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2022 BMW X3 — battery dies after the car sits for a weekend

OldSchoolDIYer812Community StarterJun 7, 20262022 BMW X3 M40iLos Angeles
Battery passes a quick test and charging voltage looks normal, but after two or three days parked the car sometimes will not crank. What is the cleanest parasitic-draw test on a modern car that takes time to go to sleep? Mostly looking for the right next step. Mileage is about 18,000.
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TorqueCommuter472Community StarterCommunity StarterJun 8, 2026permalink
Don't clear the alert just to make the screen pretty. Leave the alerts on the 2022 BMW X3 so service can see what you saw. I'd do that before spending real money. Post the numbers (or the code) and people can get more specific. I'd sleep better after that step, even if it finds nothing. If it repeats twice more I'll book time.
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