Knock Sensor Torque Specifications

2008-2013 BMW M3 E90 4.0L V8 S65

Labor Time:2.7 hours

🔧 Torque Values6 specifications

Component	lb-ft	Nm	Notes
Cover Bolts	14	19	—
⚠️ Gasket Bolts	17	23	—
⚠️ Knock Sensor	15	20	Torque critical for function
Mounting Bolts	23	31	—
⚠️ Mounting Bolts	40	55	—
Sensor Bolts	9	12	—

⚠️ = Critical torque value | Always verify with vehicle-specific service manual

⚠️ Some critical specs are estimated. Please verify sequence.

1990-1997 4.6L V8 Modular

2007-2012 3.7L I5

2011-2016 6.7L V8 Power Stroke Diesel

2022-2024 GT-Line Dual Motor AWD

1992-1995 1.5L I4 D15

2016-2023 2.0L Turbo I4

The primary torque specification for knock sensor on a 2008-2013 BMW M3 E90 is 19 Nm (14 lb-ft).

There are 6 torque specifications for knock sensor on the 2008-2013 BMW M3 E90 4.0L V8 S65, covering all related fasteners and components.