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Battery Ground Point

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Old 12-29-2021, 07:25 PM
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2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
Battery Ground Point
Hey. Could someone please take a detailed picture of the battery neg ground point in the trunk? Would like to see where it was since I removed it with my trunk floor delete/reconfigure, and now don't remember where it was originally grounded to.
Trying to track down my electrical issues and I suspect my new ground point to the body under the floor is no good.

Many thanks
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Old 12-29-2021, 09:09 PM
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There's a ground post right beside the battery.


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Old 12-29-2021, 09:32 PM
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Thanks. I don’t have any of that anymore. Pic is a little fuzzy. Is that the ground location right at the middle point of the battery? It’s just secured on a threaded stud there on the body, not frame?
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Old 12-30-2021, 08:05 AM
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Originally Posted by BLKROKT
Thanks. I don’t have any of that anymore. Pic is a little fuzzy. Is that the ground location right at the middle point of the battery? It’s just secured on a threaded stud there on the body, not frame?
Does this help? I can't get into my trunk to take a better pic right now but yeah, it's just a threaded post coming off that side wall. Not sure what's under there since it's hidden by a plastic panel underneath but it could be a bit more structure it's attached to.


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Old 12-30-2021, 10:37 AM
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Confirmed the same on my sedan. I imagine there is more "structure" to that stud on the other side of the spare tire well.

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Old 12-30-2021, 12:30 PM
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Yes those close-ups help thanks a ton dudes!
Was looking at this on my phone last night but it's much more clear on my desktop.

That's a frame rail. Will have to drill more holes, sweet.
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Old 12-31-2021, 05:52 AM
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12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG sold)
Originally Posted by BLKROKT
Yes those close-ups help thanks a ton dudes!
Was looking at this on my phone last night but it's much more clear on my desktop.

That's a frame rail. Will have to drill more holes, sweet.
And save some weight...
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Old 01-11-2022, 08:14 PM
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Welp. One ground issue solved. I love overkill.



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Old 01-12-2022, 07:36 AM
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Yeah,, Contraproductive though.
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Old 01-12-2022, 09:42 AM
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Originally Posted by swedepat
Yeah,, Contraproductive though.
Not unless OP wants to use his vehicle as a welding chassis...
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