I have creaky suspension! It happened once during warranty, I took a technician for a ride in the car so they could hear it first hand. They solved it by greasing the suspension mounting points - or so they told me.
Anyway it comes back again in cold weather, not all of the time so to be honest now I'm out of warranty I've been living with it. I get the occasional creak on awkward uneven turnings, like into a driveway at an angle or over a speed bump (when not head on).
My car is a 2013 (December) GTI PP. If you learn of a fix, please let me know. I'll mention it to my dealer on next service to see what they have to say.