Tomscar
Member
Hi Phil, maybe the wrong terminology on my part ... just an assumption because of the + 90° after torqueing?I don't think they are stretch bolts, I happily reuse them and so does my local Audi workshop. I believe they are standard 10.9 grade bolts, I'll take a look when under the car later. However the manual does say replace, so the advice on here has to be to replace.
Edit it will be obvious if the bolts removed are stretch bolts, at some point a plain turned section will be necking slightly.