Internal combustion engine comprising cylinder block

The invention relates to an internal combustion engine (10) comprising a cylinder block (12) having a cooling liquid jacket (20) which at least partially surrounds a cylinder assembly (130) which is arranged between a cylinder head sealing plane (17) and a crankcase (160) and which has at least two mutually adjacent cylinders (13), the cooling liquid jacket (20) is divided into a first jacket part (21) away from the crankcase and a second jacket part (22) close to the crankcase by means of a barrier layer (3), the barrier layer (3) being formed by a partition (31) of an insertion element (30) inserted into the cooling liquid jacket (20), the partition extending at least partially along the periphery of at least one cylinder (13), and wherein the insert element (30) has at least one holding wall (32) extending substantially parallel to the cylinder (13) between:-a cylinder head end (301) of the insert element (30), which is arranged in the region of a cover plate (122) of the cylinder block (12), which cover p