This is the very best product you can buy on the market to obtain very detailed information about all electrical diagnostic characteristics of the VW-range of cars.
I bought this primarily for my Skoda Fabia but have already been using on friends vehicles to gain a true understanding of the functioning of the vehicle's computer system. I am about to make adaptations to modules, such as change the Start / Stop function on my Greenline but have not yet tried the WLAN connection to the module as my garage is not close enough to a Router.
The support from Ross-Tech is only in English (which if fortunately my 1st language) but the support I have received on some questions on their forum is outstanding.
I cannot recommend this product highly enough and should have bought one years ago when I got my first VW-range car.
Rating: [5 of 5 Stars!]
VCDS Tool HEX-NET