engine

Intake Manifold Torque Specs

for 2012 Mercedes-Benz ML550 W166 4.6L V8 BiTurbo M278 · AWD

Units

10 fasteners

Seq

Component

Torque

Angle

—

Cover Bolts

15 lb-ft · 20 Nm

—

Electrical Connector Bolts

6 lb-ft · 8 Nm

—

Fuel Rail Bolts

Critical

⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

9 lb-ft · 12 Nm

—

Gasket Surface Bolts

Critical

Clean mating surfaces

19 lb-ft · 26 Nm

—

Intake Manifold Bolts

Replace gaskets.

11 lb-ft · 15 Nm

—

Intercooler Pipe Clamps

Do not overtighten. Check for boost leaks.

4 lb-ft · 5 Nm

—

Mounting Bolts

Critical

44 lb-ft · 60 Nm

—

PCV Valve

Critical

⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

6 lb-ft · 8 Nm

—

Sensor Mounting Bolts

10 lb-ft · 14 Nm

—

Throttle Body Bolts

Critical

⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

7 lb-ft · 10 Nm

—

2012 MERCEDES-BENZ ML550 W166

10 fasteners