2005 Mazda RX-8 1.3L Petrol · RF55 CWR

The most recent MOT record for this 2005 Mazda RX-8 shows a pass in June 2022, but the preceding history reveals a concerning trend of significant mechanical and structural failures. The vehicle has experienced multiple major and dangerous failures, most notably a dangerous failure in 2019 regarding critically worn brake pads and a major failure in 2022 concerning serious corrosion to the offside rear suspension component and the sill. While the 2022 pass suggests that the immediate structural and electronic faults were addressed, the history indicates a pattern of reactive rather than preventative maintenance. The recurring advisories regarding exhaust noise and oil leaks suggest underlying issues with the rotary engine's sealing or exhaust system integrity that have persisted across several years. With a recorded mileage of 80,333 over 21 years, the vehicle has averaged approximately 3,825 miles per year. This is significantly lower than the UK average, suggesting the car has spent considerable periods stationary or has been used only for occasional short trips. While low mileage can imply less drivetrain wear, in the context of a rotary-powered vehicle like the RX-8, infrequent use can be detrimental. Long periods of standing often lead to degraded engine oil, moisture accumulation in the exhaust, and the hardening of rubber components. The low annual mileage also increases the likelihood that the vehicle has suffered from age-related degradation of consumables, such as seals and hoses, which may not be reflected in the odometer reading alone. A prospective buyer must exercise extreme caution regarding the structural integrity of the chassis. The 2022 failure for serious sill corrosion and weakened suspension mounting points is a critical red flag; you must inspect the underbody thoroughly for any signs of fresh welding, bubbling paint, or active rust, as structural repairs in these areas are costly and vital for safety. Furthermore, the history of ABS, electronic stability control, and engine management light faults suggests complex electrical or sensor issues. During a test drive, listen for any unusual vibrations or clunks from the suspension, which could indicate that the previously noted play in the anti-roll bar linkages or suspension bushes has returned. Pay close attention to the braking performance; given the history of binding calipers and thin pads, the pedal should feel firm and consistent, without any shuddering or pulling to one side. The recurring advisories for exhaust noise and oil leaks require immediate investigation. An oily engine bay or visible drips on the driveway could indicate failing apex seals or oil metering device issues, which are common in high-mileage or poorly maintained rotary engines. Check the exhaust system for excessive vibration or loud drone, which may indicate failing hangers or internal baffles. Because of the low annual usage, you should also inspect all tyres for sidewall cracking or perishing, even if the tread depth appears sufficient. Additionally, verify the service history to ensure that fluids, particularly engine oil and coolant, have been changed based on time intervals rather than just mileage, as stagnant fluids can cause internal corrosion and seal failure in these specific powerplants.