Thread: 1984 300cd
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Old 12-20-2000, 08:49 PM
Benzmac Benzmac is offline
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
Be sure that you have a new mono-heat valve insert.

Also, the vacuum getting to the system is critical.

I have seen small solder cracks in the pushbutton control units. You may want to have the system checked by a pro.
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