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Audi 80, 90, Coupe: 1988-1992 (B3) Audi 80 Radiator Questions


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Last Post: Dec 5, 2017 2:58 AM Last Post By: commandpromptwi...
Steve-H

Posts: 21
Registered: 09/14/04
Audi 80 Radiator Questions
Posted: Nov 4, 2004 1:18 PM
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Attachment audi80rad.JPG (27.2 KB)
All,
A few brief questions for you:
#1 - On the radiator, there are 5 outlets. The top I imagine is for coolant overflow, the second is for coolant intake...Now towards the bottom, I see a 1/2" outlet for which I have no idea where it should go. (the yellow cap in the picture) Anyone ? Below that is the outlet for coolant return, and the bottom threaded hole is for the aux. fan switch...Which brings me to:
#2 - In looking around, I see that this car uses a 3 terminal aux fan switch which controls a two speed fan. Sound right ? Would it be possible to find a substitute two terminal switch where it would just be ON/OFF ?
Steve-H

Posts: 21
Registered: 09/14/04
Re: Audi 80 Radiator Questions
Posted: Nov 4, 2004 1:32 PM   in response to: Steve-H in response to: Steve-H
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Actually...I may have found the answer to my second question.
I see there are two P/N's listed on AutoZone's website, one being WELLS SW509, and the other being WELLS SW1635. The SW1635 says it is "2 PRONG CONNECTIOR - WHITE STEM". Im gonna swing by there and see if it is the proper fit.

Thanks !
fast928

Posts: 4,192
Registered: 03/01/02
Re: Audi 80 Radiator Questions
Posted: Nov 13, 2004 12:11 PM   in response to: Steve-H in response to: Steve-H
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That location may get plugged or you may have the wrong radiator. You'll have to look at your existing radiator to see which is the case. You didn't give any info on the car so I couldn't even guess.

You need a three terminal switch. You have a two-speed fan which is why you need the three terminals. The two terminal switches are the old ones.
commandpromptwi...

Posts: 6
Registered: 12/05/17
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Posted: Dec 5, 2017 2:58 AM   in response to: Steve-H in response to: Steve-H
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