Peugeot 508

The Peugeot 508 with the 1.5 BlueHDi (DV5) engine faces a critical known issue regarding the 7mm camshaft chain used in units manufactured before late 2022, which can break and cause total engine failure. Owners should verify if the reinforced 8mm version has been installed. Another frequent problem is the AdBlue injection system, where crystallization or pump failure often necessitates a full tank replacement costing up to €1,200. Additionally, the model is prone to particulate filter (DPF) and EGR clogging if used primarily for short trips. Other reported issues include water pump leaks before 100,000 km, thermostat housing failures leading to overheating, and electronic glitches such as slow infotainment response and faulty parking sensors due to poor sealing. High-mileage units also show a tendency for uneven rear tire wear and premature timing belt degradation, suggesting replacement should occur earlier than the official 180,000 km interval.

Owners highly praise the second-generation Peugeot 508 for its revolutionary 'fastback' design and premium aesthetic, often stating it feels more expensive than its actual price point. The 1.5 BlueHDi engine is lauded for its exceptional fuel efficiency, frequently achieving real-world averages between 4.5 and 5 liters per 100 km. The 'i-Cockpit' with its small steering wheel provides an agile and engaging driving experience that many prefer over competitors like the VW Passat. However, common complaints focus on practicality: the sloping roofline makes entry and exit difficult for the rear seats and severely limits headroom for tall adults. Additionally, users find the integration of climate controls into the touchscreen interface to be distracting and the overall multimedia system somewhat sluggish by modern standards.

The Peugeot 508 experiences a standard D-segment depreciation of approximately 45-55% within its first five years, though units with high annual mileage (exceeding 25,000 km/year) see an additional 10-15% value drop. For 2019 models, a cash price around €13,500 is considered competitive for professional sales, while lower 'hook' prices are typically tied to financing agreements that increase the total absolute cost. The 'Business Line' trim, often sourced from corporate fleets, typically ensures a history of official maintenance but implies intensive interior use. While manual diesel versions remain efficient, they currently see slightly lower market demand compared to EAT8 automatic variants. Prospective buyers should prioritize vehicles that have already undergone camshaft chain and AdBlue system inspections to protect their investment.