A4 AC clutch

[Marco Weibel]

You want to make sure that the system is pressurized or the pump doesn't engage ? 
Some pumps have a built in safety switch that prevent dry running/too low pressure even tho the wiring gives juice to the pump.

Marco Weibel

Sent from my iPhone

On 2012-06-12, at 12:46 AM, "Ed Kellock" <ed.kellock at gmail.com> wrote:

> I worked on my boss' 2000 A4 Avant (250k+ miles) AC tonight and believe I
> isolated the problem to the ac clutch, but apparently it is not available
> separately. 
> 
> When it should have been running and wasn't, there was 12 volts to the
> trigger wire.
> 
> With the engine off, I was able to rotate the ac compressor and it felt
> smooth.  
> 
> I thought I could just replace the ac clutch, but that does not seem to be
> the case.
> 
> If either my diagnosis is poor or anyone knows where I can get just the
> clutch, please chime in.
> 
> The ac clutch part# according to ETKA is 8d0260811a
> 
> Thanks!
> 
> Ed
> 
> 
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