engine
Cylinder Head R&R Torque Specs
for 2009 BMW Z4 3.0L I6 · RWD
8 fasteners
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Cylinder Head Bolts
Critical1) 40 Nm. 2) +90 degrees. 3) +90 degrees. Always replace bolts.
30 lb-ft · 40 Nm
90°
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Electrical Connector Bolts
5 lb-ft · 7 Nm
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Gasket Surface Bolts
CriticalClean mating surfaces
16 lb-ft · 22 Nm
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