Hi guys, after a little advice. It may differ slightly as i'm in the UK so my car is RHD but which fan should be running ? I have two fans obviously and when the car has been idling for a bit then my drivers side fan kicks in to cool stuff down.

The temp never exceeds just under 50% on the needle. When i turn the AC on the same drivers side fan spins, but i'm yet to see the passenger side fan spin at all is this normal ? Is the second fan just supposed to kick in when temps get really high ?

06 Revup Z

 

Guys on the UK forum think both fans should kick in when the AC is on, yet a lad i know with a Z second fan doesn't kick in with aircon, but did kick in when he was having coolant change and his car got hot enough ?

Just need to know if both fans should kick in with air con or if the secondary fan is only there for when temps get really hot.