Hi... I have a 406 HDI on an 02 with a dead rad fan. All the factors and even Peugeot think it has a 2 wire fan, but it has a 4 wire fan that no one seems to be able to trace. There are the 2 main wires for feed and ground plus 2 small wires that wander off into the wiring loom. There is also no plug on the fan to disconnect, so it must come with a short portion of wiring loom, that is if Peugeot thought it existed :( Can anyone shed some light on this at all?? Thanks in advance, Jake :)