WHEN the Mercedes-Benz GLC first arrived in Australia in late 2015, the new mid-size SUV proved to be an instant hit with customers, regularly finishing at or near the top of the premium SUV sales charts.

Four years on, and Mercedes has decided to give the GLC a mid-life facelift to keep its most popular SUV fresh against other newer, hot-selling competitors like the Audi Q5 and BMW X3.

Mercedes hasn’t tried to reinvent the wheel with the new GLC but rather refined an already well-regarded and popular product. Does the facelifted version have what it takes to retain segment leadership?