Mercedes-AMG has unveiled the new GLC53 4Matic+ SUV, which features a turbocharged 3.0-litre inline six-cylinder engine. This model is scheduled for an Australian launch during the fourth quarter of this year (October to December).
Performance & Engine Details
Unlike the existing GLC43 and GLC63 models, which utilize a turbocharged 2.0-litre four-cylinder engine (the GLC63 also having a plug-in hybrid system), the GLC53 introduces a six-cylinder powertrain. It produces 330kW of power and 600Nm of torque, with a temporary overboost function providing up to 640Nm for 10 seconds. This positions its performance between the 310kW/500Nm GLC43 and the 500kW/1020Nm GLC63.
The GLC53 can accelerate from 0-100km/h in 4.2 seconds using Race Start mode, which is part of the AMG Dynamic Plus package. The engine, similar to the one in the CLE53, has been redeveloped with improvements to the cylinder head, intake and exhaust ports, intake camshaft, intake system, and intercooler, enhancing torque and responsiveness across the rev range.
An optimized exhaust gas turbocharger and an upgraded electric auxiliary compressor (7.5kW, up from 5kW) contribute to its performance. A 48-volt mild-hybrid system, incorporating an integrated starter-generator, provides a short-term boost of 17kW and 205Nm, and manages energy recuperation and the idle stop/start function.
Drivetrain & Dynamics
Power is transmitted to all four wheels via a nine-speed automatic transmission and a fully variable all-wheel drive system. Drivers can select from Slippery, Comfort, Sport, Sport+, and Individual drive modes. The optional AMG Dynamic Plus package adds a Race mode, dynamic drift mode, active engine mounts, red-painted brake calipers, and a Microcut microfibre-wrapped steering wheel.
The vehicle is equipped with AMG Ride Control suspension, featuring steel springs and adaptive dampers with Comfort, Sport, and Sport+ settings. Mercedes-AMG's three-stage parameter steering adjusts weight and feedback based on speed and drive mode. Standard rear-axle steering improves maneuverability at speeds up to 100km/h and enhances stability at higher speeds.
Stopping power is provided by 390x36mm internally ventilated front discs with four-piston fixed calipers, and 360x26mm rear discs with single-piston floating calipers.
Efficiency & Styling
The GLC53 achieves a combined cycle fuel consumption of 9.4-9.9L/100km (WLTP) and CO2 emissions of 214-225g/km. The GLC53 Coupe variant records 9.2-9.7L/100km and 209-220g/km, respectively. Efficiency is further supported by the all-wheel drive system's ability to decouple the front axle during moderate driving conditions.
Optional aesthetic packages include the limited-run Golden Accents Package (available with Obsidian Black or Graphite Grey Magno exteriors, featuring Techgold accents and matte black 21-inch AMG forged wheels) and the AMG Night Package and AMG Night Package II, which add various high-gloss black exterior details. The AMG Design Plus package, included with Night Package II, offers an enlarged front splitter, additional flics, and a larger rear spoiler.
Strategic Shift: A Return to Six-Cylinders
This GLC53 model marks the first instance of the second-generation GLC line-up to feature an engine other than a four-cylinder, reverting to a six-cylinder configuration previously available in its predecessors. This upgraded six-cylinder powertrain is expected to be introduced to the C-Class, with a new C53 model likely replacing the C63.
Mercedes-AMG has stated that Euro 7 emissions regulations are a factor in phasing out the plug-in hybrid four-cylinder powertrain used in the current C63 and GLC63 models.
This change also follows public criticism regarding the shift from twin-turbo V8 to PHEV four-cylinder engines in previous high-performance C-Class and GLC models.
The GLC53 will compete with models such as the BMW X3 M50.