The rotary controller between the front seats has been replaced by a larger touch control pad, while voice and gesture control now also comes as an option. For the first time, there is also a standard keyless entry and start function and optional smartphone charging pad. Once again, the AMG Line adds a dash of sportiness, with sport seats and other AMG design flourishes.
As part of an extended range of driver assistance systems, the new GLC can be ordered with Mercedes-Benz’s Active Distance Assist Distronic, which monitors speed and adjusts it via automatic braking ahead of bends or junctions.
Accompanying the exterior, interior and equipment upgrades is a new range of longitudinally mounted engines, all boasting power gains and emissions reductions. They include a petrol-electric mild hybrid unit in two states of tune and a conventional diesel offering three different power outputs.
The mild hybrid driveline is based around Mercedes-Benz's turbocharged 2.0-litre four-cylinder M264 unit, which joins the GLC as a replacement for the older M274 unit. It delivers 194bhp and 206lb ft in the GLC200 4Matic and 254bhp and 273lb ft in the GLC300 4Matic.
As part of Mercedes-Benz’s EQ Boost initiative, the combustion engine in the new petrol-powered GLC models is combined with a belt-driven starter motor and 48V electric system providing an additional 13bhp and 111lb ft at engines speeds up to 2500rpm, ramping up the overall reserves of the GLC200 4Matic to 207bhp and 317lb ft and those of the GLC300 4Matic to 267bhp and 384lb ft.
The diesel models adopt the brand’s latest turbocharged 2.0-litre four-cylinder engine, the OM654. It replaces the older OM651 unit, with 161bhp and 265lb ft in the GLC200d 4Matic, 191bhp and 295lb ft in the GLC220d 4Matic and 242bhp and 369lb ft in the GLC300d 4Matic.
The initial drivelines are mated to a nine-speed torque converter automatic gearbox and a newly developed 4Matic four-wheel drive system claimed to provide added off-road ability. The driver can choose between five driving modes as part of a GLC’s new Dynamic Select system, including Eco, Comfort, Sport, Sport+ and Individual. An optional Off-Road Engineering package also brings additional Off-road and Off-road+ modes.
With the mid-life update, the GLC also receives Mercedes-Benz’s Dynamic Body Control suspension with adjustable dampers for the first time. It can be combined with a sport steering system for more direct characteristics. Also new to the GLC is an optional Trailer Monitoring Assist.
Mercedes-Benz has yet to quote any performance claims for the facelifted GLC, but claims a combined NEDC consumption figure of 39.8mpg for the GLC200 4Matic and 54.3mpg for the GLC200d, providing them with respective CO2 emissions of 161g/km and 137g/km.