Automatic Transmission Fluid: Replacement

Replacement of automatic transmission fluid
1. Lift up the vehicle and maintain in a horizontal position.[*1]
2. Remove the under cover front AL. (Refer to REMOVAL )
3. Remove the under cover COMPL T/M. (Refer to REMOVAL )
4. Remove the drain plug and gasket to drain fluid.[*2]
5. Temporarily tighten the drain plug via the gasket.[*3]
  NOTE: Perform the replacement of the gasket and final tightening by following procedure [*16].
6. Remove the refill plug and the O-ring.[*4]
7. Use a socket hexagon wrench to remove the overflow plug.[*5]
  
  Fig 1: Identifying Refill Plug, Overflow Plug And Refill Hole
  Courtesy of SUBARU OF AMERICA, INC.
8. Add fluid through the refill hole until the fluid flows out of the overflow tube.[*6]
  CAUTION:
  - Fill in auto fluid WS.
  - Slowly add the fluid. Adding the fluid rapidly can cause the fluid to hit internal parts and splash around resulting in fluid flowing out of the refill hole.
  Fig 2: Flowing Fluid Out Of Overflow Tube
  Courtesy of SUBARU OF AMERICA, INC.
9. Wait until the fluid stops flowing and is only dripping.[*7]
10. Use a socket hexagon to temporarily tighten the overflow plug via the gasket.[*8]
  NOTE: Perform the replacement of the gasket and final tightening after adjusting the fluid amount.
11. Add fluid through the refill hole until reaching the specified amount when removing/installing the oil pan.[*9] Specified amount: 2.0 L {2.1 US qt, 1.8 lmp qt}
  NOTE: If fluid flows out from the refill hole and you cannot fill the specified amount when adding fluid through the refill hole, perform procedures [*10] to [*15] below in order to circulate fluid until it reaches the oil passages in the transmission and inside the torque converter, then add the specified amount of fluid through the refill hole.
12. Temporarily tighten the refill plug via the O-ring.[*10]
  NOTE: Perform the replacement of the O-ring and final tightening after adjusting the fluid amount.
13. Lower the vehicle.[*11]
14. Start the engine.[*12]
  NOTE: Start the engine with the A/C turned OFF.
15. Move the select lever from P position to M position slowly, and shift it to P position again.[*13]
16. Idle the engine for 30 seconds to warm up the engine.[*14]
17. Turn the ignition switch to OFF.[*15]
18. Repeat operations [* 1] to [* 15].
19. Perform operations [*1] to [*2].
20. Install the drain plug via a new gasket.[*16]
  Standard value: T=20N.m {204kgf.cm} {14.8ft.lbf}
21. Perform operations [*4] to [*11].
22. Adjust the fluid amount. (Refer to ADJUSTMENT )
23. Install the under cover COMPL T/M. (Refer to INSTALLATION step 10)
24. Install the under cover front AL. (Refer to INSTALLATION step 11)
25. Lower the vehicle.
26. Operation finished.