Re: 90q A/C - cold enough ?

[allanm@PrimeNet.Com]

//--- forwarded letter 
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> From: "Solomon Ngan" <sngan@netaccess.on.ca>
> Subject: 90q A/C - cold enough ?

> 
> My 90q A/C works but hardly cold enough.
> 
> Is this normal for audi 90 ?  Or does it need an A/C recharge ?
> Perhaps it is related to the loud "clong"  sound associated with 
> compressor or expansion valve cycling.
> 
> _________________________________
> 
> Solomon Ngan <sngan@netaccess.on.ca>
>   '90 90q20v
>   '84 5ks
> 

Here in Phoenix, with the engine rpm above 2000 or so, after stabilising (15 
minutes or so), discharge air temp will range down to 40F (@100-110F ambient).  
At idle, temps raise to as high as 60F, depending.  60F does not feel like much 
cooling when bright sun is shining thorugh the windows.

The loud "clong" should be the compressor cycling on and off (I don't think you have 
any control valves which can cycle).  But, on most cars it is not that loud.

Take it in and have the AC system checked - even with a dark blue exterior, and 
145,000 miles, my '88 90Q works quite well, even in Phoenix.

--------------------------
Allan Morris
Phoenix, Arizona
allanm@primenet.com
-------1988--90Q----------