Damper comprising a. a housing having a working chamber, b. damping fluid located in the working chamber, c. a piston unit arranged in the working chamber, having i. a piston rod having a longitudinal axis, ii. a piston fastened to the piston rod, said piston subdividing the working chamber into a first working chamber part and into a second working chamber part, iii. a through-flow duct connecting the first working chamber part and the second working chamber part, d. an adjusting unit for adjusting the damping force of the damper (1; 1a; 1b; 1c; Id; 1e; 1f), having i. an adjusting element for adjusting the effective flow cross-sectional area of the through-flow duct, ii. an adjusting actuator (89; 89a; 89c; 89f) for automatically adjusting an arrangement of the adjusting element and of the piston rod, iii. a force transmission device for transmitting an actuating force provided by the adjusting actuator (89; 89a; 89c; 89f), wherein the adjusting actuator (89; 89a; 89c; 89f) is arranged outside the housing, wherein the adjusting actuator has a motor/gear mechanism unit (108, 109, 110) situated in a housing, wherein the adjusting element has an adjusting lever oriented transversely to the longitudinal axis, wherein the force transmission device is articulated directly to the adjusting lever, characterized in that - the force transmission device has a multiple joint hinge having a first hinge lever, which is articulated pivotably by way of its first end to the output shaft of the gear of the motor/gear unit (108, 109, 110) and which is connected to a second hinge lever of the multiple joint hinge at an opposite side about the internal hinge axis, wherein the second hinge lever is connected to the adjusting lever at a second end located opposite the internal hinge axis, in an articulated manner, - the multiple joint hinge is articulated to the output shaft in such a way that the multiple joint hinge is pivotable directly via the output shaft by activating the motor/gear mechanism unit (108, 109, 110), from which a pivoting movement for the adjusting lever 63 is derived directly. a. a housing having a working chamber, b. damping fluid located in the working chamber, c. a piston unit arranged in the working chamber, having i. a piston rod having a longitudinal axis, ii. a piston fastened to the piston rod, said piston subdividing the working chamber into a first working chamber part and into a second working chamber part, iii. a through-flow duct connecting the first working chamber part and the second working chamber part, i. a piston rod having a longitudinal axis, ii. a piston fastened to the piston rod, said piston subdividing the working chamber into a first working chamber part and into a second working chamber part, iii. a through-flow duct connecting the first working chamber part and the second working chamber part, d. an adjusting unit for adjusting the damping force of the damper (1; 1a; 1b; 1c; Id; 1e; 1f), having i. an adjusting element for adjusting the effective flow cross-sectional area of the through-flow duct, ii. an adjusting actuator (89; 89a; 89c; 89f) for automatically adjusting an arrangement of the adjusting element and of the piston rod, iii. a force transmission device for transmitting an actuating force provided by the adjusting actuator (89; 89a; 89c; 89f), i. an adjusting element for adjusting the effective flow cross-sectional area of the through-flow duct, ii. an adjusting actuator (89; 89a; 89c; 89f) for automatically adjusting an arrangement of the adjusting element and of the piston rod, iii. a force transmission device for transmitting an actuating force provided by the adjusting actuator (89; 89a; 89c; 89f), - the force transmission device has a multiple joint hinge having a first hinge lever, which is articulated pivotably by way of its first end to the output shaft of the gear of the motor/gear unit (108, 109, 110) and which is connected to a second hinge lever of the multiple joint hinge at an opposite side about the internal hinge axis, wherein the second hinge lever is connected to the adjusting lever at a second end located opposite the internal hinge axis, in an articulated manner, - the multiple joint hinge is articulated to the output shaft in such a way that the multiple joint hinge is pivotable directly via the output shaft by activating the motor/gear mechanism unit (108, 109, 110), from which a pivoting movement for the adjusting lever 63 is derived directly.