Wheels dissolve – Volvo sickness ???

Moin dear Volvo community Last year in spring everything started. Also this year, like the last 20 years, I mounted my wheels myself. So car (V70 I EZ 8/2000) high, winter bike down, running surfaces controlled, Alufelge (original Volvo) on it, tightened and tightened with 130 NM. After about 50 – 100 km again controlled. So far, so good. About four weeks later, the wheel is loose at the front left. In the workshop. Once again, I took the wheel down again to look at the rim. Nothing found, wheel back on it, 130 NM. Wheel was fixed for the rest of the year. This spring was the same game. However, the front wheels from last year were now mounted to the rear (same side) . Wheel bolts remained at the place. After about 1000km now the wheel broke off at the rear left! So the summer wheels were fixed again and with the wheel to ATU. Wheel was checked, everything was fine. Afterwards, I got my torque wrenches, 130 NM were reached. Since all the faults were exhausted, and then, the gun was repeated.