The Mercedes-Benz C-Class facelift has been spotted undergoing testing again, with an Estate prototype being sighted in northern Sweden by our spy photographers.

At first glance, there doesn’t appear to be a whole lot of changes aside from new bumpers at the front and back, which are covered up on the test mule. Those halogen headlamps that are fitted on lower-spec variants of the C-Class are also present, retaining their place beside the Avantgarde front grille.

A look inside reveals what we’ve come to expect, a new three-spoke steering wheel that now has a smaller centre boss, while the on-wheel buttons are of a completely different design not found on current Mercedes models.

On one of the prototypes, we get to see a new touchpad being tested as well, similar to the new COMAND touchpad controller in the W213 E-Class, although in another interior photo, the interface is retained. However, the most attention-grabbing interior highlight are the white accents you see on the steering wheel, door handles and centre console.

Of course, Mercedes has to fully reveal its new C-Class range officially, so some of the items you see may or may not be part of the production car. According to reports, the mid-life facelift is expected to arrive by mid-2017.

When it arrives, the new C-Class will benefit from with Mercedes’ latest 9G-Tronic transmission (used in the W213 E-Class), which replaces the current 7G-Tronic unit, along with updated petrol and diesel mills.