Polo 1.6 overheats

[Zuna]

Good day all, can someone please point me in the direction as to what activates the cooling fan on my 1997 vw polo 1.6 AEE motor? I replaced thermostat & housing, also the engine temperature switch and cooling fan. The fan only comes on when i activate the A/C.

Thanks in advance

[pontiff]

Good day all, can someone please point me in the direction as to what activates the cooling fan on my 1997 vw polo 1.6 AEE motor? I replaced thermostat & housing, also the engine temperature switch and cooling fan. The fan only comes on when i activate the A/C.

Thanks in advance

on the 1997 model the switch / relay / whatever you want to call it is under the battery tray with 2 large black connectors going to it.. they are not uncommon to pack up in the way you describe.