audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Procedures|Page 6906 > < Procedures
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Disconnect coolant hose (arrow) from thermostat housing.

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Remove bolts -1- and -2- and take off thermostat housing.

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Remove O-ring and thermostat.

Installing

Note:  Replace gaskets and O-rings

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Clean and smooth down sealing surface for O-ring as required.

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Install thermostat.
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Installation position: vent valve (arrow) faces up

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Install thermostat housing.

The remaining installation steps are performed in the reverse sequence. Note the following points:
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Install toothed belt (adjust valve timing).

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Fill with coolant.

Tightening torques 
Thermostat housing to cylinder block .....................................................................................................................................................................  14 Nm 1)
Upper ribbed belt idler wheel to torque support ..........................................................................................................................................................  10 Nm

1) Bolt strength rating 10.9

Procedures|Page 6906 > < Procedures