Soooooooo, I changed the final drive oil just now and when I unscrewed the fill cap, I thought it was way to loose. So after fill up, I tightened it a teensy weeny bit more and SNAP!!!!
I beheaded the cap but was able to unscrew the lifeless thread still stuck inside thank god!. I̶ ̶l̶o̶o̶k̶e̶d̶ ̶u̶p̶ ̶t̶h̶e̶ ̶t̶o̶r̶q̶u̶e̶ ̶v̶a̶l̶u̶e̶ ̶a̶f̶t̶e̶r̶w̶a̶r̶d̶s̶ ̶a̶n̶d̶ ̶ I saw that the torque value was only 8nm, which I find odd for such a large bolt and fairly important function, but oh well...
Damage costs: €32,18 for a freaking bolt excl. O ring... I can pick it up tommorow if the order is processed today, so fingers crossed.
Can anyone recommend an affordable and reliable brand of torque wrenches? I never looked into these things but no way I'm doing this in the near future without one... Most of the ones I saw at any hardware store are well over 60,- which I find ridiculously expensive for a once a year usage.