With my aux fan unplugged all was fine for a week or so. Well, this morning about 2 minutes into my drive to work the climate control system cycled on and off again just like before, clicking sound in the dash, recirc light on and off, blower on and off. The one difference this time was that it kept happening even when I shut the system off completely by selecting "0" on the pushbutton unit. I'm not sure how the monovalve works, but I wonder if it cycles even when the climate control system is off? Also, isn't there another piece to the climate control system? A black box of electrical bits that lives under the hood? Or is that black box only involved in A/C?

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87 300D 162,000 miles: It's not just a car, it's an adventure!