Fuel Rail Torque Specifications

1997-2003 Audi A8 4.2L V8

Labor Time:2 hours

🔧 Torque Values8 specifications

Component	lb-ft	Nm	Notes
Bracket Bolts	15	20	—
Cover Screws	8	11	—
Filter Bracket	8	11	—
⚠️ Fuel Rail Bolts	15	20	—
⚠️ Line Fittings	20	27	Use new O-rings
Mounting Bolts	20	27	—
Pressure Regulator Screws	5	7	—
⚠️ Pump Mounting	10	14	—

⚠️ = 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 fuel rail on a 1997-2003 Audi A8 is 20 Nm (15 lb-ft).

There are 8 torque specifications for fuel rail on the 1997-2003 Audi A8 4.2L V8, covering all related fasteners and components.