Driver’s seat cracks

I have read about it here before, but I didn’t find a suitable Fred. With my XC70 it cracks slightly metallic from the bottom of the driver’s seat. It is clearly noticeable how the seat works with a quick change of direction or load and there is a cracking noise of itself. I had therefore already found my elk to the operating room with the friendly one. He of course found nothing and therefore could not fix the damage. My popometer still notices it and even my OHL has already noticed it (which also has something to mean). My elk is a MY2005 and therefore it is no longer like the predecessors (according to the friend’s statement), which was the previous reason for most noises in the seat. Has someone with a MY2005 similar experience? Has it been fixed with someone? Greeting Heiko