Abstract: A method of ascertaining one or more connection states of fluid line quick connectors in a fluid line assembly is set forth. The method involves assembling the fluid line quick connectors in respective connection locations at the fluid line assembly, and involves furnishing unique identifiers, positional information, or both, of the fluid line quick connectors. The unique identifiers and/or positional information is employed in a determination of whether intended connections have indeed been properly made among the fluid line quick connectors and connection ends of the fluid line assembly. Data matrix scanning, radio-frequency (RF) signaling, or a combination of both technologies can provide the unique identifiers and/or positional information at varying times for the determination.

Abstract: A device for degassing a liquid flowing in a liquid line is provided. The device has an inlet opening, an outlet opening, and a capillary element having an inner wall surface. The capillary element extends between the inlet opening and the outlet opening. The inlet opening is connected in a fluid-communicating manner to the outlet opening and is connected in a fluid-communicating manner to the liquid line. The inner wall surface has a material that is liquid-repellent for a liquid flowing in the liquid line. A device is thus provided for degassing a liquid flowing in a liquid line that reduces the time needed for degassing.

Abstract: An angle piece for fluidically connecting fluid lines of a vehicle. The angle piece has a channel portion for altering a flow direction of a fluid about an alteration angle. An input flow direction of the fluid into the angle piece and an outlet flow direction of the fluid from the angle piece form limbs of the alteration angle. At least one guide element is arranged in the channel portion, which guide element protrudes into the channel portion. The at least one guide element altering the flow direction of a part of the fluid by the alteration angle. The angle piece thus has a low pressure drop.