[urq] A/C issues

[Patrick Carlier]

IIRC the ur-q doesn't have a high pressure cut out switch .
At least mine doesn't , or better mine didn't .

So if it cycles , I suspect you're low on refrigerant .

The low pressure switch is located on the evaporator behind the glove
compartiment .
You could measure the voltage across it to see if that causes the cycling .
Another possible cause  is the temperature  to low sensor wich is located
right next to it .

Otherwise , I think you'll need to put the gauges back on .

Pat



----- Original Message -----
From: "Gary Brown" <gmbchef at sbcglobal.net>
To: <urq at audifans.com>
Sent: Wednesday, June 27, 2007 2:40 AM
Subject: [urq] A/C issues


> Hey guys.
>
>     My A/C is acting funny. Its an R12 system converted to R134a 3 years
ago. I had it working pretty good ( 38 F out the center vent on a hot sunny
day) before it went into the body shop. After 2 years there it still worked!
>      I had my brother in law check it when I went to Carlisle, and it had
90lbs on the low-pressure side, static, at about 75 F. I got distracted (
had to cook for a dinner party of 8 that night!) and left the gauges
installed, and lost 20lbs out of the low pressure side.
>      We charged it back up, and now, a couple weeks later, at idle and
only at idle,  the compressor cycles rapidly as well as the vacuum switch,
independant of each other. It still blows fairly cold and will keep the car
comfortable on a hot sunny day on the highway, but I'm wondering if this is
a symptom of overcharge.
>
>   Thanks!
>
>    Gary
> _______________________________________________
> Audifans urq mailing list
> Send posts to: mailto:urq at audifans.com
> Manage your list connection: http://www.audifans.com/mailman/listinfo/urq
> Have an urq question?  Check the Audifans Knowledgebase!
> http://www.audifans.com/twiki/bin/view/Audi/UrQuattro
> Have an urq answer? ... Please help others by adding to the KB ... all
contributions welcome!
>