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Old 02-07-2013, 09:03 AM
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Fudman Fudman is offline
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Location: Sudbury, MA
Join Date: Apr 2007
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Mein Auto: '02 530i Sport auto
Originally Posted by vatoman View Post
With my issue I bought an oe fsu. However I still have a drain. I agree I did the ccv and would rather do that again lol. My problem its say its not the fsu but something else on that circuit. How are we going to do that. Also ota it just me or its there an abnormal amount of battery drain post as of late.

How many mile do you have? I'm just under 79k

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I have about 110K. And while by all rules of logic, your FSU should be fine since you replaced it recently with a new OE FSU. However, we are dealing with an electrical item which means the rules of logic and physics do not always apply. I would still pull your FSU and check it out. It is the only really accesible component on the heater blower circuit that has a history of causing this exact failure.
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