2018 BMW 420 2.0L Diesel · N88 STX

The BMW 420 passed its most recent MOT on 30 April 2026 at 43,989 miles with no defects recorded, confirming current roadworthiness. The maintenance trend shows an improvement after the January 2026 test, where rear inner tyre wear and a rear oil leak from the differential seal were noted; those issues appear resolved by the April test, indicating remedial work was carried out. Mileage accumulates at roughly 5,500 miles per year, a low figure for an eight‑year‑old vehicle, reflecting light overall use. The interval from 41,195 miles on 1 January 2026 to 43,989 miles on 30 April 2026 added 2,794 miles in just three months, a sharp spike that suggests a period of heavier usage or a possible mileage discrepancy during that time. Earlier intervals were more gradual, supporting the view of generally modest annual mileage. A buyer should inspect the rear tyres for edge wear and verify tread depth against the legal limit, as the January test flagged wear close to the limit. Oil staining around the rear differential seal should be checked for any seepage, given the oil leak noted. Also examine rear brake discs and callipers for binding or uneven wear, assess suspension bushes for corrosion, and look for rust around the rear bulkhead and underbody to confirm structural integrity that the clean MOT history may not fully reveal. If the tyre wear and differential seal are addressed, the low mileage and clean recent MOT indicate a well‑maintained example. A thorough pre‑purchase inspection is recommended to validate the condition of the flagged components and ensure no hidden deterioration.