[mousefarmer]

I replaced the top cooling hose in a 2007 BMW 328i E90 N51 yesterday as a preventative measure. Unfortunately, it was sort of a waste of $15 because only just started getting a few brown spots inside the hose that goes to the oil filter housing side, not the other side. However, it wasn't all like chocolate licorice, brown and degraded like I expected.

Unfortunately, on the size that goes to the radiator there is a tiny nipple with one hose going to the radiator on top and a fatter one directly below. The fatter one has a plastic BMW style blowout hose connector that attaches to the bottom of the hose I just installed. This one has the black plastic starting to look brown so am assuming it will be the next one to blow out.

Does anyone know what the part number is for this hose? I looked at: https://www.realoem.com/bmw/enUS/sho...diagId=17_0350 but don't see it.

[Efthreeoh]

It's under the HVAC section. It's the feed hose to the heater core. P/N 64219178427

[mousefarmer]

Originally Posted by Efthreeoh

It's under the HVAC section. It's the feed hose to the heater core. P/N 64219178427

Thanks!

[watchout-everyone]

Good luck my guy

[Efthreeoh]

Originally Posted by watchout-everyone

Good luck my guy

It's much easier to remove the hose from underneath. Just need to remove the guard covering the fuel lines on the left frame rail.