An operating fluid container for a motor vehicle, having the following features: - the operating fluid container has a refueling venting device for venting an operating fluid container interior during a refueling operation; - the operating fluid container interior is at least indirectly fluidically connected to the surroundings of the operating fluid container by means of the refueling venting device when a vent of the refueling venting device is not closed; - in the installation position and horizontal orientation of the operating fluid container, for a predefined nominal volume of operating fluid within the operating fluid container interior, the vent of the refueling venting device is closed as a result of the operating fluid level in the operating fluid container interior, so that gas exchange between the operating fluid container interior and the surroundings of the operating fluid container is prevented by the refueling venting device, as the result of which a filling stop of a filling operation of the operating fluid container may be initiated, - the operating fluid container has at least one partition (21, 22) that is situated in the operating fluid container interior and is in contact with an inner surface of a container ceiling of the operating fluid container, and extends in the direction of a container floor opposite the container ceiling; - the partition (21, 22) together with the container ceiling forms a gas-impermeable air space that is separated by air from a vent space in which the refueling venting device is situated, when a level of the operating fluid in the operating fluid container interior is high enough that a lower edge of the partition (21, 22) facing the container floor is immersed in the operating fluid present in the operating fluid container interior; wherein the operating fluid container is characterized by the following features: - the partition (21, 22) is dimensioned and positioned in such a way that, regardless of an arbitrarily oriented inclined position of the operating fluid container of up to 20°, a filling volume of the operating fluid present in the operating fluid container interior is between 90% and 110% of the nominal volume of the operating fluid container when closing of the vent is initiated by the operating fluid level during a filling operation. - the operating fluid container has a refueling venting device for venting an operating fluid container interior during a refueling operation; - the operating fluid container interior is at least indirectly fluidically connected to the surroundings of the operating fluid container by means of the refueling venting device when a vent of the refueling venting device is not closed; - in the installation position and horizontal orientation of the operating fluid container, for a predefined nominal volume of operating fluid within the operating fluid container interior, the vent of the refueling venting device is closed as a result of the operating fluid level in the operating fluid container interior, so that gas exchange between the operating fluid container interior and the surroundings of the operating fluid container is prevented by the refueling venting device, as the result of which a filling stop of a filling operation of the operating fluid container may be initiated, - the operating fluid container has at least one partition (21, 22) that is situated in the operating fluid container interior and is in contact with an inner surface of a container ceiling of the operating fluid container, and extends in the direction of a container floor opposite the container ceiling; - the partition (21, 22) together with the container ceiling forms a gas-impermeable air space that is separated by air from a vent space in which the refueling venting device is situated, when a level of the operating fluid in the operating fluid container interior is high enough that a lower edge of the partition (21, 22) facing the container floor is immersed in the operating fluid present in the operating fluid container interior; - the partition (21, 22) is dimensioned and positioned in such a way that, regardless of an arbitrarily oriented inclined position of the operating fluid container of up to 20°, a filling volume of the operating fluid present in the operating fluid container interior is between 90% and 110% of the nominal volume of the operating fluid container when closing of the vent is initiated by the operating fluid level during a filling operation.