Update: Yes, radiator fan thermoswitches CAN become intermittent.

RussB · 01-21-2005, 05:39 PM

My radiator fan speed 2 has been making me wacky(er) lately. Just when I was convinced that it wasn't working, it would begin working as designed.

I replaced the relay twice, and measured voltages at the relay's coil a couple times. Sometimes it would seem okay; other times it would seem that the thermoswitch fan speed 2 conatcts weren't closing when they should (95 deg C).

Today I replaced the thermoswitch with a new one and the fan is behaving itself nicely.

I'd have thought that a simple bimetallic switch would either work or not work. However, mine worked sometimes at the correct temperature, and sometimes it didn't. Why? (Because it's an Audi?)

Randy 5ks · 01-22-2005, 09:29 AM

01-22-2005, 09:29 AM	#2
Randy 5ks New Member Garage is empty, add now Join Date: Sep 2004 Posts: 167	I hear you, I had the same exact thing happen to me, drove me nuts.. __________________

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