engineCylinder Head R&R Torque Specsfor 2003 BMW Z4 3.0i 3.0L I6 M54 · RWDUnitslb-ftNm6 fastenersSeqComponentTorqueAngle—Cover Bolts13 lb-ft · 17 Nm——Cylinder Head BoltsCritical1) 40 Nm. 2) +90 degrees. 3) +90 degrees. Always replace bolts.30 lb-ft · 40 Nm90°—Gasket BoltsCritical16 lb-ft · 21 Nm——Mounting BoltsCritical37 lb-ft · 50 Nm——Mounting Bolts21 lb-ft · 28 Nm——Sensor Bolts8 lb-ft · 11 Nm—📝 Suggest a correction to this torque spec