Audi Q7 4M (2015–2025) (2015 – 2025)

Reliability score : 7.2/10

The second-generation Audi Q7 (Type 4M) is based on the Volkswagen Group's MLB Evo platform (shared with the Porsche Cayenne, VW Touareg, and Bentley Bentayga). Launched in 2015, it marked a break from its predecessor with a drastic weight reduction (up to -325 kg), significantly improving its dynamism and efficiency. This large luxury SUV (available in 5 or 7 seats) has undergone two major facelifts: a first in 2019 (new dashboard with dual touchscreens, 48V mild hybridization) and a second in 2024 (aesthetic tweaks, HD Matrix LED headlights). Although the European market was initially dominated by diesel (TDI), gasoline (TFSI) and plug-in hybrid (TFSI e) powertrains have taken over, driven by anti-pollution standards and global demand (particularly in North America and Asia).

✅ Strengths

⚠️ Weaknesses

🎯 Verdict

The Audi Q7 4M is a formidable flagship, capable of transporting 7 people in absolute comfort. If you are targeting a gasoline engine, the 3.0 TFSI supercharged (2015-2019) is the most sensible choice in terms of pure reliability, although it is rare in Europe (frequent imports). The 55 TFSI (2019+) versions offer superior driving pleasure and cutting-edge technology, but the Damocles' sword of the 48V hybrid system dictates buying a model under warranty or one that has already had the starter-generator replaced. Avoid models with a vague service history: the technical complexity of this SUV does not forgive any negligence.

Common issues

Défaillance de la valve PCV (séparateur d'huile) Medium
🔧 80 000 – 150 000 km
💶 400 – 800 €
Surveiller consommation d'huile et ralenti irrégulier; remplacer préventivement si signes.
Fuites de la pompe à eau ou du boîtier de thermostat Medium
🔧 90 000 – 160 000 km
💶 600 – 1 200 €
Vérifier régulièrement le niveau de liquide de refroidissement et les traces de fuite.
Encrassement des soupapes d'admission (calamine) Medium
🔧 100 000 – 180 000 km
💶 500 – 1 000 €
Un décalaminage régulier peut prévenir la perte de puissance et surconsommation.
Problèmes de suspension pneumatique (compresseur/amortisseurs) High
🔧 100 000 – 200 000 km
💶 800 – 2 500 € par élément
Tester le système lors de l'achat; surveiller les variations de hauteur du véhicule.

Estimated maintenance costs

Oil change £100 – 180
Timing chain £1 300 – 2 600 (si réparation nécessaire)
Complete brakes £400 – 750
Estimated annual budget £750 – 1 500

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