HELP!!! – Where do the sudden steering noises come from ???

Hello Elkgemeinde, I’m just back from a shopping tour, and when parking suddenly this funny noise occurs.I want to describe it like this:”easy fast bright crackling noises” (while steering in the stand, as well as during pre- and reset) This occurs even with a light and fast changing, as well as with full steering movement.It is however not the known cracking of the drive shafts!!! (This has been fixed already a long time ago) It is externally not to e no game on the wheels – no servo oil loss – etc. The S80 has just 75 tkm on the clock. Some things have been fixed. But what could that be again? Maybe:- Steering gearbox ?- Servo pump ? I’m not sure about that, because it can’t be located on the road exactly.Of course, this is also happening again when it’s Friday, 6:00 p.m., so that you don’t have a chance for a reasonable diagnosis from the dealer. And the best thing – my dealer has his workshop occupied again on Monday. Did anyone of you have an idea, or a similar known problem?I would be more reassuring if now would not necessarily follow bad answers.But still thank you for any information or assistance.