12 12 011 Replacing all spark plugs

Necessary preliminary tasks: 

• Switch off ignition.
• Remove IGNITION COILS .

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: 23±3 Nm

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

Courtesy of BMW OF NORTH AMERICA, INC.