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      01-13-2021, 05:35 PM   #38
MLJR235
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Drives: M235I
Join Date: Mar 2019
Location: SO CALI

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Quote:
Originally Posted by Poochie View Post
You have to purchase revised bulb socket holders to attach the second ground plug.

Part number:

63217370291 (Left)

63217370292 (Right)
The back of your taillight assembly needs to have this style of socket holder. It contains the extra plug for the ground upgrade cables.

Does yours look like that?
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