ignition

Spark Plugs Torque Specs

for 2009 Mercedes-Benz SLK55 AMG R171 5.4L V8 M113 · RWD

Units

14 fasteners

Seq

Component

Torque

Angle

—

Air Box Clips

4 lb-ft · 5 Nm

—

Bracket Bolts

19 lb-ft · 26 Nm

—

Connector Bolts

6 lb-ft · 8 Nm

—

Cover Screws

10 lb-ft · 14 Nm

—

Engine Cover Clips

3 lb-ft · 3 Nm

—

Ignition Coil Bolt

10 lb-ft · 14 Nm

—

Ignition Coil Bolts

6 lb-ft · 8 Nm

—

Mounting Bolts

25 lb-ft · 34 Nm

—

Oil Drain Plug

Critical

Use new crush washer

26 lb-ft · 35 Nm

—

Sensor Bolts

10 lb-ft · 14 Nm

—

Spark Plug

Critical

Gap before install

19 lb-ft · 25 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

—

2009 MERCEDES-BENZ SLK55 AMG R171

14 fasteners