My volkswagon keeps over heating and I changed the thermostat

thermostat needs changed..its a mechanical heat valve..

Thermostat Coolant Pump & Thermostat Hope this helps, it it does please leave feedback and vote Thank You and Good Luck

If the thermostat is working, and there is no visible coolant leak or water/coolant in engine oil dipstick, then it could be the electric fan, try running your car and when it starts to overheat check to see if the fan is working. Good Luck.

I had a similar problem with my 02 grand am, which i still own and i changed the thermostat and it seems to have fixed the problem so far. Keep your heat on high while driving and make sure ther'es enough coolant. The thermostat is relatively easy to change and only cost 10 dollars new.

hi, its a good chance the head gasket has gone and also the thermostat will need checking and also the water pump.
if the water pump or the thermostat failed then this would cause the engine to over heat and blow the head gasket.

If your doing the work yourself then get a workshop manual as you will need it for the head bolt sequence and also the torque settings and timing marks for the timing belt.

Let me know how you get on or if you need further assistance ok

sounds as though you need a thermostat, it's staying open, which won't allow the engine to stay warm,...does it heat up while idling?

I can't tell you exactly, but a rule of thumb is follow the top hose off the radiator, find where an aluminum housing bolts to the motor. Its right behind that.

The thermostat on your volkswagon helps the engine keep operating at a predetermined temperature for best fuel economy and engine performance. However, the thermostat mechanism wears down after months of use and subsequently fails. If stuck in the closed position, the thermostat will not allow coolant to circulate, causing the engine to heat up dangerously; if stuck in the open position, the engine will never reach proper operating temperature, causing fuel consumption and poor engine performance. In either case, the thermostat must be replaced. Its fairly cheap

Follow the BIG water line comein from the rad on the top itll go into a housing in their is the thermostat

Have you changed the thermostat, if no do that, but this sounds like you may have blown a head gasket.