Frontier 2WD L4-2.5L (QR25DE) (2005)
Housing Assembly HVAC: Service and Repair
HEATER & COOLING UNIT ASSEMBLY
Components
Removal and Installation
REMOVAL
1. Discharge the refrigerant from the A/C system. Refer to "HFC-134a (R-134a) Service Procedure".
2. Drain the coolant from the engine cooling system. Refer to "DRAINING ENGINE COOLANT" (QR), "DRAINING ENGINE COOLANT" (VQ).
3. Disconnect the battery negative and positive terminals.