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Re: <E-34> Air Conditioner Noise

 I heard a BMW technician talking about the A/C compressor front bearing
being pressed on to the aluminum front housing of the compressor. The
aluminum eventually yields under load cycling as the compressor cycles
during use. The cure was to replace the unit when it failed with a new or
rebuilt one, or repair the aluminum through careful welding to build up the
worn surface and turn it back to spec on a lathe, then press the bearing
back on. I would go for the replacement. I've seen the repair, it requires
"some" skill.

Chris Ross
'94 525i


> Date: Mon, 24 Aug 1998 16:36:32 -0400
> From: "Brant M. Miller" <[email protected]>
> Subject: <E-34> Re: Air Conditioner Noise
>
> JG:  I do not have an explanation, but my 95 E-34 does the same thing.  I=
> 'm
> willing to consider it "normal", especially since your E-34 does the same=
>
> thing - "they all do that"!!  :-)
>
> Brant
>
> Message text written by INTERNET:[email protected]
> >Date: Sun, 23 Aug 1998 21:13:36 EDT
> From: <[email protected]>
> Subject: <E34> Air Conditioner Noise
>
> My '94 E34 has an occasional loud noise when the air conditioner compress=
> or
> clutch engages.  It is a moaning sound.  I thought it was the belt but a
> new
> belt did not eliminate the problem.  Has anyone got an explanation or
> solution.<
>

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