Removing and installing expansion valve, e-Golf with heat pump — VW

🧭 Before you start

Fits: platform code BE1

• Renewed: seals
• Also covered elsewhere: Electronic Parts Catalogue

Don't miss

• Check refrigerant pipes leading to evaporator for dirt and damage.Moisten seals with refrigerant oil before installing.Ensure seals are properly seated on connecting pipes of evaporator.

📋 Procedure

1. Observe safety precautions when working on the high-voltage system Safety precautions when working on high-voltage system.
2. Observe safety precautions Safety precautions when working on air conditioning systems.
3. Observe safety precautions when working in the vicinity of high-voltage components Safety precautions when working in the vicinity of high-voltage components.
4. Observe safety precautions Safety precautions when working on the cooling system.
5. Comply with notes Working on refrigerant circuit.

6. Observe the risk rating of the high-voltage system Electric drive00Risk category of the high-voltage system.
7. Using , initiate basic setting, then perform function "Charge refrigerant circuit". [Note: Always perform the basic setting "“Charge refrigerant circuit”" using the , to make sure that all valves of the refrigerant circuit are opened. This is the only way to extract the complete refrigerant from the circuit.The must not be disconnected from the vehicle during the entire extraction, evacuation and charging process.To prevent the intrusion of moisture, all components of the refrigerant circuit which have been opened must be sealed with suitable plugs.]
8. Extract refrigerant with air conditioning service station. Comply with notes .
9. Remove valve unit of heat pump Removing and installing valve unit of heat pump.
10. Unscrew bolts (2).
11. Pull out expansion valve (1).
12. Seal off open lines and connections with clean plugs from engine bung setVAS 6122. [Note: Check refrigerant pipes leading to evaporator for dirt and damage.Moisten seals with refrigerant oil before installing.Ensure seals are properly seated on connecting pipes of evaporator.]
13. Renew seals. For versions, refer to Electronic Parts Catalogue.
14. Insert expansion valve (1).
15. Tighten bolts (2) to specified torque.
16. Using , initiate basic setting, then perform function "Charge refrigerant circuit". [Note: Always perform the basic setting "“Charge refrigerant circuit”" using the , to make sure that all valves of the refrigerant circuit are opened. This is the only way to charge the complete circuit.The must not be disconnected from the vehicle during the entire extraction, evacuation and charging process.If the component has been renewed due to a mechanical defect (e.g. wear), purge the refrigerant circuit.]

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