This is an easy DIY. You will spend more time removing and re-installing the underbody splash shield than replacing the fluid.
- 3 bottles of DW-1 ATF
- Two crush washers, Part # 94109-2000
- T30 Torx bit
- 10mm socket
- clip removal tool
- 3/8″ square drive ratchet or breaker bar or impact wrench
- Torque wrench
- Drain pan, 1 gallon or larger
- Fluid transfer pump, syringe, or other method of pumping fluid through fill hole. You can find these at most auto parts stores or Amazon.
- Raise car.
- Using T30 Torx bit, remove the corner air deflectors.
- Using T30 Torx, 10mm socket, and clip remover, remove the bolts and one clip holding the splash shield. Remove shield.
- Using 3/8″ square ratchet/breaker bar/impact wrench, remove the fill plug. (Always remove or at least loosen the fill plug before removing drain plug.)
- Place drain pan beneath TMU. Remove drain plug.
- Once fluid is drained, re-install drain plug using new washer. Torque to 35 lb-ft (47 N-m).
- Add DW-1 ATF through fill hole until fluid starts to dribble out (about 2.5L) using whatever device you have.
This is something I made a while ago, and uses compressed air.
Stop once fluid starts dribbling out the fill hole.
- Using new washer, re-install the fill plug. Torque to 35 lb-ft (47 N-m).
- Re-install the splash shield and air deflectors. Torque bolts to 7 lb-ft.