12 12 011 Replacing All Spark Plugs (N53, N54)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2010 BMW 335xi, 2010 BMW 335i, 2009 BMW 335xi, 2009 BMW 335i, and 2008 BMW 335xi. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
- 12 1 172
- 12 1 220
- 12 1 230. See ENGINE ELECTRICAL SYSTEM -- SPECIAL TOOLS -- TWIN TURBO .
Switch off ignition.
Remove ignition coils.
Special tools required:
- 12 1 172
- 12 1 220
- 12 1 230. See ENGINE ELECTRICAL SYSTEM -- SPECIAL TOOLS -- TWIN TURBO .
Unscrew spark plugs with special tool 12 1 220 and extension (1) with min. 8° bend.
Installation:
Screw down spark plugs with special tool 12 1 220, extension (1) with min. 8° bend and torque limiter 12 1 172.
If special tool 12 1 172 is not used, observe tightening torque 12 12 1AZ, see ENGINE ELECTRICAL SYSTEM -- TORQUE SPECIFICATIONS -- TWIN TURBO .
Attach new spark plug (1) to special tool 12 1 230.
Screw spark plug with special tool 12 1 230 in to cylinder head plug thread as far as it will go.