Whats ur car, an s1 or s2??? not sure if theres much differnce but i'll find out all i can about the wiring. I'm sure that if you bridge the two wires out on the temprature sensor this should bring in the fan via the relay, you should here a clicking noise somewhere(relay), if thats working then you need to check your feed to the relay so to make sure that theres power there.. like i said i'll try and find out whats what 2morrow n let you know mate...