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Home >> Porsche >> 2021 >> Panamera 4S >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> 85 Ventilation - Coupe - PANAMERA (971) >> WM, 851519 Removing And Installing Heating/Fresh Air Unit >> Preliminary Work

Preliminary Work

  1. Drain coolant.

    > 193817 DRAINING AND FILLING COOLANT

  2. Disconnect battery ground strap.

    > WM, 270619 REMOVING AND REINSTALLING BATTERY

  3. Remove knee airbag on driver's side.

    > 697819 REMOVING AND INSTALLING KNEE AIRBAG ON DRIVER'S SIDE

  4. Remove knee airbag on passenger's side.

    > 697919 REMOVING AND INSTALLING KNEE AIRBAG ON PASSENGER'S SIDE

  5. Remove dashboard bracket.

    > WM, 516819 REMOVING AND INSTALLING DASHBOARD BRACKET (MAIN BRACKET)

  6. Remove cowl panel cover.

    > WM, 508719 REMOVING AND INSTALLING COWL PANEL COVER

  7. Drain refrigerant.

    > WM, 870317 DRAINING AND FILLING REFRIGERANT R134A , WM, 870317 DRAINING AND FILLING REFRIGERANT R1234YF

  8. Panamera Turbo: Remove cross panel. 

    > WM, 508119 REMOVING AND INSTALLING CROSS PANEL

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