Control unit of a ride level control system, and ride level control system

A pneumatic ride level control system of a motor vehicle, having pneumatic springs which are coupled via air lines to an air supply and having actuable valves which are assigned to the air lines and can be actuated by a control unit, wherein the control unit deactivates at least one function of the pneumatic ride level control system and/or activates at least one function of the pneumatic ride level control system if a limiting value of at least one dynamic-movement variable is exceeded or undershot, keeping the or each deactivated function deactivated for a defined holding time and/or keeping the or each activated function activated for a defined holding time duration after a subsequent undershooting or exceeding of the limiting value, and subsequently ending the deactivation of the or each deactivated function and/or the activation of the or each activated function after the respective holding time duration has elapsed, wherein the control unit defines the respective holding time duration as a function of the magnitude of the exceeding or undershooting of the respective limiting value.