Spark Plug: Replacement

WARNING: This page is about a different car, the 2011 Subaru Tribeca. However, it is still accessible from the selected car via links, so may be relevant.

Remove the battery and battery carrier.
Remove the air cleaner case.
Detach the connector from ignition coil.
Remove the ignition coil.

Fig 1: Identifying Bracket And Connector
Courtesy of SUBARU OF AMERICA, INC.
Remove the spark plug with a spark plug socket.

Fig 2: Removing Spark Plug Using Spark Plug Socket
Courtesy of SUBARU OF AMERICA, INC.
Tighten the new spark plug lightly with hand, and then secure with a spark plug socket to the specified torque.
NOTE:
- Be sure to place the gasket between the cylinder head and spark plug.
- If the torque wrench is not available, tighten the spark plug until gasket contacts cylinder head; then tighten further 1/4 to 1/2 turns.
Recommended spark plug:

NGK: SILFR6C11

Tightening torque:

21 N.m (2.1 kgf-m, 15.5 ft-lb)
Install the ignition coil.
Tightening torque:

16 N.m (1.6 kgf-m, 11.8 ft-lb)