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Home >> Porsche >> 2021 >> Taycan Turbo >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> 85 Ventilation -- Y1A - TAYCAN (Y1A) >> WM, 851519 Removing And Installing Heating/Fresh Air Unit >> Preliminary Work

Preliminary Work

  1. Observe warning notes for working on the high-voltage vehicle electrical system.

    > General warning notes for working on the high-voltage vehicle electrical system 

  2. Isolate the high-voltage system from the power supply.

    > Refer to the appropriate service information.

  3. Drain refrigerant.

    > 870317 DRAINING AND FILLING REFRIGERANT R134A

    > 870317 DRAINING AND FILLING REFRIGERANT R1234YF

  4. Drain coolant.

    > 193817 DRAINING AND FILLING COOLANT

  5. Remove HV voltage converter.

    > 270319 REMOVING AND INSTALLING HV VOLTAGE CONVERTER

  6. Remove dashboard bracket.

    > 516819 REMOVING AND INSTALLING DASHBOARD BRACKET

  7. Remove front footwell outlet vent.

    > 805519 REMOVING AND INSTALLING FRONT FOOTWELL OUTLET VENT