Filter Apparatus and Filter Element

A filter apparatus comprising a filter housing at least comprising a housing upper part and a housing lower part, which is provided for exchangeably receiving a filter element at least partly, and comprising a controller for controlling fluid flows in the housing upper part, said controller, in a blocking position, blocking a fluidic connection between a fluid inlet and a fluid outlet and, in a release position, releasing said fluidic connection, wherein, using an actuation device on the filter element, the controller can be controlled such that, when the housing lower part is disconnected from the housing upper part, the controller moves into the blocking position and, when the housing lower part is attached to the housing upper part, the release position is established, wherein the controller comprises a rotary slide valve housing with at least one coupling element, which cooperates with corresponding coupling elements on the filter element as the actuation device so as to form at least one coupling such that, when the housing lower part is attached or removed, at least one of the corresponding coupling elements in each case comes into driveable contact with each assignable coupling element of the rotary slide valve housing and this is moved from the blocking position into the release position or vice versa, with subsequent release of the relevant coupling as soon as one of the positions is assumed by the rotary slide valve housing.