Does this FWD Audi TT have a Quaife LSD or not?

A workshop claims to have installed a quaife LSD in this Audi TT FWD. Please observe opposite wheel when I turn the wheel facing the camera. Observe that I can can still turn the wheel facing the camera in both directions while the opposite wheel is held by someone - without any mechanical restrictions or any mechanical sounds...Can anyone tell me if there is an LSD or not?

Technorati: differential limited lsd quaife slip