Mazda Mazda6 II (GH) (2007–2012) (2007 – 2012)

Reliability score : 6.5/10

The second-generation Mazda 6, known by the GH chassis code, was launched in 2007 and produced until 2012. It succeeded the first generation (GG/GY) and is positioned in the family sedan segment, available in 4-door sedan, 5-door sedan (hatchback), and wagon (Sport Combi) body styles. The Mazda 6 GH retained the brand's 'Zoom-Zoom' philosophy, offering dynamic road handling and a sharper design than its predecessor. It received a minor facelift in 2010, bringing subtle aesthetic changes (bumpers, lights) and technical improvements, particularly to the diesel engines. Overall, the Mazda 6 GH is a pleasant car to drive, well-equipped, and offers good value for money on the used market. However, its reliability varies greatly depending on the engine, with diesels being particularly prone to c

✅ Strengths

Dynamic and pleasant road handling
Elegant and timeless design
Generous interior space (especially in the wagon)
Comprehensive equipment for the segment
Very reliable and powerful gasoline engines
Good quality interior finish

⚠️ Weaknesses

Catastrophic reliability of diesel engines (2.0 and especially 2.2 MZR-CD)
Costly timing chain and DPF problems on diesels
Imperfect sound insulation at high speeds
Limited rear visibility on the 4-door sedan
Fuel consumption of V6 gasoline engines (N. America)

🎯 Verdict

The Mazda 6 GH is an attractive car due to its design, driving pleasure, and equipment. However, the choice of engine is absolutely crucial for its long-term reliability. Our verdict is clear: prioritize gasoline engines at all costs. The 1.8, 2.0, and especially 2.5 MZR units are exemplarily robust and will offer peace of mind that diesels cannot match. They are less prone to costly breakdowns and their maintenance is simpler. Regarding the diesels (2.0 and 2.2 MZR-CD), we recommend the utmost caution, or even avoiding them. The recurring and costly problems with the DPF, timing chain (on the 2.2), turbo, and injectors can turn a good deal into a financial black hole. If you still consider a diesel, a complete and impeccable service history is non-negotiable, with proof of timing chain replacement and rigorous DPF monitoring. A thorough inspection by a Mazda specialist is essential. In summary, a gasoline Mazda 6 GH is an excellent used car choice. A diesel, even at a low price, is a risky bet.

Common issues

Encrassement et problèmes de régénération du FAP (Filtre à Particules) High

🔧 80 000 – 150 000 km

💶 800 – 2 000 € (nettoyage/remplacement)

Privilégier les longs trajets réguliers, surveiller le voyant FAP.

Dilution de l'huile moteur par le carburant (liée aux régénérations FAP) High

🔧 60 000 km et plus

💶 Coût variable, risque de casse moteur si ignoré

Vérifier le niveau d'huile fréquemment, respecter les intervalles de vidange.

Dysfonctionnement de la vanne EGR (encrassement) Medium

🔧 100 000 – 180 000 km

💶 300 – 600 € (nettoyage/remplacement)

Un nettoyage préventif peut prolonger sa durée de vie.

Défaillance du turbocompresseur High

🔧 120 000 – 200 000 km

💶 1 000 – 2 500 €

Laisser le moteur tourner au ralenti quelques instants avant de couper le contact.

Usure prématurée de l'embrayage et du volant moteur bi-masse Medium

🔧 120 000 – 200 000 km

💶 1 000 – 1 800 €

Tester l'embrayage pour tout patinage ou bruit de volant moteur.

Estimated maintenance costs

Oil change	£70 – 130
Timing chain	£850 – 1 800 (si remplacement nécessaire)
Clutch	£750 – 1 400
Complete brakes	£220 – 480
Estimated annual budget	£550 – 1 100

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