It could me any number of problems... control arm bushing, tie rod bushings, strut mount bushings, etc. You could always check and see if theirs any loose bolts. While your doing that, look at the bushings themselves. Are they cracked or hard? Depending on your driving habits and the environment, they are know to go bad, but I can't see that happening to a 2012...still so young. But I wouldn't rule it out.I have a 2012 GTI and it now has a knocking sound in the front suspension and I was wondering if anyone has the same problem or if they know what it might be?