1991 BMW 525i won't get cold

Tiny
FLYBOY97222
  • MEMBER
  • 1991 BMW 525I
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 211,000 MILES
My AC has been converted to the new R-134a and I have had a new compresser and condenser installed along with a valve that was under the dash.
My issue is that my AC won't get cold till I'm doing like 45-55MPH. I.E. The engiene is turning fast.

Any clue why
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Saturday, September 12th, 2009 AT 11:42 AM

3 Replies

Tiny
DR. HAGERTY
  • MEMBER
The older systems usually convert with a small loss of efficiency due to the heat exchangers size. Has the work been performed correctly and is the correct amount of refrigerant being used? What are the high and low side pressures? Is the auxiliary fan working? I await your response.
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Sunday, September 13th, 2009 AT 8:37 AM
Tiny
FLYBOY97222
  • MEMBER
Thank you for responding and for your response to my question about LEDs
2 hours after posting, the compressor seized, after only one year of use. The shop that installed it did a shoddy job on the install and even though I have a lifetime warranty I am hesitant to bring it back to them to be replaced.
When he installed the compressor he removed the washer fluid reservoir and ever since it has leaked and when it is full I get a message saying it's low.

There was a cascade of events that occurred yesterday that had me baffled, first in the morning my battery was dead I jump started it and then got a TRANS PROGRAM message and the BREAK FLUID light was on, after HOURS of freaking out and thinking that I'd have to have my Transmission rebuilt all I did to fix it was remove the DME relay clean the connects and it started working again.

The thing that has me baffled- The compressor clutch is seized- I can't turn it with my hand. But the fuse never blew? I'd think that the fuse would blow if the compressor has power going to it but won't turn.

Also and I assume this would be an unrelated question (although it might not be considering the current electrical problems I've experienced) there is a wire harness that connects to the fire wall then to a large round plug on the drivers side next to the fuse box in the engine compartment. I noticed that one of the wires in that harness have melted thew the insulation. Is this common on older BMWs or should I look into it?
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Sunday, September 13th, 2009 AT 10:59 AM
Tiny
FLYBOY97222
  • MEMBER
I have also looked into the auxiliary fan- I don't think I have one installed on my car.

I was wrong I have one.
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Sunday, September 13th, 2009 AT 11:04 AM

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