DSTC really in there?

Hello Volvisti, report me back to the forum with a little prob. It’s about the DSTC of my V70 D5 MY 2004. Here are the facts: – EU import, France version – DSTC according to the purchase contract etc. etc. inside – also the button is labeled accordingly – symbol in the dashboard also DSTC (STC has a different symbol according to the instructions) – and also the BC speaks of DSTC, if you turn it on/off (“DSTC tire control one” – function “brake assistant” seems to be present (also DSTC component, not STC) So actually everything Palletti, DSTC in it. But recently my first ride on a closed snow cover brought me to the ponder. Because I wanted to test exactly the stabilization function in fast driven curves. Result: the elch breaks out, nix regulation, DSTC does not regulate for a moment. Hmm… for an STC it would be normal, but for a DSTC probably hardly…. Does anyone have an idea of you? Should I thank Elch for the presence of the Volvo and the DS check?