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2002 BMW 740i will not start

It all started when someone ripped my passenger window off. Got it replaced, not at a bmw shop, and ever since my display screen would always saty on even when I turn the car off. I didnt drive for about a week came out to start the car and it was dead. I tried to jump it with a small jump kit device however, when I plug it up the lights, radio, etc comes on but it will not start. When I turn the key it clicks rapidly and the lights dim with the clicks. Also while the jump kit is connected I cannot blow the horn. When I press the horn the lights just dim. Is this the alternator, I really hope not, or does it sound like I need to just replace the battery.

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Take your battery to the parts store and have them test it. If its an original replace it anyways batteries only have a 5 to 7 year life span. on another note when your window walked off they may have damaged a switch in the door. this may be causing your display issues.

Posted on Jan 09, 2009


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Posted on Jan 02, 2017


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