my battery died one day and my phone was unable to connect. I wiggled the bluetooth module wires in back and looked at the fuses and re-seated them. It started working again but when my phone isn't connected, the light is always red. I believe it used to disappear after a few seconds. I'm having some battery drainage issues as well. One user did report that his 'telephone module' had to be replaced. I'm still in the diagnosis phase. My advice to you, check your connections and fuses.

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2005 x5 4.4i sport