2011 Lexus CT 1.8L Hybrid electric · GY61 RGX

A pattern of progressive structural corrosion is emerging on this Lexus CT, evidenced most clearly by the January 2026 test where the front subframe and rear axle were both flagged with advisories for corrosion that, while not yet deemed seriously weakened, have now entered the MOT record. The rear suspension component mounting prescribed areas on both sides were also noted as corroded but not considered excessive, building on a 2023 advisory that described rear suspension corrosion as not seriously affecting its strength. This trajectory suggests the underside of the vehicle is oxidising progressively year by year, and although it has not yet crossed the threshold for failure, the rate of progression warrants careful physical inspection, particularly of the subframe mounting points, axle beam, and suspension arm attachment areas where rust scale and flaking can accelerate rapidly once the protective coating is compromised. With eight MOT tests spanning 2020 through 2026 and approximately 113,861 recorded miles against a 2011 registration, the vehicle has averaged roughly 7,600 miles per year, which sits comfortably within the expected range for a car of its age. There are no unusually long gaps in testing, with annual or near-annual checks consistently recorded, meaning the mileage accumulation is steady rather than indicative of either long-term storage or an intensive driving schedule. This regularity gives a relatively complete picture of wear progression, and the steady accumulation suggests consumable items such as tyres, brake pads and discs will have been replaced on a natural cycle rather than suffering accelerated wear from heavy use. The recurring advisory on the offside rear wheel bearing, recorded in both 2025 and 2026, points to a component that has been deteriorating over a two-year period and is now likely approaching a point where it will be flagged as a failure rather than an advisory. On a test drive, listen for a humming or droning noise from the rear offside that changes with vehicle speed and tends to diminish or alter when cornering, as this is characteristic of a worn rear wheel bearing. The 2026 failure for a nearside rear tyre cut deep enough to reach the ply or cords is worth noting as it indicates the rubber was being run in a compromised state at that test, so any replacement tyres fitted subsequently should be inspected for quality and age, while a general inspection of all four tyres for uneven wear patterns, sidewall damage and adequate tread depth is essential given that a nearside front inner tyre was previously flagged as worn close to the legal limit. The corrosion advisories across the subframe, rear axle and suspension mounting areas, combined with the recurring wheel bearing play, are the principal mechanical concerns to investigate in person. On inspection, the vehicle should be raised or viewed from beneath on a ramp to assess the extent of surface corrosion on the front subframe and rear axle, paying particular attention to seams, box sections and weld joints where rust can penetrate more deeply than the visible surface suggests. The rear suspension component mounting prescribed areas on both sides should be checked for any flaking or scaling that could indicate the corrosion is advancing towards the excessive threshold. Additionally, with a 2024 headlamp aim failure recorded, both headlamp projectors should be verified for correct alignment and operation, as misaligned units can fail again at short notice. Taken together, the record does not suggest imminent non-roadworthiness, but the corrosion pattern and the progressing wheel bearing issue mean a thorough underbody examination is a prudent step before purchase.