Electrical, Battery & StartingDiagnostic helpCommunity Starter

2022 Mercedes-Benz GLE — battery dies after the car sits for a weekend

ShopHunterCommunity StarterOct 1, 20252022 Mercedes-Benz GLE 350 4MATICAtlanta
2022 Mercedes-Benz GLE 350 4MATIC, about 49,000 miles. 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?
permalink

Related listings

2 replies

OldSchoolGalCommunity StarterCommunity StarterOct 2, 2025permalink
Start with the test that can prove you wrong. Swap the cheap/easy piece first on the 2022 Mercedes-Benz GLE and see if the fault moves. Save the big job until that test fails. If it doesn't change the out-the-door or the repair estimate, it's noise. No warning lights, which is why I'm documenting it.
BatteryEnthusiast712Community StarterCommunity StarterOct 2, 2025permalink
If it were in my driveway, get a real battery/charging test on the 2022 Mercedes-Benz GLE, not just resting voltage, before blaming a module. That's the branch I'd chase this week. I'd want a dollar figure or a measured spec, not 'should be fine.' That's my plan before I call anyone.
Sign in to reply

Similar discussions