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From digest.v7.n246 Tue Sep 23 19:41:56 1997
From: "RON MILLIET" <>
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.

Good luck,

Ron Milliet
Manager, Information Systems Software
Southwest Mississippi Regional Medical Center McComb, MS

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