Liquid-cooled internal combustion engine

A liquid-cooled internal combustion engine having a cylinder block and a cylinder head, each formed with an internal coolant cavity having an inlet port;

• a recirculating pump to which said cavities are connected;
• a temperature-controlled regulating device for controlling the flow of coolant through said cavities, said regulating device having an inlet which is connected to an output of the recirculating pump, a first outlet which communicates with the inlet port of the cavity in the cylinder head, and a second outlet which communicates with the inlet port of the cavity in the cylinder block, and a valve body which, depending on the temperature of the cylinder block, adopts a first position and closes the second outlet when the temperature lies below a selected value, and adopts a second position and opens said second outlet when the temperature is above this value;
• a low-pressure source;
• a pressure capsule for activating said valve body;
• and a temperature-controlled valve, said pressure capsule being connectable to said low-pressure source or alternatively to the atmosphere by said temperature-controlled valve.