12 12 011 Replacing all spark plugs (N12, N14, N16, N18)

Necessary preliminary tasks

IMPORTANT: Wear safety goggles.

Oil and dirt particles may get into your eyes!

Clean spark plug slot with compressed air.

Unscrew spark plugs with special tool 12 1 220 and an extension with joint.

Installation note:

First screw spark plugs into engine finger-tight with special tool 12 1 220 and extension with joint.

Then tighten spark plug with torque wrench, special tool 12 1 220 and extension with joint.

Observe tightening torque.

Tightening torque 12 12 2AZ .

Fig 1: Removing Spark Plugs Using Special Tool (12 1 220)

Courtesy of BMW OF NORTH AMERICA, INC.