2008 Peugeot 308 1.6L Petrol · LS08 YKB

The most recent MOT test on the 2008 Peugeot 308 recorded a failure, with the most critical issues being a persistent engine malfunction indicator light (MIL) inoperative or indicating a genuine fault, alongside excessive oil leakage from the engine. This failure contrasts sharply with the preceding five MOTs, which were all passed without major defects, suggesting a significant deterioration in the vehicle’s engine management system or related electrical wiring. The presence of an oil leak advisory in earlier tests, though not excessive, now escalated to a major failure, indicating progressive wear or a failing oil seal, likely contributing to the MIL issue. The advisory regarding the offside rear drive shaft constant velocity (CV) boot split further highlights a recurring mechanical failure point, which could lead to further drivetrain contamination if not addressed promptly. The recorded mileage of 72,312 miles for a vehicle aged approximately 18 years represents an unusually low annual usage rate of around 4,017 miles per year, which is far below the typical wear-and-tear expectations for its age. Such low mileage often suggests periods of prolonged inactivity, particularly if the vehicle was stored rather than driven regularly. However, this usage profile raises concerns about potential issues stemming from standing, such as brake system corrosion, particularly on the rear brakes where binding was noted in a previous MOT. Additionally, standing vehicles are more susceptible to fluid degradation, including brake fluid and engine coolant, which can lead to stiffness or failure if not serviced within the recommended calendar intervals. Tyre sidewall deterioration, though noted in earlier advisories, may also be exacerbated by age-related perishing if the vehicle has been stationary for extended periods. Given the recent MOT failure and recurring advisories, the prospective buyer should prioritise a thorough mechanical inspection focusing on the engine, drivetrain, and electrical systems. Start by visually inspecting the engine bay for signs of oil leakage, particularly around the valve cover, oil filter housing, and oil pan gasket, while listening for any unusual oil consumption noises or smoke during startup. The CV joint boot failure suggests a compromised seal, so check for excessive play or vibration in the rear axle area, and inspect the boot for further splits or dirt ingress. During a test drive, monitor for any irregularities such as rough shifting, excessive vibration at highway speeds, or a loss of power that could indicate a failing MIL-related issue. If the engine management system is suspected to be faulty, a diagnostic scan tool should be used to confirm the exact fault code and assess whether the issue is related to sensors, wiring, or the ECU itself. For the buyer’s physical inspection beyond the MOT history, examine the rear tyres for signs of uneven wear or sidewall cracking, as these could indicate prolonged standing or poor alignment issues. Check the rear brake discs for corrosion, pitting, or binding, especially if the vehicle has been stationary for extended periods, as this can lead to reduced braking performance or even failure. Inspect the front brakes for similar signs of corrosion or uneven wear, and listen for any grinding or squeaking noises during braking, which could signal worn brake pads or warped discs. The suspension should be checked for signs of worn suspension bushes, coil spring failure, or binding calipers, particularly if the vehicle has been driven lightly. Finally, verify the condition of the 12V battery and associated wiring, as prolonged inactivity can lead to battery discharge or corrosion, and ensure that all fluids—including engine oil, coolant, brake fluid, and transmission fluid—are at the correct levels and free from contamination. If the vehicle has not been serviced in recent years, consider scheduling a comprehensive maintenance check to address fluid degradation and potential wear issues before they escalate.