Variable-displacement lubricant pump for providing a pressurized lubricant for an internal combustion engine, comprising: a rotor with radially slidable vanes rotating in a radially shiftable control ring, the control ring being pushed by a first plunger pushing the control ring into high pumping volume direction, a first control chamber wherein the first plunger is provided being radially movable, a first pressure conduit (82,88) connecting a pump outlet port with the first control chamber, and a pumping volume limitation unit comprising: an outlet opening in a side wall of the first control chamber, the outlet opening and the first plunger being arranged so that the first plunger covers and thereby closes the outlet opening in a lower pumping volume position of the control ring, characterised in that the outlet opening being connected to atmospheric pressure via a temperature controlled valve being actuated by a thermostatic element affected by the lubricant temperature, whereby the thermostatic element pushes a shiftable valve body against the force of a retraction spring to an extended closed end position when the lubricant has operation temperature, whereby the shiftable valve body is in a retracted closed end position at cold lubricant temperatures and in an intermediate open position at intermediate lubricant temperatures. a rotor with radially slidable vanes rotating in a radially shiftable control ring, the control ring being pushed by a first plunger pushing the control ring into high pumping volume direction, a first control chamber wherein the first plunger is provided being radially movable, a first pressure conduit (82,88) connecting a pump outlet port with the first control chamber, and a pumping volume limitation unit comprising: an outlet opening in a side wall of the first control chamber, the outlet opening and the first plunger being arranged so that the first plunger covers and thereby closes the outlet opening in a lower pumping volume position of the control ring, characterised in that the outlet opening being connected to atmospheric pressure via a temperature controlled valve being actuated by a thermostatic element affected by the lubricant temperature, whereby the thermostatic element pushes a shiftable valve body against the force of a retraction spring to an extended closed end position when the lubricant has operation temperature, whereby the shiftable valve body is in a retracted closed end position at cold lubricant temperatures and in an intermediate open position at intermediate lubricant temperatures. an outlet opening in a side wall of the first control chamber, the outlet opening and the first plunger being arranged so that the first plunger covers and thereby closes the outlet opening in a lower pumping volume position of the control ring, characterised in that the outlet opening being connected to atmospheric pressure via a temperature controlled valve being actuated by a thermostatic element affected by the lubricant temperature, whereby the thermostatic element pushes a shiftable valve body against the force of a retraction spring to an extended closed end position when the lubricant has operation temperature, whereby the shiftable valve body is in a retracted closed end position at cold lubricant temperatures and in an intermediate open position at intermediate lubricant temperatures.