Vibration damper with hydraulic traction stop for a motor vehicle wheel suspension, comprising: a container tube , a piston rod , and a hydraulic damping device with a damping piston that is attached to the piston rod and that, in an end region of a piston rod extension path, prior to reaching the maximum piston rod extension, provides a hydraulic force directed against the pulling movement of the piston rod , wherein the damping piston has a circumferential groove in which a slotted sealing ring is received, wherein the sealing ring in said end region of the piston rod extension path hydraulically seals in the groove when the piston rod moves in the pulling direction and, when the piston rod moves in the pressure direction, lifts off at least locally from a flank , on the side of the pressure direction, of the groove , which flank delimits the groove on the side in the pressure direction and points in the pulling direction, in order to provide a defined permeability for a hydraulic damping medium between the groove and the sealing ring , wherein the damping piston (11") has a piston collar (19") that limits the circumferential groove (12") of the damping piston (11") in the form of an additional flank (13"), on the side of the pulling direction, which additional flank (13") is opposite the flank (14") on the side of the pressure direction, characterized in that the piston collar (19") is reshaped at one or more points in the direction of the groove (12") in order to project axially into the circumferential groove (12") and to support the sealing ring (16") locally in an axial manner and release it in an axial manner between such points. a container tube , a piston rod , and a hydraulic damping device with a damping piston that is attached to the piston rod and that, in an end region of a piston rod extension path, prior to reaching the maximum piston rod extension, provides a hydraulic force directed against the pulling movement of the piston rod , wherein the damping piston has a circumferential groove in which a slotted sealing ring is received, wherein the sealing ring in said end region of the piston rod extension path hydraulically seals in the groove when the piston rod moves in the pulling direction and, when the piston rod moves in the pressure direction, lifts off at least locally from a flank , on the side of the pressure direction, of the groove , which flank delimits the groove on the side in the pressure direction and points in the pulling direction, in order to provide a defined permeability for a hydraulic damping medium between the groove and the sealing ring , wherein the damping piston (11") has a piston collar (19") that limits the circumferential groove (12") of the damping piston (11") in the form of an additional flank (13"), on the side of the pulling direction, which additional flank (13") is opposite the flank (14") on the side of the pressure direction, characterized in that the piston collar (19") is reshaped at one or more points in the direction of the groove (12") in order to project axially into the circumferential groove (12") and to support the sealing ring (16") locally in an axial manner and release it in an axial manner between such points. <EOS>