engine

Harmonic Balancer Torque Specs

for 2015 BMW M3 F80 3.0L I6 Twin-Turbo S55 · RWD

Units

7 fasteners

Seq

Component

Torque

Angle

—

Cover Bolts

13 lb-ft · 17 Nm

—

Crankshaft Pulley Bolt

Critical

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

133 lb-ft · 180 Nm

—

Gasket Bolts

Critical

16 lb-ft · 21 Nm

—

Harmonic Balancer Bolt

Critical

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

133 lb-ft · 180 Nm

—

Mounting Bolts

21 lb-ft · 28 Nm

—

Mounting Bolts

Critical

37 lb-ft · 50 Nm

—

Sensor Bolts

8 lb-ft · 11 Nm

—