Unless the filter possibly changed over the years, and honestly i'm not 100% familiar with the oil filter and brand and etc.
Reason i'm saying it was after market was because when i did my own oil change the filter i purchased was from the BMW dealer and it was visibly different than the filter that was already in the vehicle. Also required a different key to open the filter plug when letting the oil drain from the filter.
I didn't bring it up to dealer because I didn't notice this issue until the next oil change was due. Wanted to see if anyone else was experiencing something similar. There's the change that the filter i purchased from the dealer was the aftermarket one, i just know they were clearly not the same.
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