Mercedes GLB X247 (2019 – 2025)

Reliability score : 8.2/10

The Mercedes-Benz GLB (X247 generation) is a compact luxury crossover SUV introduced in late 2019. Built on the MFA2 platform (shared with the A-Class, B-Class, and GLA), it stands out in the premium compact segment with its boxy, utilitarian design and an optional third row of seats (making it a 7-seater). It bridges the gap between the GLA and GLC. A mid-cycle facelift (LCI) was introduced in 2023, bringing subtle exterior styling tweaks, the latest generation of the MBUX infotainment system, and the integration of 48V mild-hybrid (MHEV) technology across the petrol engine range to improve efficiency and stop-start smoothness. Overall, it is a highly practical family vehicle, though buyers should be mindful of interior build quality variations and the complexity of its modern powertrains

✅ Strengths

Exceptional interior packaging with an optional 3rd row (rare in this segment)
High-tech and visually impressive MBUX dual-screen interior
Comfortable ride quality, especially with adaptive dampers
Strong and efficient 2.0L diesel engines (for European buyers)
Good visibility due to the boxy, upright design

⚠️ Weaknesses

Noticeable wind noise at highway speeds due to the upright windshield and boxy shape
Interior build quality issues (creaks and rattles from the dashboard, door panels, and B-pillars)
The 3rd row is very cramped, suitable only for small children (up to 1.68m tall as per Mercedes)
7G-DCT transmission on 1.33L models can be jerky in stop-and-go traffic
High cost of options and maintenance

🎯 Verdict

The Mercedes-Benz GLB is a highly compelling choice for buyers who want the premium badge and tech of a Mercedes but need the practicality of a boxy, family-friendly SUV. The petrol engines are the primary focus for most global buyers. The GLB 200 (1.33L) is perfectly adequate for city and suburban life, offering good economy, though the transmission can be slightly unrefined. The GLB 250 (2.0L) is the sweet spot for performance and highway cruising, especially in North America. Reliability is generally solid mechanically, but the GLB is let down slightly by interior rattles, wind noise, and occasional electronic glitches. Buy a well-maintained model with a documented service history, and ensure transmission services have not been neglected.