engine

Harmonic Balancer Torque Specs

for 2009 BMW Z4 sDrive35i 3.0L I6 Turbo N54 · RWD

Units

9 fasteners

Seq

Component

Torque

Angle

—

Cover Bolts

13 lb-ft · 18 Nm

—

Crankshaft Pulley Bolt

Critical

Often TTY - check spec, may require impact | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

133 lb-ft · 180 Nm

—

Electrical Connector Bolts

5 lb-ft · 7 Nm

—

Gasket Bolts

Critical

16 lb-ft · 21 Nm

—

Gasket Surface Bolts

Critical

Clean mating surfaces

16 lb-ft · 22 Nm

—

Harmonic Balancer Bolt

Critical

Often TTY, may need impact | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

133 lb-ft · 180 Nm

—

Mounting Bolts

Critical

37 lb-ft · 50 Nm

—

Sensor Bolts

8 lb-ft · 11 Nm

—

Sensor Mounting Bolts

8 lb-ft · 11 Nm

—