Abstract: A filter insert to be installed in a housing of a liquid separator has a hollow cylindrical separation element in the form of a coalescer for separating a liquid from a gas flow. A flange at an end face of the hollow cylindrical separation element can be arranged exchangeably between a cover and a cylindrical body of the housing. The flange has a support surface at a radially outer rim of the flange to be supported on an upper support region of the housing facing the cover of the housing. The flange has a guide structure determining a position of the flange on the upper support region of the housing. The guide structure is to receive a counter structure of the liquid separator. The guide structure has an axial elevation projecting away from the end face of the separation element. A liquid separator is provided with such a filter insert.

Abstract: A crankcase ventilation valve comprises a membrane element with a metal support washer and a conical spring, the end face of which acts on the support washer.