A coolant/air heat exchanger core assembly (1) is described, having at
least
one meandering or serpentine coolant passage and an air passage between superimposed
plates. The coolant passage is formed by a plurality of channels (34) which
are bounded at the sides by the webs or flanges of profiles (33) with an
I-shaped or U-shaped cross-section and are connected together at their ends by
diverting sections (36) (FIG. 4).
