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Old 06-01-2014, 02:13 PM
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Default Greetings from Dallas, TX! Need help installing B+ cable e90

Hi All,

I'm new to this forum and was hoping to get some help. I have been having some issues with the Multiple Restraint System on my 2009 BMW 328i xDrive. After using a code reader, the fault was with the battery safety terminal which I replaced. I cleared the code and it reappeared shortly after. I took it to an independent BMW shop who quoted me close to $2000 to replace the positive battery cable that runs through the car to the fuse box. I decided to replace it myself and even replaced the fuse box as I was already in there.

This still has not fixed the problem. After doing some research on the electronic systems, I've come to the conclusion that the B+ cable that plugs and snaps into the BST needs to be replaced as it has some corrosion. There is a small passage for this cable that seems to go through the wheel well. The cable isn't very long as it seems to connect to another cable that runs the length of the car. Does anyone know how to access these cables that run between the body? Any assistance would be greatly appreciated. Thank you!

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Old 06-03-2014, 01:16 AM
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Join Date: Jan 2013
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There is an open campaign/recall for the connection to the fuse block from the positive battery cable.. have you called Classic or BMW dallas to determine if your car has been updated?
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