Cooling systems for combustion engines and alternative drives (including electric motors, fuel cells) for motor vehicles, for machines, in particular machine tools, and for mechanical and hydraulic gears, and parts for the aforesaid cooling systems, in particular cooling modules, oil modules, exhaust gas recirculation modules, coolant coolers, refrigerant condensers, charge coolers, oil coolers, water coolers, air-to-heat exchangers, ventilators and ventilator cowls, ventilator drives, ventil...