Piston Rings - All Torque Specifications

1990-1991 BMW 325i E30 2.5L I6 M20

Labor Time:27 hours

🔧 Torque Values7 specifications

Component	lb-ft	Nm	Notes
Cover Bolts	12	16	—
Electrical Connector Bolts	5	7	—
⚠️ Gasket Bolts	15	20	—
⚠️ Gasket Surface Bolts	15	20	Clean mating surfaces
⚠️ Mounting Bolts	35	47	—
Sensor Bolts	8	11	—
Sensor Mounting Bolts	8	11	—

⚠️ = 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

1992-1995 1.5L I4 D15

2016-2023 2.0L Turbo I4

1995-1999 2.0L Turbo I4

The primary torque specification for piston rings - all on a 1990-1991 BMW 325i E30 is 16 Nm (12 lb-ft).

There are 7 torque specifications for piston rings - all on the 1990-1991 BMW 325i E30 2.5L I6 M20, covering all related fasteners and components.