12 12 011 Replacing all spark plugs (N62)

WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

NOTE: For special tools, refer to ENGINE ELECTRICAL SYSTEM - SPECIAL TOOLS - 645CI .

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.

Fig 1: Unscrewing Spark Plugs With Special Tool

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.
Refer to tightening torque 12 12 1AZ, in ENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUES .