The present invention relates to an energy dissipation device, for example for a coupling assembly, having a bearing block (2, 3) comprising an interface (4), by means of which impact forces can be conducted to the bearing block (2, 3), and a deformation tube (5), wherein the bearing block (2, 3) comprises a first bearing support part (2) fixedly mountable to a car body (2) and a second bearing support part (3) connected to the interface (4), and wherein the deformation tube (5) comprises a section (5.1) fixedly connected to the first bearing support part (2) at its coupling plane-side end section (5b) which exhibits a widened cross-sectional area compared to a deformation tube section (5.2) disposed closer to the car body. So that in the event of a crash, the second bearing support part (3) can move toward the car body relative the first bearing support part and the deformation tube (5) with simultaneous cross-sectional widening of said deformation tube (5) without the deformation tube (5) canting in the process, the invention provides for the bearing block to further comprise a guide element (6), its coupling plane-side end section (6b) connected to the car body-side end section(3a) of the second bearing support part (3) and its car body-side end (6a) extending at least partly into the deformation tube section (5.2) disposed closer to the car body and abutting against the inner surface of said deformation tube section (5.2).