[spiderem]

Hello, looks like my temperature switch for the front oil cooler is no longer working on my 87' carrera.
When i put the ignition on, the fan start turning, even when the car is cold.
My questions are :
- how can i be sure it comes from the temp switch? (i have already checked the relay)
- to replace the temp switch i must remove the cooler and fan, does the oil needs to be drained for that? Or only little seepage is expected from the 2 oil lines at the connection above the front wheel, and no need to drain the oil.
Thanks.
PS: should i avoid driving with the fan turned on all the time, or actually it doesn't really matter? other than the noise and maybe the risk to "burn" the fan