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Old 05-24-2020, 12:30 PM
Roncallo Roncallo is offline
88Black560SL
 
Join Date: Oct 2004
Location: CT
Posts: 3,538
Quote:
Originally Posted by Diseasel300 View Post
Try energizing the monovalve with 12V and see if you have any difference. If you do, the silver box is probably on its way out.
I did that on the car in question. No difference, But maybe I should try it on the stock 560SL. I rebuilt that system 3 years ago and that and the evaporator are the only parts I didn't replace.
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