Exhaust gas recirculation cooler for an exhaust gas recirculation device of an internal combustion engine, in particular in a motor vehicle, - wherein the exhaust gas recirculation cooler is connectable to an exhaust gas recirculation line for the external recirculation of exhaust gas from an exhaust-gas-side of the internal combustion engine into a fresh-gas-side of the internal combustion engine, - wherein the exhaust gas recirculation cooler is connectable to a cooling circuit working with a fluid cooling means, - wherein the exhaust gas recirculation cooler has a cooler housing through which cooling means can flow through, which has at least one exhaust gas inlet, one exhaust gas outlet, one cooling means inlet and one cooling means outlet, - wherein the exhaust gas recirculation cooler contains in its cooler housing a first cooling pipe arrangement having at least one cooling pipe connecting the exhaust gas inlet with the exhaust gas outlet and a second cooling pipe arrangement having at least one cooling pipe connecting the exhaust gas inlet with the exhaust gas outlet, - wherein the cooling pipe arrangements (14, 15) are designed such that the second cooling pipe arrangement facilitates a greater heat flow between exhaust gas and cooling means than the first cooling pipe arrangement, characterised in - that in the cooler housing a partition wall separates a main cooling chamber, through which cooling means can flow and in which the one cooling pipe or the cooling pipes of the second cooling pipe arrangement runs/run, from an additional cooling chamber, in which the one cooling pipe or the cooling pipes of the first cooling pipe arrangement runs/run, wherein the partition wall contains at least one opening, through which the additional cooling chamber communicates with the main cooling chamber, or - that the first cooling pipe arrangement or the one cooling pipe or every cooling pipe of the first cooling pipe arrangement is surrounded in circumferential direction by a partition wall in such a way that the partition wall encloses in circumferential direction an additional cooling chamber surrounding in circumferential direction the respective cooling pipe or the respective cooling pipes, wherein the partition wall contains at least one opening through which the additional cooling chamber communicates with one main cooling chamber, which is enclosed by the cooler housing, through which the cooling means can flow and in which the one cooling pipe or the cooling pipes of the second cooling pipe arrangement runs/run. - wherein the exhaust gas recirculation cooler is connectable to an exhaust gas recirculation line for the external recirculation of exhaust gas from an exhaust-gas-side of the internal combustion engine into a fresh-gas-side of the internal combustion engine, - wherein the exhaust gas recirculation cooler is connectable to a cooling circuit working with a fluid cooling means, - wherein the exhaust gas recirculation cooler has a cooler housing through which cooling means can flow through, which has at least one exhaust gas inlet, one exhaust gas outlet, one cooling means inlet and one cooling means outlet, - wherein the exhaust gas recirculation cooler contains in its cooler housing a first cooling pipe arrangement having at least one cooling pipe connecting the exhaust gas inlet with the exhaust gas outlet and a second cooling pipe arrangement having at least one cooling pipe connecting the exhaust gas inlet with the exhaust gas outlet, - wherein the cooling pipe arrangements (14, 15) are designed such that the second cooling pipe arrangement facilitates a greater heat flow between exhaust gas and cooling means than the first cooling pipe arrangement, - that in the cooler housing a partition wall separates a main cooling chamber, through which cooling means can flow and in which the one cooling pipe or the cooling pipes of the second cooling pipe arrangement runs/run, from an additional cooling chamber, in which the one cooling pipe or the cooling pipes of the first cooling pipe arrangement runs/run, wherein the partition wall contains at least one opening, through which the additional cooling chamber communicates with the main cooling chamber, or - that the first cooling pipe arrangement or the one cooling pipe or every cooling pipe of the first cooling pipe arrangement is surrounded in circumferential direction by a partition wall in such a way that the partition wall encloses in circumferential direction an additional cooling chamber surrounding in circumferential direction the respective cooling pipe or the respective cooling pipes, wherein the partition wall contains at least one opening through which the additional cooling chamber communicates with one main cooling chamber, which is enclosed by the cooler housing, through which the cooling means can flow and in which the one cooling pipe or the cooling pipes of the second cooling pipe arrangement runs/run.