Hai guys, i need help...

My VIOS 2012 got overheat issues, coolant from engine got push into spare tank.
Means engine got empty but spare tank full. the coolant do not rotate back to engine. i have to topup engine coolant manualy.

1. I went to OFFICIAL Toyota SC, they said the radiator fan got problem, so need to change motor and blade. No leaking, pressure test also OK.

2. Then i went to other NOT OFFICIAL Toyota SC, they said change waterpump, thermostat, clean radiator. Fan is OK, No Leaking. I also thing fan is OK since i test it myself.

So i did No. 2, Change waterpump, thermostat, clean radiator and new coolant. But after few days overheat issues happened again.

Now im ready to change the Radiator Fan.

anyone had the same experience and know the solution? please let me know...

from my googleling most suggest No. 2, that why i did that.