How do you remove heater matrix in Skoda octavia?

To remove the heater matrix in a Skoda Octavia, start by disconnecting the battery and draining the cooling system. Then, remove the dashboard and any necessary trim pieces to access the heater unit. Disconnect the hoses connected to the heater matrix, unbolt the heater unit, and carefully remove it from the vehicle. Finally, replace the heater matrix and reassemble everything in reverse order.