Removing and installing refrigerant line with internal heat exchanger, Passat — VW

🧭 Before you start

Fits: VW Passat B8 (3G, 2014–)

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• Ensure proper seating of seals in the groove of the respective refrigerant line.

📋 Procedure

1. Remove engine 10Removing and installing engine.
2. Remove charge air cooler connecting pipe 21Charge air system; Assembly overview - charge air system.
3. Unscrew nuts (1) and (3).
4. Fold the heat shield (2) as far forwards as possible (arrow).
5. Extract refrigerant using air conditioner service station before opening refrigerant circuit.

6. Remove bolt (7).
7. Detach refrigerant line (6) with internal heat exchanger from expansion valve.
8. Unscrew nuts (1) and (3) and pull off refrigerant lines (2) and (4).
9. Remove refrigerant line (5) with internal heat exchanger.
10. Seal off open lines and connections with clean plugs from engine bung setVAS 6122.
11. Clean the connections at the expansion valve (2) and at the internal heat exchanger (4) and check for damage.
12. Thoroughly clean connections of refrigerant lines and check lines for damage. [Note: Ensure proper seating of seals in the groove of the respective refrigerant line.]
13. Insert seals (1) and (3) into groove on connection of internal heat exchanger.
14. Insert internal heat exchanger on expansion valve.
15. Tighten bolt (5).
16. Connect refrigerant lines (2) and (4) with internal heat exchanger to connections.
17. Screw on nuts (1) and (3) and tighten them.

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