power steering hoses on 1997 BMW 328i

Do the power steering pressure hoses have to be bleed when you replace them, or you just replace them?

Asked by for the 1997 BMW 328i
The entire system has to be bled. Make sure to use Dex III or newer ATF.
I'd suggest to replace the P/S reservoir also, there is very fine filter integrated into it and it clogs easy.

thanks buddy.