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      04-18-2024, 05:10 PM   #4
NB STIG
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Drives: 2022 BMW M4 Comp G83
Join Date: Jul 2023
Location: SoCal

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I had the same exact issue. My car was draining the battery overnight because the interior lights were going on and off during the night. For some reason this gets worse at night when is cold or raining. Don't ask me why.

During the day, when I was driving, the interior lights would go on and off as well. I did some research online I found the same exact symptoms and the cure was to replace the door actuator. The reason I say it is most likely the driver side, but I can't guarantee, is because this is the actuator that gets used the most. Most people who drive these cars use/drive them alone. This happened to be true in my case.

Starting with the driver's side was a 50/50 chance and luckily I was correct!

I hope this helps!
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