Mercedes GLA H247 (2020 – 2025)

Reliability score : 7.6/10

The second-generation Mercedes-Benz GLA (codename H247) marks a break from its predecessor (X156). Gone is the 'raised A-Class' look; the H247 fully embraces its compact SUV status with an increased height of 10 cm, offering better interior space and a more generous trunk. Based on the MFA2 platform, it integrates the spectacular MBUX dual-screen infotainment system. In 2023, the model received a facelift, introducing mild-hybridization (MHEV 48V) on gasoline engines, a revised light signature, and the removal of the central touchpad. While technologically very appealing, this premium model requires a significant maintenance budget and exhibits some electronic quirks typical of complex modern architectures.

✅ Strengths

Spectacular interior presentation (MBUX system, ambient lighting)
Significantly increased interior space compared to the previous generation
Suspension comfort (especially with adaptive damping)
1.3L gasoline engines (M282) generally very reliable and economical
Careful sound insulation on high-end versions

⚠️ Weaknesses

Prohibitive purchase price and option costs
Quality of some lower-part plastics unworthy of the badge
Dual-clutch gearbox (7G-DCT) sometimes hesitant and causing jerks in urban driving
Frequent electronic bugs on the MBUX system (black screens, restarts)
Poor rear visibility (reversing camera essential)

🎯 Verdict

The Mercedes GLA H247 is a premium compact SUV that relies heavily on its design and technological content. If you're targeting a gasoline engine, the 1.3L unit (GLA 200) is the most rational choice: it's sufficiently powerful, economical, and boasts an excellent reliability record thanks to its shared design with the Renault-Nissan Alliance. The 2.0L (GLA 250) offers more refinement but had chaotic beginnings (cylinder heads). Purchasing a recent used model is recommended, provided you demand a 100% clear service history, especially for the dual-clutch gearbox and software updates. Avoid models used exclusively in the city, especially diesels or if the DCT gearbox is jerky.

Common issues

Dysfonctionnements logiciels du système d'infodivertissement MBUX Low

🔧 Dès l'acquisition

💶 Généralement pris en charge par mise à jour logicielle sous garantie

Vérifier les mises à jour logicielles régulières et la couverture de garantie.

Comportement de la boîte de vitesses 8G-DCT (changements brusques, hésitations) Low

🔧 Dès 10 000 km

💶 Souvent résolu par une mise à jour logicielle (sous garantie)

Tester la boîte à différentes allures lors de l'essai du véhicule.

Dysfonctionnements sporadiques des capteurs d'aide à la conduite (ex: parking, angle mort) Low

🔧 20 000 – 60 000 km

💶 200 – 400 € (diagnostic + remplacement capteur)

S'assurer du bon fonctionnement de tous les systèmes d'assistance.

Estimated maintenance costs

Oil change	£110 – 200
Clutch	£1 800 – 3 200 (si remplacement du pack double embrayage)
Complete brakes	£400 – 750
Estimated annual budget	£650 – 1 300

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