2010 BMW 120 2.0L Diesel · ST10 UWB

The most recent MOT recorded on 20 March 2026 resulted in a failure due to missing rear wheel fixings on both sides, while the test also carried a pass rating for the overall vehicle with advisories on tyre tread depth, brake disc condition and front‑left tyre edge wear. Over the last two years the pattern has moved from a series of advisory‑only passes in 2024 and 2025 to a genuine failure in February 2026 for a severely corroded rear sub‑frame, and now a failure for missing wheel fixings. This indicates a clear deterioration in structural condition and mounting integrity rather than a stabilising maintenance regime. At 135,024 mi the car averages roughly 8,400 mi per annum, which is typical for a 2010 model. The mileage record does not reveal any long periods of inactivity that would suggest severe ageing of rubber components, but the steady accumulation of miles combined with the recent structural findings means that wear‑related items such as suspension bushings, steering linkages and drivetrain bearings are likely to be approaching the end of their service lives. The relatively modest annual usage does not offset the risk of fatigue on components that have been exposed to corrosion and high‑stress cycles. Prospective buyers should give particular attention to the rear sub‑frame, which the February 2026 MOT flagged as “corroded and seriously weakened”. Inspect the underside for any rust‑spotted cracks, especially around the rear mounting points, and check that the under‑seal coating is intact. During a test drive feel for any clunk, squeak or flex when applying throttle or braking, especially over bumps, as these can signal sub‑frame flex or failing bushings. Verify that the rear wheel fixings are present, correctly torqued and that the wheel studs are not stripped; a missing fixing can lead to wheel wobble or loss of control. The brake discs on both front and rear are already noted as pitted and scored; examine the disc surface for deep scoring, uneven wear or excessive run‑out, and listen for a high‑pitched squeal or pulsation under hard braking, which would indicate that replacement is imminent. In addition to the structural concerns, the tyres on all four corners are reported as being close to the legal tread limit and showing edge wear, so a full tyre set replacement is advisable before committing to purchase. Check the sidewalls for cracking or perishing, a common issue on older high‑performance tyres that can lead to sudden failure. The rear shock absorbers showed a light mist of oil in 2024, suggesting possible seal wear; test for excessive bounce or uneven damping on a rough surface. Given the age of the vehicle, inspect the 12 V battery for sulphation, verify coolant, brake and gearbox oil levels and consider a full fluid change if service stamps are absent. Finally, confirm that the steering rack, tie‑rod ends and suspension bushes are free of play and that the steering column does not exhibit any binding, as these items are prone to degradation after a decade of service.