AIR SUSPENSION STRUT HAVING A SEALED CLOSURE CAP

An air suspension strut for a motor vehicle, comprising an air spring having a shock, wherein the air spring comprises an air spring cover and a rolling piston, wherein a rolling bellows of elastomer material is clamped in an airtight manner between the air spring cover and the rolling piston, wherein the rolling bellows, together with the air spring cover and the rolling piston, delimit a working chamber filled with compressed air, wherein the shock damper is supported via a damper bearing arranged on a piston rod in a pot-shaped bearing holder of the air spring cover. The closure cap seal comprises an inner sleeve and a closure part radially enclosing the inner sleeve, wherein the inner sleeve is pushed onto an end section of the piston rod, and the closure part is pushed sealingly into the bearing holder.