I cannot figure out how to open the cover that is screwed on the metal pipe.
Has somebody solved this?
If I remember rightly, you need a tool.
Hint:
Spoiler
There should be a handy tool around somewhere ;)
Chatting with Baron Mucki should give you a clue on this one. The tool required took me ages to find as well.
I'm not sure how to do spoilers on this forum, or I'd give you the answer in spoilered format for you to use at your choice.
You need to use [hide ] [/hide ] tags - without the spaces. You can always temporarily quote other people's posts to see how the formatting is done.
Thanks Matti
paolo has already given a subtle hint so this will show the answer
Spoiler
You need to take the hand from the suit of armout in the back of the car