Our QP has the following problem: Recently he started hissing out of the Krummer region at the cold start, one can definitely hear that there is a leak from this corner, with increasing engine temperature this improves, which has for the time being led me to conclude on a crack in the Krummer. Well, meanwhile the noise also increases with warm engine, so either the “accepted” crack gets bigger OR possibility two: Perhaps the corrugated pipe between the two Krummer halves is to blame? S It comes definitely from the Krummer region, had the box already above and lit from below with a flexible lamp to the Krummer-Hose-Tube connection. Had the problem already who? I would not like to pick the box to then determine that the Krummer in Ar… is, unfortunately, the 5 Ender Krummer can only get very hard on the fast.