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Old 04-15-2001, 06:32 PM
robaincltnc robaincltnc is offline
Registered User
Join Date: Dec 2000
Location: Mountain Island Lake, Charlotte NC
Posts: 376
Hi Everyone,
I am curious what the AC cooling temperature should be on an 86 560sl. I did a dianostic test myself and this is what I found. At idle the ac is cooling to 58degrees(high pressure is 125 and low is 25) 2000rpm the AC cools to 540(high pressure is the same)...first this a normal cooling temperature? and 2nd..when the ac turns on and the engine is at 2000rpm..the low pressure dips all the way to zero and then works its way back to 25...I have heard that this may be my expansion valve...If my AC is working as stated above should I even worry about it? Oh yes, the above was tested on an 80 degree day.

Thanks for your advice!
Rob Armstrong, Charlotte, NC
Mountain Island Lake

2004 VW Passat GLS TDI-50k
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2003 Subaru Outback 57k Silver/Black-SOLD
2005 C230K 18k Pewter/Grey-SOLD
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