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Old 08-19-2012, 10:00 AM
320kplus 320kplus is offline
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Location: Ohio
Join Date: Aug 2012
Posts: 22
Mein Auto: 98 e39 540i
Originally Posted by bluebee View Post
For the cross-linked record, JimLev provided a nice adjunct to cn90's previous suggestion on how to test the blower motor versus the FSU in this thread today:
- E39 (1997 - 2003) > Help!!!!!!!!!!!!!!!!!!!!!!!!!!

BTW, notice this statement is relevant to dead batteries:
"You don't need to have the key on to check the blower motor, 12 volts is always at the FSU connector."
Wow! This is just what I was looking for. I replaced my FSU about two and a half years ago and it just went out so I just replaced it again. It worked for a few days in the same manner as the old one and now has completely died out. This will help determine if it is the blower motor or just a bad brand new FSU. Thanks. Will update.