12 12 011 Replacing all spark plugs (N62)

Special tools required: 

• 12 1 171
• 12 1 172

Necessary preliminary tasks: 

• Switch off ignition.
• Remove all ignition coils. See 12 13 511 Replacing ignition coil (N62) 

Unscrew spark plugs with special tool 12 1 171.

Fig 1: Identifying Spark Plug Remover

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Tighten down spark plugs with special tool 12 1 171 and special tool 12 1 172 (torque limiter).

Without special tool 12 1 172, observe tightening torque.

Tightening torque 12 12 1AZ. Refer to ENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUES .