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Hello, I have opted to replace my crankcase breather pipe since it is an inexpensive, fast, and uncomplicated procedure.
I have seen many videos, but all featured n47 engines, and the issue is located next to the oil filler cap.

I went to do my task, but there are several hoses, and I cannot locate the one I want.
I examined the realoem website, and it seems to be located underneath the air pipe. Is that accurate? Once again, I find myself impeded by a straightforward preventive duty.

Indeed, number 11, n57 is somewhat more constricted to execute than n47.

Thank you for your response, but where can I locate it? Is it located underneath that air pipe?
It is located just in front of the oil filler lid on n47 and is completely visible.

Located by the oil filler neck on the left side of the engine when seen from the front.

However, if you remove the oil filler by unscrewing it and twisting it a quarter turn, you could get access without detaching the air intake.

As stated by Sophie_Williams2001
Removing the oil filler provides enhanced access. An uncomplicated exchange.
Salutations

Indeed, on the N57, it is concealed behind the intake pipe, making it less noticeable than on the N47. You must relocate that pipe to access it.