Home >> BMW >> 2021 >> X3 xDrive30i >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Assembly, Cylinder Head -- Repair (G01) >> 11 12 Cylinder Head With Lid >> 11 12 100 Removing and installing cylinder head (X3 4-cyl. models except PHEV, 2018-2019) >> Seal the oil duct