Bart, I've been searching for a replacement EZL ignition control module for our 1991 300CE for sometime now. They can't be reconditioned ... apparently epoxy on the internal components prevents that. The Haynes Manual recommends replacing the heat conducting paste on the backside if it dries out and becomes hard. Obviously our EZL's are past that point. I'm trying to get in touch with a distant relative in Germany to search for an EZL there.

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Fred Hoelzle