12 12 011 Replacing all spark plugs (N53, N54, N54T, N63)

WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

12 1 172
12 1 220
12 1 230

See ENGINE ELECTRICAL SYSTEM - SPECIAL TOOLS .

Necessary preliminary tasks:

Switch off ignition.
Remove ignition coils.

IMPORTANT: Wear protective 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 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 in 12 12 SPARK PLUGS .

Fig 1: Unscrewing Spark Plugs Using Special Tool 12 1 220 And Extension

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 2: Attaching Spark Plug To Special Tool 12 1 230

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: Screwing Spark Plug Using Special Tool 12 1 230 In To Cylinder Head Plug Thread

Courtesy of BMW OF NORTH AMERICA, INC.