12 12 011 Replacing All Spark Plugs (N62, N62TU)

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. 

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. See ENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Tightening torque. See ENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Fig 1: Identifying Special Tool (12 1 171 And 12 1 172)

Courtesy of BMW OF NORTH AMERICA, INC.