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#1
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79 300SD intermittant AC........
Hi, just bought a 79 300SD and the owner says the AC only works intermittant usually when the defrost is button is pressed........any ideas??
also, 3 windows dont work........usually motors or regulators? thanks.... |
#2
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Welcome to the board...
I suspect this is an issue with the buttons on your dash.. My 1981 wagon only considered me pushing those buttons as " very mild suggestions".... it might come on then, maybe in 20 minutes, maybe never.... Check to see that your vacuum system is holding good vacuum . Also plenty of stuff in the archives available with the search function...sometimes faster and more complete than waiting for live answers .
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1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/diesel-discussion/10414-help-i-need-check-stretch.html http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html |
#3
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Are the buttons vacuum operated or electrical?
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#4
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I think the way they would be described is ' vacuum over electrical'.....
There are some good threads about dealing with these in the archives.... When I saw the diagnostic chart in the FSM I gave up.... sold the wagon to get the type one AC in my car...
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1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/showthread.php?threadid=10414 http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html |
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