2009 Peugeot 308 1.6L Diesel · GL09 RFZ

The most recent MOT inspection from December 2023 resulted in a failure due to significant exhaust-related issues, indicating a recent decline in the vehicle's mechanical maintenance trend. While the car showed periods of stability with clean passes in 2020, 2021, and 2022, the progression from minor headlamp defects to major exhaust emissions failures and leaks suggests that component degradation is accelerating. The transition from a clean pass in 2022 to a failure involving both high emissions and a major exhaust leak in 2023 is a concerning signal that the vehicle's emission control systems or fuel delivery components may be reaching the end of their serviceable life. With a recorded mileage of 140,153 miles over approximately 17 years, the vehicle has averaged roughly 8,244 miles per year. This usage profile is considered typical for a diesel hatchback of this age and suggests a consistent, moderate level of road use rather than extreme motorway mileage or long periods of neglectful standing. However, at this mileage threshold, the mechanical components are subject to significant cumulative wear. You should expect that high-mileage items such as the turbocharger, fuel injectors, and various suspension bushings will be nearing their fatigue limits, regardless of the relatively steady annual mileage. The specific defects recorded in the 2023 failure require immediate scrutiny. The major failure regarding exhaust emissions and the leak near the diesel injector seals suggests potential issues with the fuel injection system or the integrity of the exhaust manifold. During a test drive, listen closely for any rhythmic ticking, sputtering, or a heavy diesel knock, which could indicate faulty injectors or a leaking seal. Furthermore, a heavy smell of unburnt diesel or exhaust fumes within the cabin while idling or under acceleration is a strong indicator of an ongoing leak. The previous advisory regarding an oil leak should also be investigated by inspecting the engine bay and the ground beneath the car for any signs of fresh fluid pooling or weeping from gaskets. You must also consider the history of suspension and braking issues. The 2021 failure involving a fractured coil spring, a damaged anti-roll bar linkage, and a dangerous tyre condition indicates that the vehicle has previously suffered from neglected consumable maintenance. When inspecting the car, look for uneven tyre wear patterns which could signal geometry issues, and listen for any clunking or knocking sounds from the front end when driving over speed bumps, which would indicate worn suspension bushes or ball joints. Given the 2021 advisory for thin brake pads and the 2021 failure for binding rear brakes, verify that the brake pedal feels firm and that the vehicle does not pull to one side under braking, which could suggest a sticking caliper or warped discs.