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Hi all, car is a 1988 S4 Auto. During my recent HVAC refresh I proactively replaced the Blower Resistor Pack with the new Porsche part 928.616.101.00 with cage. My original part did not have the cage and while I had other HVAC issues before, I never suffered from Magic Blower Syndrome. During install I read multiple instructions that Pin 8 needs to be removed and Pin 6 put in it's place in the wiring harness. I installed it with these instructions but could only get the fan to work when turned to "4" or top speed.
After troubleshooting, I decided to try the new part with the pins put back to stock setting before reinstalling the old part. To my surprise, the new resistor pack works perfectly with the stock wiring layout, no need to adjust pins. Do you think Porsche has revised this part so that the rewire is no longer necessary? Just sharing my experience as all fan speeds have now been restored.
I changed mine out a few days ago on my 1986.5, the blower was only working on High or Defrost.
So I pulled the connector and plugged in a new one, all speeds now worked! So I went ahead with the installation (I did not move any pins around).
Using some weed wacker string it took about 15 minuets. Note: with this method get the top screw started then remove the string as the new unit won't fit in the hole with string attached.
Note: same part number as you have shown.
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Blower Resistor Pack - Part 92861610100 Revised?
