ignition

Spark Plugs Torque Specs

for 1998 Mercedes-Benz 500SL R129 6.0L V12 M120 · RWD

Units

14 fasteners

Seq

Component

Torque

Angle

—

Air Box Clips

4 lb-ft · 5 Nm

—

Bracket Bolts

20 lb-ft · 27 Nm

—

Connector Bolts

7 lb-ft · 9 Nm

—

Cover Screws

11 lb-ft · 15 Nm

—

Engine Cover Clips

3 lb-ft · 4 Nm

—

Ignition Coil Bolt

6 lb-ft · 8 Nm

—

Ignition Coil Bolts

6 lb-ft · 8 Nm

—

Mounting Bolts

27 lb-ft · 37 Nm

—

Oil Drain Plug

Critical

Use new crush washer

26 lb-ft · 35 Nm

—

Sensor Bolts

11 lb-ft · 15 Nm

—

Spark Plug

Critical

Gap before install

15 lb-ft · 20 Nm

—

Spark Plugs - Aluminum Head

Critical

Apply anti-seize to threads

15 lb-ft · 20 Nm

—

Spark Plugs - Cast Iron Head

Critical

Apply anti-seize to threads

22 lb-ft · 30 Nm

—

Wheel Lug Nuts

Critical

Torque in star pattern

103 lb-ft · 140 Nm

—

1998 MERCEDES-BENZ 500SL R129

14 fasteners