The fan on my wifes Rover 25 comes on when I start the engine, and stays on until it is turned off. I suspect (obviously) the temperature sensor has gone, but when I looked for it I found two sensors attached next to each other, one coming out sideways from the pipe, and the other one pointing almost downwards.
Clearly they can't be both for sensing temperature - does anybody who has worked on a Rover 25 know what the other one is for, and which one is which?
Cheers, Andy.