Peugeot 508 II (R8) (2018 – 2025)

Reliability score : 7.2/10

Peugeot 508 II (R8) The second-generation Peugeot 508 (internal code R8) marked a radical departure from its predecessor. Abandoning the traditional three-box sedan silhouette, Peugeot transformed the 508 into a sleek, low-slung five-door fastback (and a stunning SW estate), featuring frameless doors and an aggressive front fascia. Inside, it showcases the polarizing but futuristic i-Cockpit. Positioned as a premium-leaning D-segment contender, it prioritizes design and driving dynamics over sheer rear-seat space. A mid-cycle facelift was introduced in 2023, bringing the new Peugeot shield logo, updated matrix LED headlights with 'three-claw' DRLs, and an overhauled infotainment system. While the chassis is universally praised, the engine lineup's reliability is a mixed bag, heavily depend

✅ Strengths

Stunning exterior design (Fastback and SW) that ages exceptionally well.
Class-leading chassis dynamics: excellent balance between ride comfort and sharp handling.
The 2.0 BlueHDi engine is a masterpiece of durability and highway efficiency.
High-quality interior materials and unique i-Cockpit layout.
Excellent EAT8 automatic transmission (smooth and responsive on ICE models).

⚠️ Weaknesses

Catastrophic reliability issues on the 1.5 BlueHDi (8mm chain) and 1.2 PureTech (wet belt).
AdBlue system failures (tank/pump) are a recurring nightmare across all PSA diesel engines.
Frameless doors can freeze shut in winter and occasionally suffer from wind noise at high speeds.
Rear headroom and rear visibility are compromised by the sloping roofline.
Infotainment system (pre-2023 facelift) is laggy and visually outdated.

🎯 Verdict

The Peugeot 508 II is undeniably one of the most beautiful cars in its segment, offering a driving experience that rivals premium German brands. However, its reliability is strictly dictated by what is under the hood. If you want a diesel: The 2.0 BlueHDi (160 or 180 hp) is the absolute best choice. It is robust, powerful, and perfectly suited to the car's grand-touring nature. You only need to budget for potential AdBlue tank issues. Conversely, avoid the 1.5 BlueHDi 130 unless you have absolute proof that the 16mm camshaft chain upgrade has been performed by Peugeot. Avoid the 1.2 PureTech entirely. The PHEV versions are decent for tax purposes but add layers of electronic complexity. Buy a 2.0 BlueHDi SW, and you have one of the best highway cruisers of the decade.