Thread: 86 420sel
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Old 08-05-2007, 10:22 PM
david s poole david s poole is offline
david s poole
 
Join Date: Mar 2005
Location: dallas
Posts: 1,822
the recirc door if open will kill refrigeration capacity by a good 10deg at 90degf.i am not sure of the exact programming but when a/c is on in texas summer the fresh air door should be closed or the vent temps will not come down.i think the recirc button was designed for use when travelling through an area with offensive odours or a west texas dust storm.
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David S Poole
European Performance
Dallas, TX
4696880422

"Fortune favors the prepared mind"
1987 Mercedes Benz 420SEL
1988 Mercedes Benz 300TE (With new evaporator)
2000 Mercedes Benz C280
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