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2003 BMW X5 Question: I have a battery drain problem.Dealership and 3 mechanics can't find the source.

 

Question

WillyGK, 4.4L V8, Marietta, GA, October 17, 2012, 15:01
 Rookie

Current draw tests done twice by Dealer and BMW specialist & no problem found.If we don't plug in a charger it will drain within 1 to 3 days. Battery replaced several times. Main battery cable replaced. Secondary coolant pump replaced. Alternator replaced twice. Driver seat relay replaced. This has now been going on for over 2 years. Dashboard odometer lost pixels, cant read it or the outside temp display. Don't know if it can be related. Also get inaccurate warnings from dashboard like check engine oil, brake linings coolant level, etc. Thanks for your help.

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  • Answer #1

    EA Motors from Euro-Asian Motorcars, Inc., November 03, 2012, 11:52
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     Enthusiast

    Does your vehicle have factory navigation? I've seen mysterious battery drainage problems that lead back to the navigation module in the luggage compartment. You can unplug it and see how it affects your battery issues. Good luck.

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    WillyGK, November 05, 2012, 11:04
     Rookie

    Thanks for your response. It doesn't have factory navigation.

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