12 12 011 Replacing all spark plugs (N62, N62TU)

• 12 1 171
• 12 1 172

Necessary Preliminary Tasks: 

• Switch off ignition.
• Remove all ignition coils. Refer to 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.

Tightening torque, refer to 12 12 1AZ in ENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Fig 1: View Of Special Tools

Courtesy of BMW OF NORTH AMERICA, INC.