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Hyundai Genesis Coupe Heater & Blower Unit Removal - Replacement Procedure

Step-by-step heater unit replacement procedure with photos for draining coolant and removing the blower and heater unit.

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This page is a service procedure titled "Replacement" describing the first nine steps for removing the heater and blower unit (heater core assembly) from the vehicle. The procedure begins with disconnecting the negative battery terminal, recovering the refrigerant with a recovery/recycling/charging station, and draining the engine coolant from the radiator when the engine is cool. It then instructs removing the bolts and expansion valve from the evaporator core, with a note to plug or cap the lines immediately to avoid moisture and dust contamination, and disconnecting the inlet and outlet heater hoses from the heater unit. A caution warns that engine coolant will spill when the hoses are disconnected, advising the use of a clean drip pan and immediate rinsing of any spilled coolant to protect electrical parts and painted surfaces. Subsequent steps cover removing the crash pad and cowl cross bar assembly (with cross-references to the BD group-Crash pad section), removing the heater & blower unit after loosening 3 mounting bolts, and separating the blower unit from the heater unit after loosening 2 screws. Four illustrations (SBKHA9025D, SBKHA9026D, SBKHA9027L, SBKHA9028D) show component locations labeled A–D. The document itself does not state a year, make, or model.

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Frequently asked questions

What is the first step before removing the heater unit?
Disconnect the negative (-) battery terminal, then recover the refrigerant with a recovery/recycling/charging station and drain the engine coolant from the radiator when the engine is cool.
Why should the A/C lines be plugged or capped after removing the expansion valve?
To avoid moisture and dust contamination — the document says to plug or cap the lines immediately after disconnecting them.
How many bolts hold the heater & blower unit in place?
The heater & blower unit is removed after loosening 3 mounting bolts.
How is the blower unit separated from the heater unit?
Remove the blower unit (A) from the heater unit (B) after loosening 2 screws.
What caution applies when disconnecting the heater hoses?
Engine coolant will spill when the hoses are disconnected; drain it into a clean drip pan, do not let it spill on electrical parts or painted surfaces, and rinse off any spills immediately.

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