1989-1993 BMW 535i E34 SCR Catalyst Torque Specs

3.5L I6

Applies to 1989, 1990, 1991, 1992, and 1993 BMW 535i E34

Labor Time:0.8 hours

🔧 Torque Values5 specifications

Component	lb-ft	Nm	Notes
Cover Screws	9	12	—
⚠️ Flange Bolts	40	55	—
Hanger Bolts	17	23	—
Mounting Bolts	23	31	—
⚠️ O2 Sensor	40	55	—

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

⚠️ Some critical specs are estimated. Please verify sequence.

2011-2016 6.7L V8 Power Stroke Diesel

2016-2019 5.0L V8 Cummins Diesel

2019-2024 2.0L I4 Diesel OM654

1997-2000 2.8L I6

2006-2008 3.2L VR6

2008-2010 6.4L V8 Power Stroke Diesel

The primary torque specification for scr catalyst on a 1989-1993 BMW 535i E34 is 12 Nm (9 lb-ft).

There are 5 torque specifications for scr catalyst on the 1989-1993 BMW 535i E34 3.5L I6, covering all related fasteners and components.