2017-2018 B46/B48 BMW 330i 430i 530i water pump replacement 

Great video thanks for sharing, but you changed water pump with bracket was the bracket leaking as well? Removing only the pumo is much easier

The engine doesn’t sound healthy when you put it back together. Does it still make that sound ?

You should remove the negative battery terminal before unplugging sensor connectors. It isnt 100% necessary but its just an additional level of caution. Depending on what type of repair you’re attempting, you could be in a situation where you could potentially short 12v into an unplugged cable.

Thank you for the video. Im a diy f30 owner as well but I haven’t had any water pump issues yet but now that I watched this I feel better prepared for the time when my water pump does fail. Even though I read the other comments I feel like I should still say that the sound of the engine at the end of the video sounds really wrong. Not like an internal motor problem, but like a water pump bearing or ac compressor bearing failure etc. Or a loose component that runs off the serpentine belt wiggling back and forth with the movement of the serpentine belt. Or maybe its running rough after plugging the throttle body/ air flow sensors back in?

Great DIY. 👍

It does sound different on video but the engine is still running good till this day

What is the first black block peace you remove

Are you sure you need to loosen the alternator To change the water pump ?