Peugeot 508 II (R8) (2018 – 2025)

Reliability score : 7.2/10

The second-generation Peugeot 508 (codename R8) marks a radical departure from its predecessor. Gone is the classic three-box sedan; Peugeot opted for a 'fastback' sedan silhouette with a tailgate (and a 'shooting brake' SW estate), featuring frameless doors, clearly targeting the premium segment (Audi A5 Sportback, VW Arteon). Based on the EMP2 platform, it excels with its dynamism and exceptional road feel. Restyled in 2023 (new grille, unprecedented emblem, three-claw light signature), it gradually abandoned its pure internal combustion engines in favor of plug-in hybrid (PHEV) powertrains. Although demand is for petrol, the choice is mixed: the 1.6 PureTech is highly recommendable, while the 1.2 PureTech is to be avoided. Overall generation rating: an excellent chassis let down by unev

✅ Strengths

Spectacular and timeless design (especially in GT and PSE trims)
Superb road handling (benchmark comfort/dynamism compromise)
Excellent EAT8 automatic gearbox (smooth and responsive)
Reliability of 1.6 PureTech petrol engines (180 and 225 hp)
Significantly improved finish quality compared to the previous generation
Very refined sound insulation (laminated glazing on some trims)

⚠️ Weaknesses

Catastrophic reliability of the entry-level petrol engine (1.2 PureTech)
Limited rear passenger space and headroom (a consequence of the fastback design)
Slow and outdated infotainment system (before the 2023 facelift)
Chronic AdBlue problems on diesel engines
Poor peripheral visibility
High weight of plug-in hybrid (PHEV) versions penalizing agility

🎯 Verdict

The Peugeot 508 II is a sedan with undeniable charm and road qualities. If you are looking for a petrol engine, the choice is binary: avoid the 1.2 PureTech 130 hp (too fragile and undersized) and absolutely prioritize the 1.6 PureTech (180 or 225 hp). The latter offers a high level of driving pleasure and completely reassuring reliability. The plug-in hybrid (PHEV) versions are appealing on paper but suffer from costly electronic failures out of warranty. In diesel, the 2.0 BlueHDi is a rock, provided you monitor the AdBlue. Buy a 1.6 PureTech with a clear history, and you will have one of the best road cars of its generation.

Common issues

Problèmes de chaîne de distribution (1.6 PureTech) High

🔧 80 000 – 150 000 km

💶 1 200 – 2 500 €

Écoutez les bruits de cliquetis au démarrage; vérifiez l'historique d'entretien.

Consommation excessive d'huile (1.6 PureTech) Medium

🔧 Dès 60 000 km

💶 500 – 2 000 €

Vérifiez régulièrement le niveau d'huile; privilégiez les vidanges fréquentes.

Encrassement des soupapes d'admission (1.6 PureTech) Medium

🔧 70 000 – 120 000 km

💶 400 – 800 €

Adoptez une conduite variée; envisagez un décalaminage préventif.

Fuite de la pompe à eau (1.6 PureTech) Medium

🔧 90 000 – 140 000 km

💶 300 – 600 €

Surveillez le niveau de liquide de refroidissement; vérifiez les traces de fuite.

Estimated maintenance costs

Oil change	£70 – 130
Timing chain	£900 – 2 000
Complete brakes	£380 – 700
Estimated annual budget	£500 – 1 000

Indicative estimates (independent garage, UK market). Prices vary by region and year.