volkswagen Workshop Repair Guides

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Coolant Thermostat (5) 
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Checking:

Heat-up thermostat in boiling water

Opening commences approx: 87°C (188°F). 
Ends approx: 102°C (215°F). 
Opening lift: 7 mm (0.28 inch) minimum. 

O-ring (7) 
-

Always replace.

Bolt (9) 
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Tighten to: 10 Nm (7 ft. lbs.). 

Pulley (11) 
-

V-belt version.

Engine, Cooling and Exhaust > Cooling System > Thermostat, Engine Cooling > Component Information > Specifications > Page 1838

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