Opel Astra L (2021 – 2025)

Reliability score : 6.5/10

The Opel Astra L (6th generation) marks a complete break with the General Motors era. Based on the Stellantis group's EMP2 V3 platform (shared with the Peugeot 308 III and DS 4), it adopts the brand's new stylistic language, characterized by the 'Opel Vizor' grille and a minimalist 'Pure Panel' interior. Although it shares its underpinnings with its French cousins, the Astra benefits from specific suspension and steering settings, 'Autobahn'-tuned (firmer and more rigorous). While the design and ergonomics are praised, the Stellantis mechanical heritage demands great vigilance, particularly concerning the internal combustion engines (1.2 wet-belt petrol and 1.5 diesel).

✅ Strengths

⚠️ Weaknesses

🎯 Verdict

The Opel Astra L is a car full of dynamic and aesthetic qualities, but it is heavily penalized by Stellantis' internal combustion engine lineup. Regarding the targeted 1.5 Diesel 130 hp: it is a high-risk purchase on the used market. Although it is an excellent highway companion, camshaft chain failures (DV5RC engine) and AdBlue system quirks can lead to astronomical bills. If you absolutely insist on diesel, demand a recent model (late 2023+) equipped with the reinforced 8 mm chain, or opt for a VW Golf 2.0 TDI. For a worry-free Astra purchase, prioritize the new 1.2 Turbo Hybrid 136 hp (MHEV) engine with a timing chain, or the 100% electric version if your usage allows.

Common issues

Dysfonctionnement du système AdBlue (SCR) Medium
🔧 40 000 – 100 000 km
💶 600 – 1 500 €
Utiliser AdBlue de qualité, éviter de rouler réservoir vide, faire des trajets longs.
Encrassement du filtre à particules (FAP) Medium
🔧 50 000 – 120 000 km
💶 300 – 800 € (nettoyage/capteurs) ; 1 500 – 3 000 € (remplacement FAP)
Privilégier les longs trajets réguliers pour permettre la régénération.
Problèmes de vanne EGR (encrassement/blocage) Medium
🔧 80 000 – 150 000 km
💶 400 – 900 €
Entretien régulier, éviter les trajets courts répétés pour limiter l'encrassement.

Estimated maintenance costs

Oil change £70 – 130
Timing belt £550 – 1 100
Clutch £850 – 1 500
Complete brakes £250 – 500
Estimated annual budget £600 – 1 200

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