2006 BMW 520 2.0L Diesel · LA06 VYW

The 2006 BMW 520 presents a mixed maintenance picture following its most recent MOT activity in August 2024, when the odometer read 173,062 miles. The vehicle failed that initial test due to a cluster of electrical and braking faults, including an inoperative nearside rear stop lamp, a non-compliant offside front indicator, a parking brake efficiency shortfall, and a severely deteriorated offside rear outer CV boot. A retest on the same day at 173,056 miles resulted in a pass, suggesting the immediate failures were addressed. However, the tester still flagged a corroded front brake pipe, worn front brake discs, a persistent oil leak, and perishing on the nearside front tyre. The maintenance trend is therefore stable but incomplete; the car passes its current test yet carries several advisories that point to deferred attention on braking and driveline components. The recorded mileage of 173,062 miles over roughly twenty years equates to approximately 8,650 miles per year, which is typical for a vehicle of this age and class. The history shows a steady progression from 160,587 miles in September 2022 to 167,196 miles in September 2023, an increase of 6,609 miles over twelve months, and then a further 5,866 miles to the August 2024 test. There are no alarming gaps or sudden spikes in accumulation, indicating consistent rather than intermittent use. The record itself is relatively sparse, with only five entries spanning two years, so a buyer cannot rely on a dense service history to fill in the mechanical narrative between tests. A buyer inspecting this vehicle in person should focus first on the front braking system. The tester noted worn front brake discs across both the 2023 and 2024 tests, and in 2024 specifically identified a front brake pipe that was corroded and obscured by grease or other material. That combination suggests the braking circuit has not received thorough attention and warrants a close check for pitting, wall thickness, and fluid condition. The persistent oil leak, flagged in both 2022 and 2024 as not yet excessive, should be traced to its source, whether that is a valve cover gasket, crankshaft seal, or oil cooler fitting, since even minor leaks can degrade rubber hoses and contaminate drive belts over time. The severely deteriorated offside rear outer CV boot from the 2024 failure is another area of concern. Even though the retest passed, a split or degraded boot allows grease to escape and grit to enter the joint, accelerating wear on the constant velocity joint itself. A buyer should inspect the joint for play or clicking on full lock and check whether the boot has been replaced or merely noted. The perishing nearside front tyre from the same test raises questions about basic tyre care and age-related degradation, so all four tyres should be examined for sidewall cracking and uneven wear. Finally, the parking brake efficiency failure earlier in August 2024, though resolved for the retest, implies the handbrake mechanism, cables, or rear brake adjusters may have been marginal; a hill-hold test and a check of lever travel would confirm whether the repair was lasting or temporary.