radiator fan wiring harness swap

[doubt at inwave.com (Nate Mellom)]

Foxx,
I'm did the same thing in my '81, it had a single speed fan (2 wire), I 
replaced it with a dual speed (3 wire) out of a 16v.  I just used the 2 
wires for the high speed on the fan (I figured high is better than low), 
and ignored the low speed lead.  Jump the leads with 12v to see which is 
which, I can't remember.  Early A1s don't have the relay, they rely on 
the radiator fan switch to turn the fan on, and since it only has one 
speed, it doesn't need to be controlled and directed, just on or off.
Nate


Foxx (in a box) wrote:
>   i had to replace the fan on the cabriolet. the plug on the fan only 
> had two wire connector going to it. i replaced the fan with one from a 
> parts scirocco that has three connections on it. i was just going to 
> swap the harness as well but i found that that cabriolet 1) does not 
> have an a/c relay mounted in front of the batteries like the sciroccos 
> and 2) one of the primary power connectors is different (single wire for 
> the cabriolet vs. double wire for the scirocco). as i'm thinking that 
> some of the older sciroccos didn't have the relay and/or a two 
> connection fan, i was wondering if anyone has upgraded theirs to the 
> three connection style or could help by letting me know what i'm 
> missing. thanx.
>