Preliminary Work

Observe warning notes for working on the high-voltage vehicle electrical system.
> General warning notes for working on the high-voltage vehicle electrical system
Isolate the high-voltage system from the power supply.
> WM, 2X00IN ISOLATION FROM POWER SUPPLY PRIOR TO PERFORMING MAINTENANCE TASKS ON BEV VEHICLES
Drain refrigerant.
> 870317 DRAINING AND FILLING REFRIGERANT R134A

> 870317 DRAINING AND FILLING REFRIGERANT R1234YF
Drain coolant.
> 193817 DRAINING AND FILLING COOLANT
Remove brake fluid reservoir.
> 471019 REMOVING AND INSTALLING BRAKE FLUID RESERVOIR
Remove strut (dome strut).
> 408619 REMOVING AND INSTALLING STRUT (DOME STRUT)
Disconnect reservoir from the bulkhead and set it aside.
> 194019 REMOVING AND INSTALLING RESERVOIR
Loosen fuse box for body front section from the bulkhead and set it aside.
> 978409 LOOSENING AND SECURING FUSE BOX FOR BODY FRONT SECTION
Loosen electric passenger compartment heater from the bulkhead and set it aside.
> 828019 REMOVING AND INSTALLING ELECTRIC PASSENGER COMPARTMENT HEATER