Removing and installing thermostat for large coolant circuit — VW

🧭 Before you start

Fits: VW Jetta VI (16, 2010–2018)

• Opens: coolant
• Special tools named: T10527/1
• Renewed: seals

🔧 Engine codes this applies to

📋 Procedure

1. Remove engine cover panel .
2. Drain coolant .
3. Detach connector from charge pressure senderGX26.
4. Release fasteners (arrows) using release tools T10527 and T10527/1.
5. Remove air pipe (1).

6. Release hose clip (4) and remove coolant hose (3).
7. Unscrew bolts (arrows) and remove lid (2) for thermostat housing.
8. Remove thermostat using spanner T10508.
9. Slightly push down spanner T10508 and turn it in (direction of arrow) while doing so.
10. Insert thermostat ensuring that the centring pin of thermostat is seated in guide (arrow).
11. Install thermostat using spanner T10508.
12. Slightly push down spanner T10508 and turn it to stop in (direction of arrow) while doing so. [Note: Renew seals.]
13. Moisten gasket with coolant.
14. Replenish coolant .

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