BMW X7 I (G07) (2018 – 2022)

Reliability score : 7.4/10

The first-generation BMW X7 (G07) (before its facelift at the end of 2022) is the flagship SUV of the Bavarian brand. Designed to compete with the Mercedes GLS, it offers 7 seats as standard, ostentatious luxury, and adaptive air suspension. Important clarification on hybridization: Unlike the X5, the X7 has never been offered in a plug-in hybrid version (PHEV). Hybridization on the X7 is limited to a 48V Mild-Hybrid (MHEV) system, introduced during 2020 on the xDrive40i (petrol) and xDrive40d (diesel) engines. This system uses an 11 hp starter-alternator to assist the combustion engine, reduce fuel consumption, and smooth out Start & Stop restarts. Although efficient, this 48V system adds a layer of electronic complexity that has been the subject of several recalls (notably regarding the

✅ Strengths

Imperial comfort thanks to the standard air suspension
Very high-level soundproofing (double glazing)
Brilliant and efficient B58 6-cylinder petrol engine (40i) with the MHEV
Real space for 7 adults and flawless finish quality
Highly responsive iDrive 7 infotainment system

⚠️ Weaknesses

Extreme electronic complexity (48V system, driving aids)
Very high number of manufacturer recalls (brakes, starter, steering)
Maintenance and repair costs (air suspension, 21 to 23-inch tires)
Size unsuited for European city centers
No plug-in hybrid (PHEV) version available, unlike the X5

🎯 Verdict

The BMW X7 (2018-2022) is a pinnacle of comfort and technology, but it pays the price for its complexity. The absence of a plug-in hybrid (PHEV) version is compensated by the excellent 48V MHEV system of the 40i and 40d versions, which offers exceptional driving pleasure. However, the dizzying list of recalls (affecting the starter, brakes, steering, and 48V system) requires absolute vigilance. Buying advice: Favor an xDrive40i (MHEV) model sold at a dealership with a "BMW Premium Selection" warranty and a 100% up-to-date recall history. Avoid imported models without a clear history or M50d versions out of warranty.

Common issues

Problèmes de suspension pneumatique (fuites, compresseur) Medium

🔧 80 000 – 150 000 km

💶 1 000 – 3 000 € (par essieu ou compresseur)

Vérifier l'assiette du véhicule et l'absence de bruits anormaux à l'essai.

Dysfonctionnements du système d'infodivertissement et électronique Low

🔧 Dès 20 000 km

💶 200 – 800 € (mise à jour logicielle, remplacement capteur)

Tester toutes les fonctions électroniques et l'écran tactile avant achat.

Potentiels problèmes du système hybride (batterie haute tension, module de charge) High

🔧 100 000 – 200 000 km (dégradation ou défauts plus tôt)

💶 500 – 15 000 € (selon le composant défectueux)

Vérifier l'historique de service hybride et l'autonomie électrique réelle.

Usure des composants de freinage (disques et plaquettes) Low

🔧 40 000 – 80 000 km

💶 600 – 1 200 € (par essieu, disques et plaquettes)

Évaluer l'état des freins et l'historique de remplacement.

Estimated maintenance costs

Oil change	£150 – 260
Complete brakes	£1 000 – 1 800
Estimated annual budget	£900 – 1 800

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