Removing and installing expansion valve, e-Golf — VW

🧭 Before you start

Observe the air conditioning and high-voltage safety precautions, then extract the refrigerant. Unscrew the line bolt, pull both refrigerant lines off the expansion valve, remove the two valve bolts and take the valve out. Plug all open connections, check the evaporator pipes for dirt and damage, and renew the seals. Fit the valve, tighten its bolts to specified torque, join and insert the lines, and start the line bolt by hand before tightening it.

Fits: platform code BE1

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

Don't miss

• Extract the refrigerant with the service station before undoing anything.
• Plug every opened line and port immediately with clean bungs to keep moisture out.
• Renew the seals and moisten them with refrigerant oil; check they sit properly on the evaporator pipes.
• Start the line bolt (4) by hand before tightening, to avoid cross-threading.
• Evacuate, recharge and leak-test the circuit after assembly, as general practice.

Written for this job from the workshop steps below · TorqFix editorial.

📋 Procedure

1. Observe safety precautions Safety precautions when working on air conditioning systems.
2. Observe safety precautions when working in the vicinity of high-voltage components Safety precautions when working in the vicinity of high-voltage components.
3. Comply with notes Working on refrigerant circuit. [Note: The refrigerant must be extracted beforehand, with the air conditioning service station.To prevent the intrusion of moisture, all components of the refrigerant circuit which have been opened must be sealed with suitable plugs.]
4. Extract refrigerant.
5. Unscrew bolt (2).

6. Pull refrigerant lines (1) and (3) off expansion valve.
7. Unscrew bolts (1) and (2).
8. Pull out expansion valve (3).
9. 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.]
10. Renew seals. For versions, refer to Electronic Parts Catalogue.
11. Insert expansion valve (3).
12. Tighten bolts (1) and (2) to specified torque.
13. Insert refrigerant line (3) in (direction of arrow) into refrigerant line (1).
14. Insert refrigerant lines (1) and (3) into expansion valve (2).
15. Start bolt (4) by hand and only then tighten to specified torque.

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