2006 Lexus RX400 H SE-L CVT 3.3L Electric · GP55 EKG

The most recent DVSA MOT test for this 2006 Lexus RX400h SE-L CVT was conducted on 10 February 2025 and resulted in a failure, although the official record does not capture the specific defect entries provided to the examining station. This is a point the buyer should clarify directly with the seller or previous keeper, as the nature and location of that failure is essential to understanding whether the vehicle was promptly rectified and whether the underlying component remains a risk. Looking at the broader pattern, the vehicle passed its tests cleanly on 6 February 2023, 7 February 2024 (with a same-day failure also recorded, which often indicates a minor rectifiable defect that was fixed during the same visit), and ultimately passed on 7 February 2024. The trend does not show a clear deterioration or improvement, but rather an intermittent pattern typical of a hybrid SUV entering its twentieth year. The buyer should request the actual failure advisory sheet from the 2025 test to confirm that rectification work has been properly completed and documented. At 99,258 recorded miles over approximately twenty years, this RX400h averages around 4,963 miles per year, which is notably low for any passenger vehicle and particularly so for a luxury hybrid SUV. Such low annual mileage often indicates a mix of short urban trips, occasional longer journeys, and potentially extended periods of standing. Mechanically, this usage profile has two contrasting implications. On the positive side, the engine, transmission, hybrid system, and interior components have not been subjected to high-cycle wear, meaning internal combustion components, the continuously variable transmission, and the electric hybrid drivetrain may retain substantial service life. On the cautionary side, low mileage combined with age frequently masks time-based degradation such as perished rubber, oxidised brake components, stale fluids, and electrical gremlins arising from infrequent use rather than wear. Given the low annual mileage and the vehicle's age, a prospective buyer should conduct a thorough physical inspection rather than relying solely on mileage-based expectations. Begin with the tyres, as a twenty-year-old vehicle will almost certainly require replacement regardless of tread depth; check the sidewalls for cracking, perishing, and bulges caused by age-related rubber degradation, and verify the manufacturing date on the sidewall markings. Examine all visible rubber components including the CV boots, suspension bushes, anti-roll bar links, and the power steering rack gaiters, as these harden and crack with calendar age even on low-mileage vehicles. The 12-volt auxiliary battery, critical for hybrid system startup, is well past its expected service life of five to six years and should be load-tested or replaced preventatively. Brake discs and calipers on a standing vehicle are prone to surface corrosion and binding; on a test drive, listen for scraping or grinding on initial application and feel for any pulling to one side, which may indicate seized caliper slides. Also verify that the hybrid system engages smoothly, that the engine cycles on and off as expected during a road test, and that no warning lights appear on the instrument cluster. Finally, attention should be given to the time-based servicing items that do not correlate with odometer readings. Brake fluid is hygroscopic and should be replaced every two to three years regardless of mileage; request evidence of this service. Engine oil, transmission fluid for the CVT, inverter coolant, and the hybrid system coolant all degrade with age and require periodic renewal, so a full service history with dated entries is highly advisable. Inspect the underbody for corrosion, particularly around the rear suspension mounting points, subframe, and exhaust hangers, as road salt exposure over two decades can compromise structural integrity even on garaged vehicles. During the test drive, listen for suspension clonks over speed bumps, assess for any vibration through the steering wheel that may indicate warped brake rotors or imbalanced hybrid drivetrain components, and confirm smooth operation of the electronic continuously variable transmission without hesitation or judder. A pre-purchase inspection by a Lexus specialist or hybrid-experienced garage would be prudent given the complexity of the Hybrid Synergy Drive system and the age of the vehicle.