12 12 011 Replacing All Spark Plugs (N53, N54)

Special tools required:

Switch off ignition.

Remove ignition coils.

Special tools required:

Unscrew spark plugs with special tool 12 1 220 and extension (1) with min. 8° bend.

Installation:

Screw down spark plugs with special tool 12 1 220, extension (1) with min. 8° bend and torque limiter 12 1 172.

If special tool 12 1 172 is not used, observe tightening torque 12 12 1AZ, see ENGINE ELECTRICAL SYSTEM -- TORQUE SPECIFICATIONS -- TWIN TURBO .

Fig 1: Identifying Special Tool (12 1 220, 12 1 172)

Courtesy of BMW OF NORTH AMERICA, INC.

Attach new spark plug (1) to special tool 12 1 230.

Fig 2: Identifying Special Tool (12 1 230) On Spark Plug

Courtesy of BMW OF NORTH AMERICA, INC.

Screw spark plug with special tool 12 1 230 in to cylinder head plug thread as far as it will go.

Fig 3: Identifying Special Tool (12 1 230) In To Cylinder Head

Courtesy of BMW OF NORTH AMERICA, INC.