DSG-423 COOLING SYSTEM
05-12
Thermostat & Housing - Replacement
WARNING: REFER TO CAUTIONS AND WARNINGS
AT THE BEGINNING OF THIS SECTION.
NOTE: The thermostat and housing are serviced as an
assembly.
1. Allow the engine to cool down until the coolant has
lowered in temperature to below 110°F.
2. Drain the radiator so coolant level is below the
thermostat -- Refer to“Draining the Cooling System”
on page 9 of this section.
3. Remove or disconnect components as necessary to
gain access to the thermostat housing.
4. Disconnect the lower radiator hose.
5. Remove bolts and thermostat housing.
6. Reverse procedure to install:
• Clean and inspect gasket, install a new gasket if
necessary.
• Tighten bolts to 10 Nm (89 lb-in).
Thermostat
& Housing
Bolt
Gasket
Radiator
Hose
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