[s-cars] electric cooling fan operation

[mike schowengerdt]

there is an inline connection in the power wire to the fan , located where the 
wire dives thru the drivers frame horn in the vacinity of the headlight washer 
hoses behind the headlight , going to the ballast resistor that creates the fan 
speeds....IIRC...this terminal gets corroded and then overheats and dies, 
leaving the fan in-operable , if you have no fan operation at all this is the 
first place i would investigate , if the terminal is fried , cut it out and just 
splice w/ a heavy crimp connector

i have found this to be a more common problem than bad relays or blown 
fuses...........HTH................m



________________________________
From: ron kirkham <rkaudifool at gmail.com>
To: s-car-list <s-car-list at audifans.com>
Sent: Thu, July 21, 2011 12:04:11 PM
Subject: [s-cars] electric cooling fan operation

So yesterday I had my '93 S4 idling next to my idling '95.5 S6A. Both had
the A/C on at the time and I noticed that the S4's electric cooling fan was
not running and the S6A's was. Both cars were cold as this was early AM,
maybe 60f. What should be happening when the A/C is on and when does/should
the fan(s) kick into high?  I drove the S4 later in the day, about 90f and
still no fans with A/C on.

I'm wondering if my S4's fans have ever worked correctly since I don't
recall the fan EVER kicking into high mode. I've never had cooling problems
on the S4, but since I bypassed the leaking heater core last month, it has
been running a little hotter. Just past the fat mark at 11:00 on the dial
and hotter yet when not moving.

I recall a test for the switch by jumping the posts?, but can't find the
info I thought I had saved.

Info. appreciated.


Ron
'93 S4 248.5k
_______________________________________________
S-CAR-List mailing list
http://audifans.com/mailman/listinfo/s-car-list
http://www.audifans.com/kb/List_information