Hello, dear community, I am the owner of a KNAUSS south wind, age 14 years. 2 years ago I came without problems through the TÜV – except for the gas test. Somewhere the line was leaking, so I did not get the gas badge. No problem, because I only drive to the south, at campsites with electricity connection; I simply do not need gas. Now the TÜV is standing again, and I would like to get the gas badge, i.e. I would like to have the line fixed beforehand. My questions: – What costs do I have to reckon with for the line control or repair? – Does anyone have a tip where the leak could probably be located? (I know, an “optimistic question”, but maybe there are so typical “leak jobs” at caravans or at KNAUSS south wind….) Thank you for your answers!