[s-cars] Engine Management shuts off AC?

[Bob DG]

I have the same problem, though it is related to the electric rad fan, 
intermittently works- even when ac is off. coolant heats up when idling in 
traffic...

>From: "Toborg Michael (AC-SM/ESC3) *" <Michael.Toborg at us.bosch.com>
>To: <TMULLANE at snet.net>
>CC: s-car-list at audifans.com
>Subject: RE: [s-cars] Engine Management shuts off AC?
>Date: Tue, 26 Jul 2005 10:02:01 -0500
>
>Hmm, I hear this limits boost also. Hope I can fix my AC and get some
>extra power. That would be nice.
>-Mike
>
>-----Original Message-----
>From: TMULLANE at snet.net [mailto:TMULLANE at snet.net]
>Sent: Tuesday, July 26, 2005 11:35 AM
>To: Toborg Michael (AC-SM/ESC3) *
>Cc: s-car-list at audifans.com
>Subject: RE: [s-cars] Engine Management shuts off AC?
>
>Sounds like a bad MFTS (multifunction temp sensor).
>One of its jobs is to prohibit the AC from coming on
>if engine temps are too high.  The sensor is located
>in the water manifold just above the thermostat.
>
>Tom
>
>Date: Tue, 26 Jul 2005 07:57:11 -0500
>From: "Toborg Michael (AC-SM/ESC3) *"
><Michael.Toborg at us.bosch.com>
>Subject: [s-cars] Engine Management shuts off AC?
>To: <s-car-list at audifans.com>
>Message-ID:
><18CC350E919CE04A831B9CCE2B88700643552C at sbdmail09.us.b
>osch.com>
>Content-Type: text/plain; charset="us-ascii"
>
>Still sweating in my 95 S6...
>Used diagnostic channel #52 yesterday to try and
>figure out why the AC
>doesn't work, and I got segment d3 to light up.
>Bentley says this is
>"Engine management system" It pretty much turns off
>the compressor as
>soon as it comes on. When driving I can feel a slight
>hesitation when
>the compressor cycles... The electric fan seems to be
>working fine.
>
>So what does this code mean? What part of engine
>management system is
>shutting off the AC?
>I gues a VAG tester might be the next tool to use...
>
>Thanks!
>
>
>
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