Vibration damper and motor vehicle with active suspension

A vibration damper comprising:

• a container tube;
• a main tube arranged in the container tube;
• an intermediate tube arranged between the main tube and the container tube;
• wherein the main tube, the intermediate tube and the container tube are arranged coaxially to form a three-tube damper,
• a damper piston arranged in the main tube, wherein the damper piston is configured to be moved to and fro in an axial direction relative to the main tube,
• wherein the damper piston is attached at one end of a piston rod,
• wherein the three-tube damper comprises (i) a hydraulic end-position damping and (ii) a central valve block with two damper valve devices arranged at an end of the three-tube damper that is opposite the piston rod,
• wherein the central valve block is partially surrounded by an air spring resting on an axial support ring,
• wherein the axial support ring is connected by a single main weld seam to the container tube and the central valve block,
• wherein on a piston rod side of the three-tube damper, the three-tube damper comprises a gas compensation volume which is arranged in an annular space between the intermediate tube and the container tube.