Battery keeps draining causing multiple electrical issues?

2007 BMW X3

160,000 MILES • 3.0L • V6 • 4WD • AUTOMATIC

EDDYBGARCIA

MEMBER
1 POST

Left blinker on by itself and front headlights blinking on and off by themselves. The windshield wiper switch snapped off recently. Battery keeps draining but alternator replaced, and battery does need an outside charge up…. Certain hazard lights do come on after connecting terminals back to battery after overnight disconnect due to drainage and dead battery come morning…. Also, the front lights won’t shut off. Help!!

Jan 27, 2023 at 3:39 PM

STRAILER

✓ASE Certified Mechanic
54,837 POSTS

Okay, first is the battery older than 4 years. if so, replace the battery, if the battery is new or tested good, it sounds like you have a lighting module that has shorted out here is the location so you can see if it is warm when you touch it (system off) which will tell you the module is bad. Check out the images (below). Please let us know what happens.

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Jan 29, 2023 at 11:25 AM