From digest.v7.n246 Tue Sep 23 19:41:56 1997
From: "RON MILLIET" <milliet_at_smrmc.com>
Date: Tue, 9 Sep 1997 09:19:52 -0500
Subject: <E30 and others> toggle switch for high speed fan
With all the talk about electrical mods, I might as well share a really
useful one for those folks lucky enough to live in the South (or anywhere
else with HOT summers).
I noticed that the 2 speed electric fan only ran in "low" on my 87 325is.
Only after a thermostat failure did the car run hot enough to engage
"high". We suffer regularly with hot, humid summers in South Mississippi.
The A/C works very hard all summer and struggles when idling or putting
around in traffic. I installed a small toggle switch in the panel over the
drivers right knee. The switch is wired in at the temp sensor on the
top/left side of radiator. So, now when it is really hot, I just flip the
switch. This drops the temp ~5 to ~10 degrees when idling or putting
around and cools the cockpit much faster. The only caveat is remembering
to turn it off when cruising on the big road.
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Southwest Mississippi Regional Medical Center