That's your aircon fan.
Looks like it is plugged in, I see a fair bit of corrosion in the pic, maybe check all the connections and the fuse, trace back the loom in case of damage.Ok how do I install It
I'll have a look tomorrow where mine is plumbed to and get back to you.The wire goes in to the engine bay
THanks mate I’ll have a look atIt connects to the A/C relay in the relay box under the bonnet.
The fan comes on if the A/C is on or once the vehicle's engine temperature reach 100 degrees if the A/C is off.