Filter device, filter element, configuration of a filter element, and method for identifying a filter element

A filter element for a filter device, the filter element comprising:

• a filter element body adapted for arrangement in a filter housing of the filter device, said filter element body having at one end side a carrier portion with a protuberance which protrudes in a longitudinal direction of the filter housing;
• and
• a data store disposed on or in said protuberance and storing identity data for identifying the filter element which are read wirelessly from said data store by means of a read and/or write unit, wherein said protuberance of said carrier portion is disposed centrally with respect to said filter element body.

A method for identifying a filter element using a filter device and a read and/or write unit, wherein the filter device contains a filter housing, at least one filter cover, and at least one filter element which is disposed replaceably in the filter housing and which has at least one carrier portion with at least one data store, and the at least one carrier portion extending at least partially through a passage opening in the filter housing and/or the at least one filter cover, wherein the at least one data store is disposed on or in the least one carrier portion, and identity data for identifying the at least one filter element are stored in the at least one data store, and the read and/or write unit is disposed at the passage opening in the filter housing and/or the at least one filter cover, wherein the read and/or write unit reads the identity data from the at least one data store and identifies the at least one filter element on the basis of the identity data read.