2010 BMW 520 2.0L Diesel · DM06 SLM

The most recent DVSA MOT entry for the 2010 BMW 520 is dated 7 December 2021 and shows a contradictory outcome – a pass recorded alongside a fail on the same day, with no defects listed for either result. This suggests a possible clerical error rather than a genuine failure, and because no specific advisory or fault was noted, there is no concrete evidence of deteriorating condition from the MOT data alone. Consequently the maintenance trend cannot be definitively judged as improving or worsening; the absence of recorded defects does imply that, at least at the time of testing, the vehicle met the statutory safety and emissions standards. At 204 717 miles the car has accumulated roughly 12 800 miles per annum over its sixteen‑year life, a usage rate well above the average for a saloon of this age. Such mileage indicates substantial wear on all consumable components – engine oil seals, timing chain or belt, transmission clutches, drive shafts, suspension bushings, and brake rotors will have experienced accelerated fatigue. The high annual average also raises the likelihood of uneven tyre wear if the vehicle has been regularly driven on varied road surfaces, and it suggests that any major service intervals (such as timing chain replacement, coolant flush, and brake pad changes) may already have been reached or exceeded. Prospective buyers should therefore conduct a thorough visual and tactile inspection of the tyre tread and sidewalls, looking for depth below 1.6 mm, cupping, or cracking that can arise from age and heat cycles even if the tread appears acceptable. Examine the suspension for any play in the front lower arms, worn rubber bushings, or leaking shock absorbers, and listen for clunks or rattles when the car is driven over bumps. The brake system warrants close attention: check disc thickness for scoring or excessive wear, ensure pads are not glazed, and verify that the calipers move freely without binding – a common issue on high‑mileage BMWs that can cause brake shudder or uneven braking. Inspect the engine bay for any oil, coolant, or power‑steering fluid leaks, and confirm that the coolant is a bright, clear colour rather than rusty or milky, indicating the need for a flush. During a test drive, be alert for any abnormal engine noises such as ticking or knocking that could signal worn valve train components, and monitor the transmission for harsh shifts or delayed engagement that may point to worn clutch packs or gearbox wear. Pay particular attention to steering feel – any vibration, pull, or excessive play could denote worn steering rack bushings or a failing power‑steering pump. Finally, have the 12‑volt battery load‑tested and request evidence of recent service stamps, especially for oil changes, timing chain or belt service, and brake fluid replacement, as these time‑based items are critical for a vehicle with this mileage and age.