Flexible duct element for the exhaust system of an internal combustion engine

The present invention relates to a flexible conduit member for the exhaust system of an internal combustion engine fitted with an annularly corrugated or helically corrugated, of an exhaust gas stream through which metal bellows and an upstream of the metal bellows disposed conduit portion, arranged in the upstream of the metal bellows line section, or on the latter, a separating device for in an outer layer of the exhaust stream entrained urea derivatives or is intended for urea from a supersaturated with this outer layer of the exhaust gas flow.