Spring side down always because it has to contact the coolant to open at right temp:-D
It goes up.
The water pump will pump coolant(antifreeze & water) through the engine after the thermostat opens up.
a standard thermostat has a more pointed end that usually goes up. The thermostat should have an arrow or the word up stamp on the up side.
Take note on which way the old thermostat is positioned but normally the spring side is down and the top section vertical (up and down)
whichever way you want, it doesnt matter
No, the part itself is like $30 but your mechanic will typically charge alot for labor since the thermostat is hard to get to on the 2000 Jetta. My friend ended up changing it for me so it was really cheap! Hope this helps! No, the part itself is like $30 but your mechanic will typically charge alot for labor since the thermostat is hard to get to on the 2000 Jetta. My friend ended up changing it for me so it was really cheap! Hope this helps!
the thermostat should have the long part facing down
up Spring towards the engine.
The end of the thermostat with the spring faces into the engine.
Possible air lock in the heating pipes. Common after changing thermostat. look for a bleed screw on the heating pipes between the engine and interior, or loosen one of the heater pipes., after engine has warmed up. Run engine to dislodge trapped air.
There is no sure way to know until you take the thermostat out and check it. After removing the thermostat, you can test it by submerging it slowly, with a tool in boiling water. You can then see the thermostat open up. If it does, this is not your overheating cause. If it does not, you need to purchase a new one. Install the new one and you will find out if that was the problem.
The sensor goes up. The flat side down.