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Home >> BMW >> 2009 >> 135i 2D Convertible, Automatic >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Engine Electrical System - Repair >> Ignition Wires, Spark Plugs >> 12 12 011 Replacing all spark plugs (N53, N54, N54T, N63)

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

Special tools required: 

See ENGINE ELECTRICAL SYSTEM - SPECIAL TOOLS .

Necessary preliminary tasks: 

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
G04755080Courtesy 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
G04755081Courtesy 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
G04755082Courtesy of BMW OF NORTH AMERICA, INC.
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