12 12 011 Replacing all spark plugs (N54)

WARNING: This page is about a different car, the 2013 BMW Z4, 2012 BMW Z4, 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary work

Switch off ignition.
Remove IGNITION COILS .

IMPORTANT: Wear safety goggles.

Oil and dirt particles may get into your eyes!

Clean spark plug slot with compressed air.

Unscrew the spark plugs with special tool 12 1 220 and an extension with a minimum kink of 8°.

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

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

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

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Screw the spark plug hand-tight with special tool 12 1 230 into the cylinder head plug thread to the limit position.

Fig 3: Installing Spark Plug Using Special Tool (12 1 230)

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Installation note:

Tighten the spark plugs with a torque wrench, special tool 12 1 220 and an extension with a minimum kink of 8°.

Observe tightening torque.

Tightening torque 12 12 2AZ .

Fig 4: Removing Spark Plugs Using Special Tool (12 1 220)

Courtesy of BMW OF NORTH AMERICA, INC.