1992 BMW 325 Air conditioning and electrical question

1992 BMW 325
155,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
JOJHNS8
  • MEMBER
  • 6 POSTS
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
Advertisement
Avatar
DOCHAGERTY
  • ✓ASE Certified Mechanic
  • 9,606 POSTS
  • ASE Certified Mechanic
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
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.