Tesla Model 3: Gearbox Fluid - Rear Drive Unit (Drain and Refill)

 Hose - Supply - Powertrain (Remove and Replace)

Remove Remove the HV battery. See HV Battery (RWD) (Remove and Install). Release the clip and disconnect the powertrain supply hose fitting from the RH underside of the penthouse. Release the clips (x5) that attach the powertrain supply (upper) hose to the RH side of the HV battery,

 5-Way Valve - Install

Install Install new O-rings onto the 5-way valve cover. Note: Align notches in the o-rings with the ribs in the 5-way valve cover. Examine the end the of the 5-way valve stem shell shaft. One shaft spline is slightly wider than the others. Mark the wider spline. Slide the new stem shell in