Type 44 Radiator Fan current draw

Ben Swann benswann at comcast.net
Tue Sep 21 20:07:14 EDT 2004

What is the nominal and peak load one can expect to see on the type 44 radiator fans.  The one I though was locking up because it blew a fuse seemed to be working as well as the others I compared it to.  It like the others seems to take a sizeable initial current draw - no actual numbers here.  During operation current is enought to get a no. 12 wire fairly hot when the wire is used to jumper the fan in relay position 12.

The mechanic who said he did a load test on it indicated it drew 45 AMP.  The 30 Amp protective fuse I had installed in the return to ground line blew after 2-3 months of operation.  I installed another 30A fuse and drover the car for some time with it not blowing.  I then replaced it with a 60 amp fuse.  What is the actual fuse that Audi put in the later type 44s with the fuse option?

Any other helpful information on the fan operation and current draw would be appreciated.  I am trying to determing if replacing this fan would be prudent.   A new fan is like $400 and though I have used fans, they seem to operate the same way this one does based upon my intial simple tests/observations.

Vehicle/Engine in question is '87 rebuilt 2.2l turbo installed in a '88 5000 quattro avant, but I assume the information spans the majority of these cars.


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