V70 cooling fan always running.

[Don Winter]

you were spot-on.just got an air con top-up and problem seems to have gone away.thanks.

[Don Winter]

spot on mate thanks-just got air con top up and problem is solved-thanks

[jellison]

Originally Posted by ASt85

Check the cooling fan relay - its mounted under the rear facing left hand side of the black cowling/housing than runs across above the radiator as you look at the car from the front.

They are manufactured to fail in the "relay closed / power supplied" ie on or 1 state to prevent the car overheating when they fail.

Hi all.
I can’t see this relay in that position on my V70R P2. Nothing link that in that area bar the plug to the actual fan.

[Clan]

Originally Posted by jellison

Hi all.
I can’t see this relay in that position on my V70R P2. Nothing link that in that area bar the plug to the actual fan.

the relay disappeared many years ago , all there is now is an electronic control unit on the fan itself , a power supply on the thick wires and a thin signal wire going to the engine ECU to control it ..

[MarvinMitt]

If the fan is always on, then I would first check the coolant temp sensor and A/C pressure sensor readings if accessible.
If the reading is anything beyond what ECU considers normal then the fan will be set to always on to avoid possible AC or engine overheating.