AUDI A3 2017 maps update

Hi all,
i'm looking for the 2017 maps (and eventually the firmware) update for my audi a3 8v.
here my currently sw version and nav db:
SW version: MHIG_EU_AU_P1531
and this NAV DB: V03959800PT 0098 ECE 2015.

i'm not really sure about the type of my device (3g, 3gp and so on), probably it is 3gp (i have the touch trackpad).

looking in the web i've not found many informations about this kind of update. this firmware is not mentioned so much, this is the reason i'm asking some help to an expert mate.

Thanks in advance :)