Replacing All Spark Plugs - II

Replacing All Spark Plugs (N62)

Special tools required:
- 12 1 171
- 12 1 172

Necessary preliminary tasks:
- Switch off ignition.
- Remove all ignition coils.







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.
1AZ Spark plugs (ungreased)
All
M12x1.25 23 ± 3 Nm
All
M14x1.25 30 ± 3 Nm