[W126 Coupe] Air Conditioning Diagnosis

[Dan Landiss]

on 6/11/2007 6:57 PM Dick Spellman wrote:

> Please view this link and dependent on the refrigerant you are using 

> (please let me know) see if your 25psi reading was in spec for 90F 

> outside on the day you tested low pressure.  Also was the car at idle 

> or at 1200-1500 rpm when testing?


R12, about an 80F day so the pressure could have been lower. To pull it 
down that far require raising the RPM to maybe 1500.


> If you can, let me know what the engine coolant was reading too and 

> when was visco clutch last replaced (miles) and did the electric fan 

> ever kick on???


Normal coolant, I don't think the electric fan came on (will it, with 
the bonnet raised?)


> Does compressor stay engaged over say a 10 minute period or is it 

> cycling on and off with frequency? 


Stays engaged.

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"We have become morally ill because we have become accustomed to saying one thing and thinking another."  --Vaclav Havel <http://www.landiss.com/civillib.htm#1Jan90>

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