Jetta overheatting

[fonsy_2000]

Ok,
I will try to explain my issue to see if someone here can help me.

First occurrence.
The car in normal condition stays at 190F all the time, but when I go around the express way, the car goes up to 210F, on that time the temp light turns on, I got to my destination and I open the hood and I identify a broken hose because it was giving off steam so I changed it.

Second occurrence
After filling the car again with coolant I ride again the same distance but I notice that the temp was ok (190) but when I tried accelerating more the temp was increasing to 210 again, I came back and I thought that another hose was broken but it wasn't, I wait until the car got cold and I needed to fill more water in the bottle because when I turn the car on the light was telling me that the bottle need water, I did and it was ok , but I tried the same route after and the same thing happened. Without anything being broken the car still leaks water and overheats after each ride. What I want to know is why this is occurring. Thank you very much. I really appreciate a response.

[Scigano]

When was the last time your water pump was changed? They're typically changed with the timing belt on these engines (every 60,000 to 70,000 miles). The pumps on these 1.8Ts have plastic impeller wheels that wear out over time.

When they do wear out enough, they will no longer grip the shaft of the water pump well enough to spin with it and properly circulate coolant.

The failed pump could also be the source of your leak — if you do in fact have a leak.

Have you noticed your coolant level dropping within the coolant-bubble? Or do you just go by the low-coolant indicator on your dashboard.

Reason I ask is because the low-level coolant warning and the high-tempature warning both use the same symbol on the dashboard.

A done-in water pump has a typical symptom of showing over-heating at speed instead of at idle. Under load, when the water pump is spinning faster at speed — the worn impeller wheel can't grip the shaft at those RPMs, but may still spin enough coolant to keep you at 190*F with the help of the cooling system (fans, etc).

[fonsy_2000]

yes is right, I decided to take out the thermostat first and find out if is really is the water pump, and pump, yes is the water pump, I felt it

thank you for your lines