Dornish4561

after a long drive , i seem to have slight oil residue coming off the front bumper grille . Around the top right hand side area . i also have a boost leak i believe , so I'm thinking hole in the intercooler causing the oil residue maybe ?  

7 minutes ago, Steve Q said:

Cliff could be on to something there. Let's face it, no one creates extra work by fitting additional wiring if there's wiring there, unless the old wiring can't take the extra power. 

the original fan shroud was a factory twin fan i assume its one cooling fan the the other works with the AC . i Will be doing full testing etc before anything , just i would prefere the fans to work off the natural plug that the original shroud plugged in to . 

1 hour ago, cliffcoggin said:

I can't help with the details of the wiring. Have you looked on line for wiring diagrams? I know I have seen them in the past.

It would be worth checking if the car's original wiring will withstand the extra current resulting from using two fans.

The only diagram i could find , with out uploading pictures , quotes the 2 thin wires on the plug being low speed relay . The to thick wires being high speed relay 

the electric fans are installed , as the car has a upgraded bigger radiator .  The wiring is wired to a toggle switch for the fans , i want to redo the wiring to the original plug that plugged into the old fan shroud.

hi i have a 2007 a3 1.9tdi , the previous owner has done a twin electric fan conversion on the radiator.   I am not keen on the way the wiring is done and would like change the wiring and tidy it up more . question is does anyone have a wiring diagram for this . or nos what the  colors of the fan shroud plug are . number 1 is a thick red wire , 2 is a thin black wire , 3 is a thin green wire and 4 is a thick brown wire . any help would be appreciated please.