2018 BMW 420 2.0L Diesel · AF68 SHV

The most recent MOT test conducted on 03 June 2026 resulted in a pass, but the presence of new advisories indicates a recent shift towards component degradation. While the vehicle has maintained a consistent passing record since 2021, the maintenance trend is currently moving from a clean state into a period of required remedial work. The transition from no recorded defects in 2022 to multiple tyre and brake advisories in 2023, followed by the current advisories regarding shock absorber misting and brake disc condition, suggests that the vehicle is entering a phase of life-cycle maintenance where consumable parts and suspension components are reaching the end of their reliable service life. With 80,162 miles recorded over approximately eight years, the vehicle has averaged roughly 10,000 miles per year. This represents typical, moderate usage for a premium German saloon, suggesting the car has been driven regularly enough to avoid the specific pitfalls of long-term stagnation, such as seized calipers or excessive brake disc corrosion. However, this mileage level is significant enough that wear on suspension bushes, coil springs, and drivetrain seals should be closely monitored. The mileage is consistent with a vehicle that has seen steady road use, meaning mechanical components are likely experiencing standard age-related fatigue rather than extreme high-mileage stress. Prospective buyers should pay close attention to the recent advisories regarding the nearside rear shock absorber and the front brake discs. The light misting of oil on the shock absorber is an early sign of seal failure; while not an immediate failure point, it indicates that the unit will eventually leak more heavily, leading to compromised damping and potentially causing an uneven ride or body roll. During a test drive, listen for any knocking or thudding sounds when traversing uneven surfaces, which could indicate the shock has lost its structural integrity. Furthermore, the advisory regarding pitted or scored front brake discs suggests surface degradation or heavy use. You should check for any brake shudder or vibration through the pedal or steering wheel when braking from higher speeds, as this often indicates disc thickness variation or warping. The history of tyre advisories, particularly those noting inner edge wear, is a significant indicator of potential wheel alignment issues. Repeatedly wearing tyres on the inner edges suggests that the camber or toe settings are out of specification, which can lead to premature tyre replacement and poor handling. I strongly recommend a professional four-wheel alignment check before purchase to ensure the suspension geometry is correct. Additionally, given the previous advisory regarding the supplementary restraint system warning lamp in 2023, you must verify that the airbag warning light extinguishes correctly after the engine is started and that no faults remain in the SRS system. Finally, ensure the service history supports the replacement of fluids and filters, as the steady mileage accumulation necessitates strict adherence to manufacturer service intervals to protect the engine and turbocharger components.