I ordered a new fuse kit and several 30A strip fuses for spares, while I am waiting, I took the known good strip fuse off my 560sel and installed it to the 300sel & the blowers still do not work. The strip fuse holder looks good with no corrosion. I traced the 2 leads to that fuse as best as I could and it looks good and did not find any opens or corrosion on them.

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2001 E55

2001 E320 Sedan

2001 Subaru Legacy

2006 SLK280

2016 Subaru Outback 3.6