Peugeot 308 III (P51) (2021 – Présent)

Reliability score : 6.5/10

The Peugeot 308 Generation III (internal codes: P51 for the hatchback, P52 for the SW estate) represents a major upmarket shift for the French brand. Introduced in 2021, it is the first model to bear Peugeot's new crest logo. Built on the heavily updated EMP2 V3 architecture, it boasts a striking, aggressive design, a highly digitized 'i-Cockpit' with customizable 'i-Toggles', and improved sound insulation. While it offers a premium feel that rivals German competitors, its reliability record is heavily influenced by Stellantis's corporate engine lineup. The focus of this sheet is the 1.5 BlueHDi diesel, a popular choice for high-mileage drivers, though the full spectrum of powertrains (petrol, MHEV, PHEV, and EV) is covered. Overall, it is a brilliant car dynamically and aesthetically, but

✅ Strengths

Stunning exterior design and premium interior finish
Excellent chassis tuning offering a great balance of comfort and handling
1.5 BlueHDi offers outstanding fuel economy on long trips (often under 5.0 L/100km)
Introduction of the much-improved 1.2 Hybrid 136 with a timing chain
Advanced and responsive i-Connect infotainment system (when fully updated)

⚠️ Weaknesses

Severe reliability concerns with early 1.5 BlueHDi (7mm camshaft chain)
Persistent AdBlue system issues on the diesel variant
1.2 PureTech (non-hybrid) wet timing belt issues still haunt early production years
Cramped rear legroom compared to rivals (VW Golf, Skoda Octavia)
i-Cockpit driving position (small steering wheel) does not suit all body types
Frequent electronic and software glitches (infotainment freezing, ADAS faults)

🎯 Verdict

The Peugeot 308 III is a highly desirable hatchback with undeniable curb appeal and excellent driving dynamics. However, buying one requires extreme caution regarding the powertrain. If you want the Diesel (1.5 BlueHDi): It is a fantastic highway cruiser, but you must aim for a model produced after February 2023 (which features the reinforced 8mm camshaft chain). If buying an older model, ensure the chain has been proactively upgraded and budget for potential AdBlue system repairs. Overall Recommendation: Avoid the standard 1.2 PureTech (110/130) due to the wet belt. The best combustion choice is the newer 1.2 Hybrid 136 MHEV (timing chain). The PHEV and EV versions are solid but expensive. Negotiate heavily on early diesel and non-hybrid petrol models.