Hey- FYI, I posted a video for sticky reference in the DIY thread:

Anyone into DIY projects, repairs, maintenance and troubleshooting, even customizing or modifying their P-cars will find PIWIS TSI application to be very helpful. I've used the app for nearly two years now on all sorts of projects with my '14 C4S.

Cheers!

What would be really good is if you could walk through how you got an account and successfully got a credit card accepted. In USA. I can't figure out how to get the country set correctly. There is no choice for USA and therefore the credit card won't process.