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GLE Class (W166) Produced 2015-2019

drains the main battery in 2 days of non-driving

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Old Feb 22, 2025 | 04:23 AM
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GLE 350d
drains the main battery in 2 days of non-driving
Hello, can anyone help? - It won't charge my small battery, and it drains my main battery in 2 days of not driving. GLE 350d 2017
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Old Feb 22, 2025 | 07:58 PM
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bone stock E55 AMG
moved to W166 forum...
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Old Feb 23, 2025 | 08:03 AM
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2016 GLE 300d 4-Matic
Check all of your interior lights. It's easy to turn one set of them on when you're trying to do something by feel on the overhead console. The map lights and rear cargo area lights are the ones I most often turn on accidentally.
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Old Feb 23, 2025 | 08:40 AM
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Is your main battery the OE that's now 8 years old?
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Old Feb 23, 2025 | 12:16 PM
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2016 GLE 350 4-Matic
But even if he left everything on, after 10 minutes, all the circuits will be turned off automatically….
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Old Feb 24, 2025 | 08:18 AM
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Ya I recommend changing the battery too, unless the battery test checks out? Check the aux battery too if it has one (or is that the small battery that you are referring to?)
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Old Feb 24, 2025 | 08:28 AM
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Are there signs of parasitic drain by chance?
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Old Feb 25, 2025 | 04:18 AM
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GLE 350d
I have replaced both the main and auxiliary batteries with new ones.
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Old Feb 25, 2025 | 08:04 AM
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Originally Posted by John Ha
Check all of your interior lights. It's easy to turn one set of them on when you're trying to do something by feel on the overhead console. The map lights and rear cargo area lights are the ones I most often turn on accidentally.
Originally Posted by KenanKemal
I have replaced both the main and auxiliary batteries with new ones.
As a fix? Let us know if this remedies the problem.
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