I have a 2006 S40 T5. Did my first cabin air filter replacement on my own. When reattaching the accelerator pedal, one of the studs ( last one) started to spin to where the nut would not thread on. I started the threading by hand and only got an eighth of a turn with a 1/4 in drive socket and it started spinning. You can't get any good force on this nut so there was not much force applied. Now I cannot get the nut on or off. Any thoughts? The warranty is still in force. Any chance the warranty would help me?

 

It sounds like the nut and or the stud stripped. I really doubt the warranty will help you. But you can always try sweet talkin them.