Patent ID: 6846011

Claim:
An assembly unit including a first component with at least one first detent element and a second component with at least one second detent element, and a checking device integrated into said assembly, said first and second components being movable with respect to each other such that said first and second detent elements can form a detent connection, said assembly unit being able to assume a not correctly locked state in which said first and second detent elements are in immediate vicinity of each other, but have not yet formed a detent connection, and a correctly locked state in which said first and second detent elements have formed a detent connection, said checking device, said first and second components and said first and second detent elements being constructed and coordinated with each other such that said checking device is not removable from said assembly unit when said assembly unit is in said not correctly locked state, and said checking device is removable from said assembly unit when said assembly unit is in said correctly locked state.