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  1. Constant, low fan speed - bad FSU?

    E39 M5 and E52 Z8 Discussion
    I hit a new issue today that smells like a bad FSU but I wanted to elicit the board's opinion on this. The AC works fine, but the blower speed is maybe 20% of max. speed, regardless of what fan speed I select through the HVAC controls. Is this symptom indicative of a bad FSU? One other thing...
  2. Weird Air Conditioner FSU Problem

    E39 M5 and E52 Z8 Discussion
    So I took my beast to my parents home to top up its AC gas with my father's filling equipment. I ran the AC using the MAX button for about a few minutes and then at lower speeds for 10 - 15 minutes tops while we topped up the gas. It was all fine and dandy. Later on my drive home, the cosmic...
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