[Fl328iConvert]

Hello everyone, new member. Hope this is is the correct forum to ask this question.

Just purchased an 08 328i convertible 59,000 miles and am starting the maintenance repair ... loving every minute of it.

I’m stuck on a hose identification and would greatly appreciate if someone has advice ... went to the dealer for a recall and asked them to identify the hose, and they came back with the wrong part number.

Online diagrams, the hose is “greyed out” (I don’t understand why haha ).

The hose that is splitting is the one under the part labeled “1” that goes from the radiator back to the firewall.

Any guidance would greatly appreciated. Thank you in advance