engineCylinder Head R&R Torque Specsfor 2012 BMW Z4 3.0L I6 · RWDUnitslb-ftNm8 fastenersSeqComponentTorqueAngle—Cover Bolts13 lb-ft · 18 Nm——Cylinder Head BoltsCritical1) 40 Nm. 2) +90 degrees. 3) +90 degrees. Always replace bolts.30 lb-ft · 40 Nm90°—Electrical Connector Bolts5 lb-ft · 7 Nm——Gasket BoltsCritical16 lb-ft · 21 Nm——Gasket Surface BoltsCriticalClean mating surfaces16 lb-ft · 22 Nm——Mounting BoltsCritical37 lb-ft · 50 Nm——Sensor Bolts8 lb-ft · 11 Nm——Sensor Mounting Bolts8 lb-ft · 11 Nm—📝 Suggest a correction to this torque spec