Removing and installing expansion valve, Passat — VW

🧭 Before you start

Fits: VW Passat B8 (3G, 2014–)

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• If heat insulation (2) is missing or improperly installed, it may lead to reduced performance of the air conditioning system (due to changes in the set mapped values through heat radiation).

📋 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.
5. Unscrew nuts (1) and (3) of refrigerant lines with internal heat exchanger (5).

6. Remove bolt (7).
7. Detach refrigerant line with internal heat exchanger (5) from expansion valve.
8. Remove bolts (1) and (3).
9. Pull expansion valve (4) out of heat insulation (2).
10. Seal off open lines and connections with clean plugs from engine bung setVAS 6122.
11. Fit seals (1) and (4) on connecting pipes (2) and (3).
12. Check refrigerant lines for dirt and damage.
13. Push refrigerant lines (2) into expansion valve by hand.
14. Screw bolt (1) in by hand.
15. Tighten bolt (1). [Note: If heat insulation (2) is missing or improperly installed, it may lead to reduced performance of the air conditioning system (due to changes in the set mapped values through heat radiation).]

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