MINI Countryman III (U25) (2024 – Présent)

Reliability score : 8.2/10

The MINI Countryman III (U25) marks a major turning point for the brand. Based on BMW's FAAR platform (shared with the BMW X1 U11), it grows considerably (+13 cm in length) to become a true C-segment family SUV. It is also the first MINI assembled in Germany (Leipzig plant). It abandons plug-in hybrid (PHEV) powertrains in favor of an offering split between mild-hybrid (MHEV 48V) internal combustion engines and 100% electric versions. The interior is dominated by a 24 cm circular OLED central screen running MINI Operating System 9. Although the model is very recent (launched early 2024), its thermal mechanical components (BMW B38, B48, B47 modular engines) are evolutions of widely proven blocks, ensuring excellent basic mechanical reliability, although the onboard electronics are experienc

✅ Strengths

Exceptionally fuel-efficient and refined Diesel engine (B47), ideal for high-mileage drivers.
Significantly increased interior space (trunk from 460L to 505L depending on engine) and sliding rear bench.
Overall build quality and sound insulation worthy of the premium segment.
Dynamic road handling despite increased weight and size.
Magnificent central OLED screen with a very fluid interface (when it's not buggy).

⚠️ Weaknesses

Questionable all-touch ergonomics (removal of physical climate controls).
Frequent software bugs on the new MINI OS 9 (Android AOSP) at launch.
Significantly increased weight (the Diesel weighs over 1,600 kg, the electric version exceeds 2 tons).
Firm suspension comfort, especially with 19 or 20-inch wheels.
Elite pricing and very expensive options catalog (Packs).

🎯 Verdict

The MINI Countryman III (U25) becomes more bourgeois and a true family SUV, losing some of its 'go-kart' feel in favor of comfort and technology. The Diesel version (Countryman D) is an extremely relevant choice for high-mileage drivers: the BMW B47 engine coupled with 48V mild-hybridization is a model of smoothness, reliability, and fuel efficiency. It is paradoxically one of the safest powertrains in the range in the long term, provided you drive enough to avoid fouling. The main drawback at the start of its career concerns the electronics (OS 9 bugs) and the major recall of the IBS braking system. If you buy a 2024 model, demand proof that the braking module has been checked or replaced.

Common issues

Bugs logiciels et système d'infodivertissement (MINI Operating System 9) Low

🔧 Dès la livraison – 10 000 km

💶 Généralement couvert par la garantie (mises à jour OTA ou en concession)

Vérifier les mises à jour logicielles régulières et signaler les anomalies.

Rappels constructeur initiaux (campagnes de service) variable (faible à moyenne)

🔧 Dès la livraison – 20 000 km

💶 Couvert par le constructeur

Suivre les communications officielles et effectuer les rappels sans tarder.

Dysfonctionnements mineurs du système AdBlue/SCR Medium

🔧 10 000 – 40 000 km

💶 300 – 800 € (si hors garantie, mais peu probable sur un véhicule si récent)

Utiliser un AdBlue de qualité, éviter de rouler le réservoir vide.

Estimated maintenance costs

Oil change	200 – 350 £GBP
Complete brakes	700 – 1 300 £GBP
Estimated annual budget	350 – 600 £GBP

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