This genuine BMW coolant hose connects the B48P/B48R engine cylinder head to the coolant expansion tank shut-off valve on U11 X1 and U10 X2 28i/M35i models.
This part is listed by BMW as BMW part number 17125A0C5A2 (17-12-5-A0C-5A2) and is described as Coolant Hose (B48P/B48R Cylinder Head to Shut-Off Valve).
BMW Fitments:
X1 Series
U11 X1 (2023+) > X1 xDrive28i B48P (2023+)
U11 X1 (2023+) > X1 xDriveM35i B48R (2023+)
X2 Series
U10 X2 (2024+) > X2 xDrive28i B48P (2024+)
U10 X2 (2024+) > X2 xDriveM35i B48R (2024+)