Is it normal for the Jetta's water temperature to always be at 50 degrees Celsius?

[ORiver]

When the car is running normally, the normal reading of the water temperature gauge should be between 70 and 90 degrees. The impact of high water temperature on the car: The expansion of engine components will reduce the clearance between parts, increasing engine wear; it will lower the viscosity of the engine oil, leading to increased wear on various parts and reducing the engine's lifespan; damage to the cylinder gasket may cause cross-flow between the water, oil, and air passages on the gasket, allowing oil to enter the radiator and water to mix with the engine oil. Solutions for high water temperature: Check if the thermostat's opening is insufficient. If the thermostat's opening is too small at normal temperatures, it will slow down the circulation of the engine's cooling water, causing high water temperature at low speeds. Check if the water pump is experiencing cavitation. The Jetta's water pump impeller is made of plastic, and if the shaft cracks, it can cause cavitation when the water temperature is high, leading to elevated water temperature.