1992 BMW 325 Air conditioning and electrical question

1992 BMW 325
155,000 MILES • 6 CYL • 2WD • AUTOMATIC
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JOJHNS8
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1. Where is the low side A/C port on my vehicle. I have one located on the firewall on the passenger side and another close to the right front headlight?

2. I have three wires with plugs located inside the drivers door. They do not connect to the window motor or power mirror. They come from under the dash with the drivers power window wires. The only button located on the drivers door is for the mirrors. I don't have a cold weather package. What do they connect too?

Thanks for the info about the comfort relay. I replaced it and the windows now work. (:
Jun 15, 2010 at 2:18 PM
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DOCHAGERTY
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The low side port is the line that goes back to the compressor from the firewall, the plug is used for equipment not installed on your car.
Jun 17, 2010 at 8:25 AM