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Old 08-03-2020, 06:31 AM
Mxfrank Mxfrank is offline
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Join Date: Dec 2006
Posts: 3,941
All cube relays aren't alike. For some, perhaps most, Mercedes the high speed relay is internally fused. If you substitute an plain relay, the fan will have no fuse at all. The low speed relay is fused normally through the fuse box, but is sometimes a double pole relay.
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