in all such cases Klaus, go to the dealer, tell the parts counter what torx screw you need and wait till it comes in. If you feel it is something you will actually have to mess with again go to lowes or home depot or wherever and use the little bolt thread thing to see if you can find a very similar stainless steel Bolt. thins winter while replacing the EGR control on the shroud I had the same problem. I used long nose to twist the screw out and in. no fun.