The fuse for load of high fan is on top of the relay..you can tell which relay by simply un-plugging the relay while the fan is ON.


The only problem is that the fan is not turning at the moment so I don't know which relay it is. I am assuming it is either the square white one or black one from my picture. Please see my picture.

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1990 Mercedes 300 SEL (320,000 miles)
1994 Mercedes E420 (140,000 miles)