Air Injection Check Valve Torque Specs

for 2019 BMW Z4 M40i 3.0L I6 Turbo B58 · RWD

Units

7 fasteners

Seq

Component

Torque

Angle

—

Cover Screws

8 lb-ft · 11 Nm

—

Exhaust Flange Bolts

Critical

Apply anti-seize

33 lb-ft · 45 Nm

—

Flange Bolts

Critical

37 lb-ft · 50 Nm

—

Hanger Bolts

16 lb-ft · 21 Nm

—

Heat Shield Bolts

7 lb-ft · 10 Nm

—

Mounting Bolts

21 lb-ft · 28 Nm

—

O2 Sensor

Critical

Apply anti-seize to threads only

33 lb-ft · 45 Nm

—

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2019 BMW Z4 M40I

7 fasteners