12 12 011 Replacing All Spark Plugs (N73)

WARNING: This page is about a different car, the 2008 BMW 760Li and 2007 BMW 760Li. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

12 1 171
12 1 200
12 7 131

Necessary preliminary tasks:

Switch off ignition.
Remove acoustic cover
Remove intake air manifold . See 11 61 050 REMOVING AND INSTALLING INTAKE AIR MANIFOLD (N73) .
Remove ignition coils . See 12 13 512 REMOVING AND INSTALLING/REPLACING ALL ROD-TYPE IGNITION COILS (N73) .

Tighten down spark plug with special tool 12 1 171 and special tool 12 7 131 (extension), special tool 12 1 200 (torque limiter). See 12 1 200 TORQUE LIMITER 30 N.M .

For tightening torque 12 12 1AZ , see 12 12 SPARK PLUGS .

Installation:

Without special tool 12 1 200 , note tightening torque. See 12 1 200 TORQUE LIMITER 30 N.M .

Fig 1: Identifying Special Tools (L12 1 171), (12 7 131) & (12 1 200)

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check function of DME.