Subaru BRZ (2012 year). Service manual — part 20
PM-9
Spark Plug
PERIODIC MAINTENANCE SERVICES
5. Spark Plug
A: REPLACEMENT
1. REMOVAL
1) Disconnect the ground cable from battery.
CAUTION:
Disconnect the ground cable from the battery with the driver’s and the passenger’s doors open (with
the glass lowered to a position where the door can be opened/closed with no problems). This is to
prevent molding damage that occurs when opening/closing a door with the glass fully closed and the
ground cable disconnected due to the power window index function that slightly opens/closes the
glass in conjunction with opening/closing doors.
2) Remove the air cleaner assembly w/hose.
(1) Disconnect the connector of the mass air flow and intake air temperature sensor, and remove the one
clip that holds the harness.
(2) Slide the hose clip and disconnect ventilation hose No. 1.
(3) Loosen the two hose clamps.
(4) Remove the three bolts to remove the air cleaner assembly w/hose.
3) Disconnect the hose assembly from the sound creator.
4) Remove the two bolts and remove the sound creator.
PM-00589
PM-10
Spark Plug
PERIODIC MAINTENANCE SERVICES
5) Disconnect the front oxygen (A/F) sensor connector (A) and rear oxygen sensor connector (B).
6) Remove the two bolts securing the harness of the front oxygen (A/F) sensor, and remove the two clips
from the stay.
7) Remove the two clips securing the rear oxygen (A/F) sensor harness.
8) Lift up the vehicle.
PM-00636
(A)
(B)
PM-00637
PM-11
Spark Plug
PERIODIC MAINTENANCE SERVICES
9) Remove the 12 bolts and seven clips to remove engine under cover No. 1.
10) Remove the seven bolts to remove engine under cover No. 2.
PM-00638
PM-00639
PM-12
Spark Plug
PERIODIC MAINTENANCE SERVICES
11) Remove the three clips to remove the front mat guard under RH.
12) Remove the two nuts and disconnect the joint pipe.
PM-00640
PM-00641
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