2006 Mazda 6 2.0L Petrol · KB55 HDF

Chronic corrosion and deteriorating mechanical integrity define this vehicle's history, culminating in a failure during the last recorded inspection on 3 November 2023. The record shows a progressive decline from a clean pass in 2021 to recurring issues with structural rust and suspension degradation. Of particular concern is the combination of corroded sills and a corroded rear subframe, alongside a recent failure involving blue smoke from the exhaust, suggesting internal engine wear. With 126,071 miles recorded over two decades, the vehicle has averaged approximately 6,304 miles per year. This usage pattern is typical for its age, meaning the drivetrain has seen moderate duty. However, the prevalence of corrosion on the chassis and suspension components suggests that environmental factors have had a more significant impact on the vehicle's condition than raw mileage alone. A physical inspection must prioritise the structural integrity of the sills and the rear subframe to ensure the corrosion has not progressed beyond the advisory stage. During a test drive, listen for knocks or clunks over uneven surfaces, which would indicate that the corroded rear coil springs and lower suspension arms have further deteriorated. Pay close attention to the steering feel and any vague responses, as previous reports of play in the track rod ends and anti-roll bar ball joints suggest wear in the front-end linkages. The engine requires careful scrutiny due to the recorded emission of blue smoke during acceleration and a previous major failure regarding lambda readings. Observe the exhaust output under load to confirm if oil is being burnt in the combustion chamber. Additionally, test for brake binding on the front axles by checking for an unusual pull during deceleration or feeling for excessive heat emanating from the front wheels after a short drive.