2011 BMW 520 2.0L Diesel · LM11 NUN

The vehicle most recently passed its MOT on 19 February 2026, but the overall maintenance trend has shifted from stable to concerning. Following several years of clean passes, the vehicle suffered a significant failure just two weeks prior to its latest certificate. The recording of dangerous tyre tread depths alongside major engine oil leaks and emissions failures suggests a recent and notable lapse in preventative maintenance. While these issues were rectified to secure the pass, the transition from a clean history to multiple critical defects indicates a worsening trajectory in the vehicle's upkeep. The recorded mileage of 109,873 miles over approximately 15 years represents an average annual usage of roughly 7,325 miles. This is a typical profile for a luxury saloon of this age, suggesting the car has been used regularly without being excessively overworked or left to deteriorate from prolonged standing. At this mileage and age, the vehicle is in a phase where major wear-and-tear components, particularly rubber suspension bushings, engine seals, and drivetrain consumables, will require systematic replacement to maintain roadworthiness. Prospective buyers must carefully scrutinize the engine bay for any residual evidence of the recent excessive oil leak. Even though the vehicle passed its subsequent test, oil leaks can be persistent or indicative of failing gaskets and seals that may recur. During a test drive, pay close attention to the exhaust emissions and engine idle; any visible smoke or irregular idling could suggest that the previous emissions failure was a symptom of a deeper issue with the particulate filter or fuel system. Furthermore, inspect the current tyres to ensure they are of a reputable brand and have consistent tread depth, as the previous dangerous failures suggest a disregard for tyre health. Given the historical advisories regarding pitted front discs and wearing rear pads, a thorough inspection of the braking system is essential. Listen for any grinding or shuddering under braking, which would indicate warped discs or worn pads. At 15 years of age, you should also verify the service records for timing chain health and automatic transmission fluid intervals, as these are critical maintenance points for this BMW model. Finally, check the condition of the suspension bushes for perishing and ensure there is no evidence of structural corrosion on the chassis or sills, which can often develop in vehicles of this vintage.