2006 Lexus RX350 3.5L Petrol · GU56 YHL

The 2006 Lexus RX350 presents a mixed maintenance picture. The most recent MOT, conducted on 19 December 2022 at 85,699 miles, passed but carried advisories that signal a gradual decline in underbody condition. Front chassis corrosion within 30cm of a mounting point, corroded rear coil springs, and light oil misting on both rear shock absorbers were all noted. Rear brake pads were flagged as wearing thin. These are not new failures but a continuation of a long-term trend. The vehicle has not been tested since December 2022, meaning the current roadworthiness status is unknown and the buyer is relying on a certificate that expired over three years ago. The maintenance trend is stable to slowly worsening, with corrosion and suspension wear accumulating rather than being resolved. The mileage profile is unusually low for a vehicle of this age. Between December 2018 and December 2022, the recorded mileage rose from 71,523 to 85,699 miles, an increase of just 14,176 miles over four years. That equates to roughly 3,544 miles per year during that period, well below the already modest average of 4,285 miles per year calculated over the vehicle's full life. The sharpest accumulation occurred between the 2021 and 2022 tests, when the car covered 4,796 miles in twelve months. Prior to that, annual mileage was even lower. This pattern suggests extended periods of light use or standing, which can itself cause issues such as deteriorated rubber components, seized brakes, and moisture-related corrosion in areas that would otherwise be self-cleaning through regular heat cycles. A prospective buyer should focus the physical inspection on the rear suspension and underbody. The rear shock absorbers have shown light oil misting in every test from 2019 through 2022, indicating a slow but persistent loss of damping fluid that will eventually compromise ride control and tyre contact. The rear coil springs were flagged as corroded in the 2022 test, and the rear sub-frame and suspension mounting points have carried corrosion advisories since at least 2019. These are not cosmetic concerns. Corroded coil springs can fracture, and weakened sub-frame mounts affect wheel alignment and structural integrity. The offside rear suspension arm has been noted as damaged but not seriously weakened in three consecutive tests from 2019 to 2021, suggesting a bent or impact-damaged component that was monitored rather than replaced. The front integral structure corrosion advisory from the 2022 test deserves particular attention. Corrosion within 30cm of a body or chassis mounting is a prescribed area under MOT standards, and while the tester judged it not to be seriously affecting overall security at that time, the condition has had over three years to progress unchecked. The rear seat belt webbing has been flagged as frayed in every test from 2019 to 2022, a basic safety item that should have been replaced promptly. Combined with the insecure battery noted in 2019 and 2020, this suggests a pattern of minor but persistent defects being tolerated rather than corrected. A thorough inspection of the front sub-frame mounting points, rear spring seats, and seat belt condition is essential before purchase.