, where service intervals are calendar‑based, consider a complete fluid change to avoid degradation. Examine the suspension bushes, control arm joints and rear sub‑frame for any signs of cracked or hardened rubber, as these can produce clunking noises over bumps. Finally, confirm that the windscreen wipers have been replaced since the 2021 failure; a functional wiper is vital for safety, and worn blades can indicate neglect of routine maintenance.