btc4048 0 Posted May 1, 2004 My engine over-heat light kept coming on, so I looked and the cooling fan is not coming on. I assume this is the porblem. I checked Impex Parts and it showed these switches. Which is the one that I would for a 91 US-Spec G60? Where is the switch located and is it hard to replace? Sorry for all the questions... I am still learning. #191959481C Your Price: $13.19 Radiator Fan Switch 3 Prong 102-91c / 95-84c #191959481C-75 Your Price: $14.33 Radiator Fan Switch 3 Prong 75c #321959481 Your Price: $16.99 Radiator Fan Switch 3 Prong 93-88c / 85-80c #32195948175 Your Price: $10.00 Radiator Fan Switch 3 Prong 75 Degree Quote Share this post Link to post Share on other sites
GCDG60 0 Posted May 6, 2004 i think the switch is on the side of the raditor, not sure about the us part number, the switch is £17 from vw however, mine went last week, it was just the thermo switch. check the fuse for the fan tho as thats blown on me before mike Quote Share this post Link to post Share on other sites
Henny 0 Posted May 6, 2004 I've just had a similar problem with my new engine... Test your fan, wiring and switch before changing anything... ;) Here's how... 8) Stand at the front of the car with the bonnet open. Look down the righthand side of the radiator inside the engine bay next to the battery tray. About 3/4 of the way down the radiator there is a brass plug with an electrical multiplug on it. This is your fan thermo switch. 8) Remove the electrical connector, and, with the ignition switched on, connect a piece of wire between the RED wire and the RED/WHITE wire... The fan should start spinning... now disconnect the wire and re-connect it between the RED and the RED/BLACK wire... The fan should start spinning, but quite a bit faster than last time... If this all works, then you have a broken thermo switch. Simply unscrew it, and replace it with another one the same (only not broken! ;) ) They have the temp range they are supposed to switch at stamped into the side of them, so you can identify which one it is you need to get from your list above.... If the previous tests do not make the fan spin on either speed, check that there is +12V on the RED wire which is supposed to connect to the thermo switch. If there isn't then you have a broken wire or possibly a dead fuse. If it only span on one speed, or didn't spin at all, then you've probably got a dead fuse... but here's how to check the wiring and the fan too... If there is 12V on the red wire, disconnect the multi plug from the fan on which there are 3 wires, Brown (-ve) Red/black (high speed +12V) and red/white (low speed and fan run on +12V) Again, with the ignition on, connect a bit of wire between the red and the red/white on the thermoswitch wiring. you should now get 12V between the red/white and the brown on the fan wiring... now do the same for the red and red/black... you should now get 12V between the red/black and the brown on the fan wiring... If you don't get 12V on either of these tests, you have a dead fuse, or possibly a broken wire. If you get 12V on BOTH of these tests, then you need a new fan. :| I found that I was only getting around 8V from either of the 2 feeds to the fan motor which was causing my over heating... I've solved this with a simple wiring loom with a relay... now my fan (which is an aftermarket one anyway) kicks in flat out at the lower temp or on overrun, and is wired to also come on flat out on the higher temp in case the thermoswitch fails on the lower setting so I don't go into meltdown... ;) Hope this all helps... 8) Good luck! Quote Share this post Link to post Share on other sites
