Presentation and problems with window lifter/ZV and power steering V70

Hello together, I am very grateful to the driver here in the MT Forum and wanted to introduce myself briefly. I am Markus, 41 years old and father of 4 children? Here in this forum I have read many interesting posts and would now like to help myself. I have to take your help today. It is about the following 2 problems: 1. the power steering has been quite difficult for some time in the stand, as soon as I give the speed of the engine a little higher (gas) everything is problemless, as well as during the ride. In the forum for the V70II I have read that there were problems with the steering gear and there has become a Simmerring or similar leaking and the hydraulics thus lost pressure. Andersherum I have read that only the servo pump had to be set / corrected. Do you know this problem with your Volvo?? How do you appreciate that one? I have opened a meeting in the driver then to the right, but I would like to have a few informations in advance so that I can “talk” to the 2nd I wanted to open the car by the way of the car, but that the ride has not been able to get high, but the lift? You have noticed that then open the car.