Looked at the oil change FAQ and have a comment, the manual write-up mentions filling the oil filter before torque however the video is silent on that step - nice if it was added.
Now back to the torque procedure on the cap. If one uses a 1/4" drive then a universal is not needed or one could use a 3/8" drive with a wobble extension. With the 3/8 if it is position correctly (just right) it can be pushed into the socket to stop any wobble, but in either case a torque can then be accomplished. I'm assuming that any angle on the torque setup will NOT yield a correct specification, just how much it will be off may be of no real concern however we are dealing with a German made part and when they say X that's exactly what needs to be done, not X +/-
Oh, very good DIY article. Thank you