Home >> Porsche >> 2020 >> Taycan 4S >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> 80 Heater -- Y1A - TAYCAN (Y1A) >> WM, 803019 Removing And Installing Heat EXCHANGER Supply Hose (Section From Additional Coolant Pump To Directional-Control Valve) >> Subsequent Work