volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Thermostat, Engine Cooling|Service and Repair > < Thermostat, Engine Cooling|Specifications
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Thermostat: Locations

Bypass thermostat

Bypass thermostat, assembly overview

1. Retaining clip
2. Lower part of housing
3. Operating element
4. Spring
5. O-ring
6. Upper part of housing

Checking bypass thermostat:
-

Remove operating element.

-

Warm operating element in a coolant bath.

Starts to open: approximately 75° C 
Opening end: approximately 85° C 
Opens: approximately 5 mm 
Bypass thermostat location:
Bypass thermostat for coolant circuit transmission oil: 
-

Arrow on bottom part of thermostat points to heater unit heat exchanger. 

Bypass thermostat for coolant circuit turbocharger: 
-

Arrow on bottom part of housing points to Coolant Pump V50.

Thermostat, Engine Cooling|Service and Repair > < Thermostat, Engine Cooling|Specifications