Jetta V6-2.8L (BDF) (2002)
Thermostat Housing: Service and Repair
Coolant thermostat housing, disassembling and assembling
Note: Routing coolant hoses to thermostat housing, Refer to Cooling System, draining and filling.
1. O-ring
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Replace if damaged
2. Retaining clip
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Check seated securely
3. Thermostat housing
4. Bracket
5. 8 Nm
6. Coolant thermostat
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Observe installation position
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Checking: Heat up thermostat in water
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Starts to open at approximately 80°C
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Ends at approximately 105°C
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Opening stroke at least 7 mm
7. Unions
8. Seal
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Replace
9. Engine Coolant Temperature (ECT) sensor -G62-
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For engine control module
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With ECT sensor -G2
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Release pressure in cooling system if necessary before removing components
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Checking:
Refer to Powertrain Management
10. Plug
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Release pressure in cooling system if necessary before removing components