1991-1995 BMW M5 E34 O2 Sensor - Upstream Torque Specs

3.5L I6 S38

Applies to 1991, 1992, 1993, 1994, and 1995 BMW M5 E34

Labor Time:0.7 hours

Torque Values (10 specifications)

Component	Nm	lb-ft	Notes
⚠️ Flange Bolts	55	40	—
⚠️ Flange Bolts	54	40	Apply anti-seize
Hanger Bolts	23	17	—
Hanger Bolts	23	17	—
Heat Shield Bolts	16	12	—
⚠️ Manifold Nuts	39	29	Apply anti-seize
Mounting Bolts	31	23	—
⚠️ O2 Sensor	55	40	Anti-seize threads
⚠️ O2 Sensor	55	40	—
⚠️ O2 Sensor	54	40	Apply anti-seize to threads

The primary torque specification for o2 sensor - upstream on a 1991-1995 BMW M5 E34 is 55 Nm (40 lb-ft).

There are 10 torque specifications for o2 sensor - upstream on the 1991-1995 BMW M5 E34 3.5L I6 S38, covering all related fasteners and components.