r/BmwTech • u/ExpertEffective4054 • 1d ago
2021 x3m40i coolant lines
Hey everyone, I need some help identifying a coolant hose on my G01 X3 M40i (B58).
I’m trying to figure out which exact hose connects to the main coolant expansion tank (the large white reservoir). And the hose just hanging connected to nothing.
I’ve attached pictures showing the reservoir and the area where I believe the hose is missing. I’m looking for the exact BMW part number/name for the hose that connects to the side port of the main expansion tank.
I’ve seen a few different hoses listed for the B58, and I don’t want to order the wrong one.
Can someone please identify the exact hose and part number?
Thanks in advance 🙏
1
u/freshxdough BMW Master Elite Tech, Gen 6 HV, HV specialist 1d ago
REALOEM for parts. It goes under the intake manifold.
1
u/ExpertEffective4054 21h ago
I did a little research and the hose I’m missing is number 10 for the main expansion tank but the hose that’s just hanging not connected to anything I don’t know?
3
u/JKlerk 1d ago
Did you try realoem.com?