Hello, seems to be a common problem with defective wheel bolts. I want to describe here briefly how to change them cheaply. My wheel pins were also defective on my S40 on the front axle. According to Volvo I should change the whole wheel hub, have called extra several dealers. Individual wheel pins do not get. However, since the wheel hub is the same as with the Ford Focus I asked Ford. And look, they have some (For the Focus until 2005). the same. Exchange is very easy. Brake disc and caliper down, knock out the old bolt, the new one in, done. You only have to file the new wheel pin a little in one place. (add a bilg with on) and the old one, so that you can get it out. If you insert the new bolt you may have to turn the wheel hub a little bit, does not go in everywhere. I had introduced the bolt at approx. “2 o’clock”. The costs were very easy to manage. 1.09€ I paid and approx. . 15 minutes of work. At Volvo the exchange of the hub would have cost about 350€. If you don’t want to file anything from new wheel bolts, you can also have the old hub pressed out in a workshop, then the bolts changed and then the hub pressed in again. Then you have saved after all 230 – 250€ for a new hub. Another tip: Maybe you don’t have to pocket the bolt at all. Bie a bolt from me also didn’t grab the original wheel nut from Volvo, then I have a wheel mute R taken from Ford, they are also similar, both with the movable cone, however, the thread At Ford goes up to the front. With my Volvo nuts that was not so. Don’t know if Volvo has changed it in the meantime. I hope I could help some with this post. Greetings Marc