Convenience bus changed in VAG car 2015?

[Translating...]Hello guys, and sorry for speaking english, but my german is soooo bad.

So, does anyone know if there were some kind of differences made in VAG cars in model year 2015? I have used id:s in my knowlegde in several VAG cars, from years 2009-2014, and they have always worked.

Now I have a 2015 Seat Toledo, and most of the messages are the same, but door lock control is different somehow.

Before it was ID 291, had 5 databytes, I could open doors with 00 AA 00 00 00 and lock them with 00 55 00 00 00.

Now with this Toledo, ID 291 has 8 databytes, and when I press the cars unlock button I see 00 AA 00 00 00 1A 02 00.
But repeating that does nothing.
Does anyone has any experiences with very new cars? I would really appreciate that.