Mercedes GLC X253 (2015 – 2023)

Reliability score : 7.8/10

Mercedes-Benz GLC (X253) The Mercedes-Benz GLC (X253) replaced the angular GLK in 2015, adopting a smoother, more aerodynamic design language in line with the C-Class (W205) on which it is heavily based. It quickly became one of Mercedes-Benz's best-selling models globally. Positioned as a premium compact/mid-size luxury SUV, it offers exceptional ride comfort, a high-quality interior, and a vast array of powertrains. A major facelift occurred in 2019, which brought subtle exterior styling tweaks, standard LED headlights, and most importantly, the transition from the older COMAND infotainment system to the highly advanced MBUX system. Under the hood, the facelift marked a significant shift: the aging and noisy OM651 2.1L diesel was replaced by the state-of-the-art OM654 2.0L diesel, and th

✅ Strengths

Exceptional ride comfort, especially with the optional AIR BODY CONTROL air suspension.
High-quality interior materials and excellent sound insulation.
The post-2019 OM654 diesel engine is a masterpiece of refinement and efficiency.
MBUX infotainment system (post-2019) is highly intuitive and advanced.
Strong residual values and brand prestige.

⚠️ Weaknesses

Pre-facelift OM651 diesel engine is unrefined and noisy for a luxury vehicle.
Air suspension (if equipped) is prone to expensive failures (compressors, air struts) as the car ages.
Tire 'crabbing' / skipping issue at low speeds on full steering lock (very common on RHD models).
PHEV models have a significantly reduced and awkwardly shaped trunk due to battery placement.
High maintenance and repair costs, especially at official dealerships.

🎯 Verdict

The Mercedes-Benz GLC (X253) is a superb all-rounder that perfectly balances luxury, comfort, and practicality. If you are buying a diesel: We strongly recommend stretching your budget to a post-2019 facelift model with the OM654 engine (GLC 220d or 300d). It is vastly superior in terms of noise, vibration, harshness (NVH), and reliability compared to the older 2.1L OM651. General Advice: Avoid the AIR BODY CONTROL air suspension if you are buying a high-mileage example and want to keep maintenance costs down; the standard steel springs are comfortable enough. Ensure the 9G-Tronic transmission has been serviced on time. While the GLC is generally reliable, it is a complex German luxury vehicle—a comprehensive service history is absolutely non-negotiable.