My 2004 Mini overheats while running the a/c and sitting idle for a short time. on 2004 Mini Cooper

I have replaced the cooling fan assembly, temperature sending unit and thermostat. The fan does not seem to come on at all. Could it be the engine control unit, or whatever the correct name is?

Asked by for the 2004 Mini Cooper
1 answer
poss blockage in raditor, have that flow tested