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      08-07-2021, 11:00 PM   #5
capt_slow
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Drives: 2017 F31 328d
Join Date: Oct 2013
Location: SoCal

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Quote:
Originally Posted by Mikej0h View Post
Fuel filter is also on that location.
it's at the middle of the car left side, after you remove the under tray.
Perhaps that has some (old) diesel (... or the tray itself) that has some blow by of air.
I put the car up in the air again and looked around the fuel filter, it looks clean:



I pulled the rear-driver wheel and took a more in-depth sniff test and it's definitely coming from this area near the rear subframe mount. Brake lines look clean and the bleeder valve is clean too:


I took a clean rag and wiped the fuel tank where I could, all that came off was just dust. I'm more perplexed by this every time I look into it.

On another note, that indy shop must have lost a few screws when they took off the splash shield for the fuel filter change, as I found two of these silver ones holding it up. Thankfully, I have a few proper spares to put back in.
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2017 328d xDrive Sports Wagon: Estoril Blue, Black Sensatec, M-Sport Pkg
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