Peugeot 308 III (P51) (2021 – Présent)

Reliability score : 6.5/10

The third-generation Peugeot 308 (internal code P51 for the sedan, P52 for the SW estate) marks a stylistic break and a clear move upmarket for the lion brand. Inaugurating the brand's new logo, it is based on an evolution of the EMP2 (V3) platform, allowing for massive electrification (PHEV, then MHEV and 100% electric). While its road handling remains a benchmark for balance between dynamism and comfort, it suffers from reduced rear passenger space compared to competitors (Golf, Focus). Mechanically, this generation inherited the internal combustion engines from the previous generation, with their efficiency qualities but also their heavy baggage in terms of reliability (wet belt on the 1.2 PureTech, camshaft chain on the 1.5 BlueHDi), before correcting the course in 2023 with profound m

✅ Strengths

Superb road handling (high-level comfort/dynamism compromise)
Very refined soundproofing, worthy of the segment above
1.5 BlueHDi fuel consumption on the highway (often under 4.5 L/100 km)
Spectacular interior presentation and significantly improved finish quality
Pleasure of the EAT8 automatic gearbox (smooth and responsive)

⚠️ Weaknesses

Disastrous reliability of internal combustion engines (1.5 BlueHDi and 1.2 PureTech) produced before 2023
Very average rear passenger space for the category
i-Cockpit ergonomics that do not suit all body types (steering wheel obscuring the gauges)
Infotainment system sometimes slow and prone to bugs (black screens)
Poor rear visibility (reversing camera essential)

🎯 Verdict

The Peugeot 308 III is a car full of road and aesthetic qualities, but buying it used requires expert caution. If you are targeting the 1.5 BlueHDi diesel, it is imperative to avoid models produced before February 2023 equipped with the 7 mm camshaft chain, at the risk of fatal engine failure (often around 80,000 - 100,000 km). Exclusively look for a recent model (or a model whose engine has been replaced/updated with the 8 mm kit, with invoice to prove it). If you drive less, the new 1.2 Hybrid 136 version (chain-driven MHEV) is by far the most rational and safest choice in the range.