Heater And A/C Unit, Removing And Installing: Removing
Immediately seal off any open lines and connections with clean plugs from the Engine Bung Set:VAS 6122 .
If the heater and A/C unit, the evaporator or the heat condenser is being replaced:
-- Pay attention to the procedure when replacing the refrigerant circuit components. Refer to the appropriate Service Information .
Continuation
There is a risk of fatal injury due to high voltage.
Electrocution by direct contact or electric arc can cause severe bodily injury or fatal injury.
- Have a high-voltage technician (HVT) or a high-voltage expert (HVE) de-energize the high-voltage system.
-- Refer to [For engine(s) EBJA, EBJC, ECUA, EDFA, EDDA] High-Voltage System, De-Energizing .
-- Perform the "open the electric activated valves for the refrigerant circuit for extracting, evacuating and filling" with Vehicle Diagnostic Tester . Refer to Diagnostic Entries .
-- Refer to the appropriate Service Information .
-- Remove the heater and A/C unit air intake housing. Refer to Heater and A/C Unit Air Intake Housing, Removing and Installing .
Danger of frostbite due to refrigerant coming out under pressure.
Frostbite on the skin and other parts of the body is possible.
- Wear safety gloves.
- Wear protective eyewear.
- Evacuate or drain refrigerant and open the refrigerant circuit immediately.
- If more than 10 minutes have elapsed since evacuating or draining the refrigerant and the refrigerant circuit was not opened, evacuate or drain the refrigerant again. Pressure develops in the refrigerant circuit due to evaporation.
-- Remove the bolts -1- through -4-.
-- Remove the refrigerant lines.
-- Remove the instrument panel crossmember. Refer to INSTRUMENT PANEL CROSSMEMBER, REMOVING AND INSTALLING .
-- Remove the rear passenger side footwell vent. Refer to FRONT PASSENGER SIDE FOOTWELL VENT, REMOVING AND INSTALLING .
-- Disconnect the rear center console air duct vent from the heater and A/C unit. Refer to AIR DUCT FOR REAR CENTER CONSOLE VENT, REMOVING AND INSTALLING .
-- Disconnect the connectors and the wire from the heater and A/C unit.
Risk of damaging the airbag control module. If moisture enters the connectors, they will corrode.
- After disconnecting, cover or seal the control module connectors to prevent moisture from entering.
-- Put a cleaning cloth under the condensation water drain -1-, to catch leaking condensation water.
-- Remove the condensation water drain -2- from the heater and A/C unit connection -1- -arrow A-.
-- Disconnect the connector -7-.
-- Loosen the clip -5-.
-- Remove the nut -8-, remove the potential equalization cable.
Condition
- The help of a second person is necessary for the following procedure.
-- Remove the heater and A/C unit -1-.