2011 Peugeot 308 1.6L Diesel · CP11 HCD

The vehicle is currently roadworthy but the mechanical history shows a worsening trend regarding engine performance. While it passed its most recent test in January 2026 at 114,722 miles, it failed just six miles prior due to exhaust emissions and a lighting fault. The persistent presence of black smoke during acceleration has been recorded in every test since at least October 2024, indicating a long-term fuel-mixture issue or combustion inefficiency that the owner has failed to fully rectify. At 114,722 miles over 15 years, the car averages approximately 7,650 miles per year, which aligns with typical usage for a hatchback of this age. There is a significant mileage gap of over 20,000 miles between October 2023 and January 2025, followed by a rapid accumulation of 14,600 miles in fourteen months. This period of increased use likely correlates with the appearance of mechanical failures, such as the split offside front drive shaft CV boot noted in late 2024. A buyer must prioritize a professional diagnostic test to address the recurring exhaust emission failure, which often points to faulty injectors, a restricted diesel particulate filter, or a failing turbocharger. The oil leak identified in the latest January 2026 test remains present and, while not currently excessive, requires monitoring to ensure it does not deteriorate rapidly. Additionally, the misted offside rear shock absorber flagged in 2025 should be re-inspected to ensure the seal has not progressed to a total failure, which would compromise vehicle handling.