Any liquid-cooled car engine has a small device called the thermostat that sits between the engine and the radiator. Its job is to block the flow of coolant to the radiator until the engine has warmed up. When the engine is cold, no coolant flows through the engine.
Once the engine reaches its operating temperature (generally about 200 degrees F, 95 degrees C), the thermostat opens. By letting the engine warm up as quickly as possible, the thermostat reduces engine wear, deposits and emissions.

Name: coolant thermostat/80℃
Reference OE number: 032121111CL
Product system: engine
Brand:vika
Applicable models of vika coolant thermostat:
VW: FOA04-10/PO02-10/POS04-06
SEAT: A3 97-03
Audi: CO03-05;06-09/IB06-10
The advantages of vika coolant thermostat:
1. The housing is made by American DuPont PA66 and 30%GF, with engineering plastic to increase the strength.
2. Two versions supplied to meet customers’ diverse requirements—87-87℃; 80-89℃.
3. The same manufacturer with FEBI, high quality guarantee.
4. 18 months warranty!