2005 Lexus RX400H 3.3L Hybrid electric (clean) · ML 138

The most recent MOT test for the 2005 Lexus RX400H was conducted on 2026-07-13 and resulted in a pass, marking the vehicle’s fifth consecutive MOT without recorded defects. However, the vehicle’s history reveals a critical failure in 2023-07-19, specifically a serious fluid leak from the offside front shock absorber, which would have rendered the car unsafe for road use at that time. This failure stands out as a notable anomaly, suggesting either an underlying structural or manufacturing issue with the suspension component or inadequate maintenance to address prior signs of wear. The subsequent MOTs have all passed without further defects, which could indicate either effective corrective action or that the leak was contained or mitigated through repairs, but the presence of this single failure raises concerns about the long-term reliability of the suspension system, particularly the shock absorbers. Buyers should be cautious, as repeated or persistent issues with shock absorbers can lead to progressive suspension failure, compromised handling, and increased risk of accidents due to reduced vehicle stability. The recorded mileage of 114,675 miles for a vehicle aged approximately 21 years is unusually low, averaging just over 5,461 miles per year—a rate that is significantly below the typical usage patterns for a luxury hybrid of this era, especially given its high maintenance costs and potential for long-term wear. Such low mileage often correlates with periods of extended inactivity, such as storage, which can exacerbate issues like corrosion, fluid degradation, and internal component dry friction. The RX400H, in particular, is a complex hybrid system with both mechanical and electrical components that may suffer from prolonged standing, including potential battery degradation, brake system corrosion, and suspension component stiffness from lack of use. Additionally, if the vehicle has been stored in a damp or poorly ventilated environment, this could accelerate corrosion in the undercarriage, exhaust system, and electrical connections, further complicating its roadworthiness. Given the history of a serious fluid leak from the offside front shock absorber, the buyer must conduct a thorough inspection of the suspension system. On a test drive, listen for unusual noises such as clunks, rattles, or a loss of damping responsiveness, particularly when navigating bumps or corners. Visually inspect the shock absorbers for signs of oil leakage around the mounts and seals, and check for uneven tyre wear patterns that may indicate suspension misalignment or failure. If the leak was not fully addressed, the shock absorber may have deteriorated internally, leading to reduced performance and potential failure under load. The buyer should also verify that the suspension bushes and coil springs are intact, as these components can wear or degrade alongside the shock absorbers, contributing to handling issues. For the remaining checks, the buyer should prioritise the following areas given the vehicle’s age and low mileage profile. Inspect the tyres for sidewall cracking or perishing, which can occur even at low mileage if the vehicle has been stored for extended periods without use. Check the brake system for signs of corrosion on the discs and linings, particularly in areas where the vehicle has stood stationary, as moisture can cause rusting and binding of the calipers. Verify the condition of the 12V battery and associated wiring, ensuring no corrosion or loose connections that could lead to electrical failures. Since the vehicle has not been serviced within the recommended timeframe for a 21-year-old hybrid, particularly the fluid levels and filters, the buyer should consider a comprehensive service check, including the brake fluid, coolant, and transmission fluid, as these fluids degrade over time regardless of mileage. Additionally, inspect the exhaust system for leaks or corrosion, and ensure the catalytic converter and oxygen sensors are functioning correctly to avoid future emissions-related failures. Finally, a thorough visual and functional check of the electrical system, including lights, indicators, and the hybrid drive components, is essential to confirm the vehicle’s readiness for use.