Flüssigkeitsfilter und Filterelement eines Flüssigkeitsfilters

A liquid filter, especially fuel filter or oil filter (10), for an internal combustion engine, especially of a motor vehicle, and a filter element (54) are described. A filter housing (12, 20) is connected to a liquid conduction system. The filter housing (12, 20) has at least one inlet (14) for liquid to be filtered and at least one outlet (16) for filtered liquid. A housing pot (20) has a mounting orifice (48), on the side of which the housing pot (20) is joined by means of a housing-lid connection (24) to a housing lid (12). The housing-lid connection (24) can be locked and unlocked by means of a rotating motion of the housing pot (20) relative to the housing lid (12) about a theoretical mounting axis (30). A filter element (54) is disposed exchangeably in the housing pot (20), such that it separates the at least one inlet (14) from the at least one outlet (16). The filter element (54) in the housing pot (20) separated from the housing lid (12) can be removed from or inserted into the housing pot (20) axially to the mounting axis (30) through the mounting orifice (48). The filter element (54) can be connected to the housing lid (12) by means of an element-lid connection (84) which can be locked and unlocked. The filter element (54) is connected to the housing pot (20) by means of an element-housing connection (70) which can be joined and separated by means of an axial motion of the filter element (54) relative to the housing (20) with respect to the mounting axis (30). The element-lid connection (84) can be locked or unlocked by means of a rotating motion of the filter element (54) relative to the housing pot (20) about the mounting axis (30). A closure direction (90) of the rotating motion of the housing for locking of the housing-lid connection (24) is in the opposite direction to a closure direction of the rotating motion of the element for locking of the element-lid connection (84). A maximum torque transmittable with the element-housing connection (70) is greater than a torque required for locking and unlocking of the element-lid connection (84).