Air Conditioning Diagram/Supplement?

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gmonsen
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Joined: Tue Mar 30, 2021 1:06 pm

Air Conditioning Diagram/Supplement?

Post by gmonsen »

Does anyone know where there is an electrical diagram of the air conditioning system BMW USA added onto the E12's? The reconditioned compressor works fine, when on an external power supply, but I don't know at all how to hook it up to the wiring. I should have been much more careful, when I removed the old compressor, but it wasn't working when I bought the car. I have heard that there is a few/several page supplement that BMW USA gave out with the owner's manual.
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Robert Bondi
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Location: Austin, TX

Re: Air Conditioning Diagram/Supplement?

Post by Robert Bondi »

Yes, you are correct. There is an additional schematic dedicated to A/C in the climate control section
of the factory manual (blue binder). I may need to do this from scratch on a Euro car with no A/C so it's on my mind.
Perhaps I can send you a few scans? PM me if you're interested. I don't think this level of detail is in our FAQs here.
Robert
77 530i
77 Euro 528
gmonsen
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Joined: Tue Mar 30, 2021 1:06 pm

Re: Air Conditioning Diagram/Supplement?

Post by gmonsen »

Robert... I sent you a PM, but am not sure it went out. Was in my "outbox". I wold very much appreciate a scan of the schematics related to the AC. Thanks very much.
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Robert Bondi
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Location: Austin, TX

Re: Air Conditioning Diagram/Supplement?

Post by Robert Bondi »

I saw your PMs. No problem. I've made a note to scan the schematic; hope to knock that down over the weekend and send
that to your email.
Robert
77 530i
77 Euro 528
gmonsen
Posts: 85
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Re: Air Conditioning Diagram/Supplement?

Post by gmonsen »

Thanks, Robert
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Robert Bondi
Posts: 313
Joined: Sun Jan 11, 2009 12:33 am
Location: Austin, TX

Re: Air Conditioning Diagram/Supplement?

Post by Robert Bondi »

gmonsen wrote: Thu Jul 01, 2021 2:05 pmThanks, Robert
Sent. Hope it helps your project.
Robert
77 530i
77 Euro 528
PatinaBeforePolish
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Location: Baltimore, Md.

Re: Air Conditioning Diagram/Supplement?

Post by PatinaBeforePolish »

I also recommend “Just needs a recharge” by the Hack Mechanic. Gives a good perspective on using modern ac components in vintage systems.
79 528i
gmonsen
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Re: Air Conditioning Diagram/Supplement?

Post by gmonsen »

Thanks, Robert. Maybe this should be posted somewhere here, like as a FAQ.
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Robert Bondi
Posts: 313
Joined: Sun Jan 11, 2009 12:33 am
Location: Austin, TX

Re: Air Conditioning Diagram/Supplement?

Post by Robert Bondi »

You're probably right. FAQ development seemed to have ended around 10 yrs ago - not much active web development on today's board, although there are some important, unrepresented topics.
Robert
77 530i
77 Euro 528
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